4eo8 - Revision history

OCA at 15:06, 14 March 2024

2024-03-14T15:06:08Z

←Older revision		Revision as of 15:06, 14 March 2024
Line 4:		Line 4:
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[4eo8]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Hepatitis_C_virus_(isolate_BK) Hepatitis C virus (isolate BK)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4EO8 FirstGlance]. <br>		<table><tr><td colspan='2'>[[4eo8]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Hepatitis_C_virus_(isolate_BK) Hepatitis C virus (isolate BK)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4EO8 FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=0S3:5-(3,3-DIMETHYLBUT-1-YN-1-YL)-3-{2,2-DIMETHYL-1-[(TRANS-4-METHYLCYCLOHEXYL)CARBONYL]HYDRAZINYL}THIOPHENE-2-CARBOXYLIC+ACID'>0S3</scene></td></tr>	+	</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models\|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution\|Resolution]] 1.798Å</td></tr>
		+	<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=0S3:5-(3,3-DIMETHYLBUT-1-YN-1-YL)-3-{2,2-DIMETHYL-1-[(TRANS-4-METHYLCYCLOHEXYL)CARBONYL]HYDRAZINYL}THIOPHENE-2-CARBOXYLIC+ACID'>0S3</scene></td></tr>
	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4eo8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eo8 OCA], [https://pdbe.org/4eo8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4eo8 RCSB], [https://www.ebi.ac.uk/pdbsum/4eo8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4eo8 ProSAT]</span></td></tr>		<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4eo8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eo8 OCA], [https://pdbe.org/4eo8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4eo8 RCSB], [https://www.ebi.ac.uk/pdbsum/4eo8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4eo8 ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[[https://www.uniprot.org/uniprot/POLG_HCVBK POLG_HCVBK]] Core protein packages viral RNA to form a viral nucleocapsid, and promotes virion budding. Modulates viral translation initiation by interacting with HCV IRES and 40S ribosomal subunit. Also regulates many host cellular functions such as signaling pathways and apoptosis. Prevents the establishment of cellular antiviral state by blocking the interferon-alpha/beta (IFN-alpha/beta) and IFN-gamma signaling pathways and by inducing human STAT1 degradation. Thought to play a role in virus-mediated cell transformation leading to hepatocellular carcinomas. Interacts with, and activates STAT3 leading to cellular transformation. May repress the promoter of p53, and sequester CREB3 and SP110 isoform 3/Sp110b in the cytoplasm. Also represses cell cycle negative regulating factor CDKN1A, thereby interrupting an important check point of normal cell cycle regulation. Targets transcription factors involved in the regulation of inflammatory responses and in the immune response: suppresses NK-kappaB activation, and activates AP-1. Could mediate apoptotic pathways through association with TNF-type receptors TNFRSF1A and LTBR, although its effect on death receptor-induced apoptosis remains controversial. Enhances TRAIL mediated apoptosis, suggesting that it might play a role in immune-mediated liver cell injury. Seric core protein is able to bind C1QR1 at the T-cell surface, resulting in down-regulation of T-lymphocytes proliferation. May transactivate human MYC, Rous sarcoma virus LTR, and SV40 promoters. May suppress the human FOS and HIV-1 LTR activity. Alters lipid metabolism by interacting with hepatocellular proteins involved in lipid accumulation and storage. Core protein induces up-regulation of FAS promoter activity, and thereby probably contributes to the increased triglyceride accumulation in hepatocytes (steatosis) (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> E1 and E2 glycoproteins form a heterodimer that is involved in virus attachment to the host cell, virion internalization through clathrin-dependent endocytosis and fusion with host membrane. E1/E2 heterodimer binds to human LDLR, CD81 and SCARB1/SR-BI receptors, but this binding is not sufficient for infection, some additional liver specific cofactors may be needed. The fusion function may possibly be carried by E1. E2 inhibits human EIF2AK2/PKR activation, preventing the establishment of an antiviral state. E2 is a viral ligand for CD209/DC-SIGN and CLEC4M/DC-SIGNR, which are respectively found on dendritic cells (DCs), and on liver sinusoidal endothelial cells and macrophage-like cells of lymph node sinuses. These interactions allow capture of circulating HCV particles by these cells and subsequent transmission to permissive cells. DCs act as sentinels in various tissues where they entrap pathogens and convey them to local lymphoid tissue or lymph node for establishment of immunity. Capture of circulating HCV particles by these SIGN+ cells may facilitate virus infection of proximal hepatocytes and lymphocyte subpopulations and may be essential for the establishment of persistent infection (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> P7 seems to be a heptameric ion channel protein (viroporin) and is inhibited by the antiviral drug amantadine. Also inhibited by long-alkyl-chain iminosugar derivatives. Essential for infectivity (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> Protease NS2-3 is a cysteine protease responsible for the autocatalytic cleavage of NS2-NS3. Seems to undergo self-inactivation following maturation (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS3 displays three enzymatic activities: serine protease, NTPase and RNA helicase. NS3 serine protease, in association with NS4A, is responsible for the cleavages of NS3-NS4A, NS4A-NS4B, NS4B-NS5A and NS5A-NS5B. NS3/NS4A complex also prevents phosphorylation of human IRF3, thus preventing the establishment of dsRNA induced antiviral state. NS3 RNA helicase binds to RNA and unwinds dsRNA in the 3' to 5' direction, and likely RNA stable secondary structure in the template strand. Cleaves and inhibits the host antiviral protein MAVS (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS4B induces a specific membrane alteration that serves as a scaffold for the virus replication complex. This membrane alteration gives rise to the so-called ER-derived membranous web that contains the replication complex (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS5A is a component of the replication complex involved in RNA-binding. Its interaction with Human VAPB may target the viral replication complex to vesicles. Down-regulates viral IRES translation initiation. Mediates interferon resistance, presumably by interacting with and inhibiting human EIF2AK2/PKR. Seems to inhibit apoptosis by interacting with BIN1 and FKBP8. The hyperphosphorylated form of NS5A is an inhibitor of viral replication (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS5B is a RNA-dependent RNA polymerase that plays an essential role in the virus replication (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref>	+	[https://www.uniprot.org/uniprot/POLG_HCVBK POLG_HCVBK] Core protein packages viral RNA to form a viral nucleocapsid, and promotes virion budding. Modulates viral translation initiation by interacting with HCV IRES and 40S ribosomal subunit. Also regulates many host cellular functions such as signaling pathways and apoptosis. Prevents the establishment of cellular antiviral state by blocking the interferon-alpha/beta (IFN-alpha/beta) and IFN-gamma signaling pathways and by inducing human STAT1 degradation. Thought to play a role in virus-mediated cell transformation leading to hepatocellular carcinomas. Interacts with, and activates STAT3 leading to cellular transformation. May repress the promoter of p53, and sequester CREB3 and SP110 isoform 3/Sp110b in the cytoplasm. Also represses cell cycle negative regulating factor CDKN1A, thereby interrupting an important check point of normal cell cycle regulation. Targets transcription factors involved in the regulation of inflammatory responses and in the immune response: suppresses NK-kappaB activation, and activates AP-1. Could mediate apoptotic pathways through association with TNF-type receptors TNFRSF1A and LTBR, although its effect on death receptor-induced apoptosis remains controversial. Enhances TRAIL mediated apoptosis, suggesting that it might play a role in immune-mediated liver cell injury. Seric core protein is able to bind C1QR1 at the T-cell surface, resulting in down-regulation of T-lymphocytes proliferation. May transactivate human MYC, Rous sarcoma virus LTR, and SV40 promoters. May suppress the human FOS and HIV-1 LTR activity. Alters lipid metabolism by interacting with hepatocellular proteins involved in lipid accumulation and storage. Core protein induces up-regulation of FAS promoter activity, and thereby probably contributes to the increased triglyceride accumulation in hepatocytes (steatosis) (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> E1 and E2 glycoproteins form a heterodimer that is involved in virus attachment to the host cell, virion internalization through clathrin-dependent endocytosis and fusion with host membrane. E1/E2 heterodimer binds to human LDLR, CD81 and SCARB1/SR-BI receptors, but this binding is not sufficient for infection, some additional liver specific cofactors may be needed. The fusion function may possibly be carried by E1. E2 inhibits human EIF2AK2/PKR activation, preventing the establishment of an antiviral state. E2 is a viral ligand for CD209/DC-SIGN and CLEC4M/DC-SIGNR, which are respectively found on dendritic cells (DCs), and on liver sinusoidal endothelial cells and macrophage-like cells of lymph node sinuses. These interactions allow capture of circulating HCV particles by these cells and subsequent transmission to permissive cells. DCs act as sentinels in various tissues where they entrap pathogens and convey them to local lymphoid tissue or lymph node for establishment of immunity. Capture of circulating HCV particles by these SIGN+ cells may facilitate virus infection of proximal hepatocytes and lymphocyte subpopulations and may be essential for the establishment of persistent infection (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> P7 seems to be a heptameric ion channel protein (viroporin) and is inhibited by the antiviral drug amantadine. Also inhibited by long-alkyl-chain iminosugar derivatives. Essential for infectivity (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> Protease NS2-3 is a cysteine protease responsible for the autocatalytic cleavage of NS2-NS3. Seems to undergo self-inactivation following maturation (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS3 displays three enzymatic activities: serine protease, NTPase and RNA helicase. NS3 serine protease, in association with NS4A, is responsible for the cleavages of NS3-NS4A, NS4A-NS4B, NS4B-NS5A and NS5A-NS5B. NS3/NS4A complex also prevents phosphorylation of human IRF3, thus preventing the establishment of dsRNA induced antiviral state. NS3 RNA helicase binds to RNA and unwinds dsRNA in the 3' to 5' direction, and likely RNA stable secondary structure in the template strand. Cleaves and inhibits the host antiviral protein MAVS (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS4B induces a specific membrane alteration that serves as a scaffold for the virus replication complex. This membrane alteration gives rise to the so-called ER-derived membranous web that contains the replication complex (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS5A is a component of the replication complex involved in RNA-binding. Its interaction with Human VAPB may target the viral replication complex to vesicles. Down-regulates viral IRES translation initiation. Mediates interferon resistance, presumably by interacting with and inhibiting human EIF2AK2/PKR. Seems to inhibit apoptosis by interacting with BIN1 and FKBP8. The hyperphosphorylated form of NS5A is an inhibitor of viral replication (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS5B is a RNA-dependent RNA polymerase that plays an essential role in the virus replication (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref>
-	~~<div style="background-color:#fffaf0;">~~	+
-	~~== Publication Abstract from PubMed ==~~	+
-	The use of a tri-substituted acylhydrazine as an isostere of a tertiary amide was explored in a series of HCV NS5B thumb site II inhibitors. Direct replacement generated an analog with similar conformational and physicochemical properties. The series was extended to produce compounds with potent binding affinities and encouraging levels of cellular potency.	+
-		+
-	Tri-substituted acylhydrazines as tertiary amide bioisosteres: HCV NS5B polymerase inhibitors.,Canales E, Carlson JS, Appleby T, Fenaux M, Lee J, Tian Y, Tirunagari N, Wong M, Watkins WJ Bioorg Med Chem Lett. 2012 Jul 1;22(13):4288-92. Epub 2012 May 17. PMID:22664130<ref>PMID:22664130</ref>	+
-		+
-	~~From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>~~	+
-	~~</div>~~	+
-	~~<div class="pdbe-citations 4eo8" style="background-color:#fffaf0;"></div~~>	+

	==See Also==		==See Also==

OCA at 07:20, 28 September 2022

2022-09-28T07:20:30Z

←Older revision		Revision as of 07:20, 28 September 2022
Line 1:		Line 1:

	==HCV NS5B polymerase inhibitors: Tri-substituted acylhydrazines as tertiary amide bioisosteres==		==HCV NS5B polymerase inhibitors: Tri-substituted acylhydrazines as tertiary amide bioisosteres==
-	<StructureSection load='4eo8' size='340' side='right' caption='[[4eo8]], [[Resolution\|resolution]] 1.80Å' scene=''>	+	<StructureSection load='4eo8' size='340' side='right'caption='[[4eo8]], [[Resolution\|resolution]] 1.80Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[4eo8]] is a 2 chain structure with sequence from [~~http~~://en.wikipedia.org/wiki/~~Hcv Hcv~~]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=4EO8 FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[4eo8]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Hepatitis_C_virus_(isolate_BK) Hepatitis C virus (isolate BK)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4EO8 FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=0S3:5-(3,3-DIMETHYLBUT-1-YN-1-YL)-3-{2,2-DIMETHYL-1-[(TRANS-4-METHYLCYCLOHEXYL)CARBONYL]HYDRAZINYL}THIOPHENE-2-CARBOXYLIC+ACID'>0S3</scene~~></td></tr>~~	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=0S3:5-(3,3-DIMETHYLBUT-1-YN-1-YL)-3-{2,2-DIMETHYL-1-[(TRANS-4-METHYLCYCLOHEXYL)CARBONYL]HYDRAZINYL}THIOPHENE-2-CARBOXYLIC+ACID'>0S3</scene></td></tr>
-	~~<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4eo6\|4eo6]]</td></tr>~~	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4eo8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eo8 OCA], [https://pdbe.org/4eo8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4eo8 RCSB], [https://www.ebi.ac.uk/pdbsum/4eo8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4eo8 ProSAT]</span></td></tr>
-	~~<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">NS5B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=11105 HCV])</td></tr>~~	+
-	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA-directed_RNA_polymerase RNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.48 2.7.7.48] </span></td></tr>	+
-	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=4eo8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eo8 OCA], [~~http~~://pdbe.org/4eo8 PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=4eo8 RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/4eo8 PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=4eo8 ProSAT]</span></td></tr>	+
	</table>		</table>
	== Function ==		== Function ==
-	[[~~http~~://www.uniprot.org/uniprot/POLG_HCVBK POLG_HCVBK]] Core protein packages viral RNA to form a viral nucleocapsid, and promotes virion budding. Modulates viral translation initiation by interacting with HCV IRES and 40S ribosomal subunit. Also regulates many host cellular functions such as signaling pathways and apoptosis. Prevents the establishment of cellular antiviral state by blocking the interferon-alpha/beta (IFN-alpha/beta) and IFN-gamma signaling pathways and by inducing human STAT1 degradation. Thought to play a role in virus-mediated cell transformation leading to hepatocellular carcinomas. Interacts with, and activates STAT3 leading to cellular transformation. May repress the promoter of p53, and sequester CREB3 and SP110 isoform 3/Sp110b in the cytoplasm. Also represses cell cycle negative regulating factor CDKN1A, thereby interrupting an important check point of normal cell cycle regulation. Targets transcription factors involved in the regulation of inflammatory responses and in the immune response: suppresses NK-kappaB activation, and activates AP-1. Could mediate apoptotic pathways through association with TNF-type receptors TNFRSF1A and LTBR, although its effect on death receptor-induced apoptosis remains controversial. Enhances TRAIL mediated apoptosis, suggesting that it might play a role in immune-mediated liver cell injury. Seric core protein is able to bind C1QR1 at the T-cell surface, resulting in down-regulation of T-lymphocytes proliferation. May transactivate human MYC, Rous sarcoma virus LTR, and SV40 promoters. May suppress the human FOS and HIV-1 LTR activity. Alters lipid metabolism by interacting with hepatocellular proteins involved in lipid accumulation and storage. Core protein induces up-regulation of FAS promoter activity, and thereby probably contributes to the increased triglyceride accumulation in hepatocytes (steatosis) (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> E1 and E2 glycoproteins form a heterodimer that is involved in virus attachment to the host cell, virion internalization through clathrin-dependent endocytosis and fusion with host membrane. E1/E2 heterodimer binds to human LDLR, CD81 and SCARB1/SR-BI receptors, but this binding is not sufficient for infection, some additional liver specific cofactors may be needed. The fusion function may possibly be carried by E1. E2 inhibits human EIF2AK2/PKR activation, preventing the establishment of an antiviral state. E2 is a viral ligand for CD209/DC-SIGN and CLEC4M/DC-SIGNR, which are respectively found on dendritic cells (DCs), and on liver sinusoidal endothelial cells and macrophage-like cells of lymph node sinuses. These interactions allow capture of circulating HCV particles by these cells and subsequent transmission to permissive cells. DCs act as sentinels in various tissues where they entrap pathogens and convey them to local lymphoid tissue or lymph node for establishment of immunity. Capture of circulating HCV particles by these SIGN+ cells may facilitate virus infection of proximal hepatocytes and lymphocyte subpopulations and may be essential for the establishment of persistent infection (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> P7 seems to be a heptameric ion channel protein (viroporin) and is inhibited by the antiviral drug amantadine. Also inhibited by long-alkyl-chain iminosugar derivatives. Essential for infectivity (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> Protease NS2-3 is a cysteine protease responsible for the autocatalytic cleavage of NS2-NS3. Seems to undergo self-inactivation following maturation (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS3 displays three enzymatic activities: serine protease, NTPase and RNA helicase. NS3 serine protease, in association with NS4A, is responsible for the cleavages of NS3-NS4A, NS4A-NS4B, NS4B-NS5A and NS5A-NS5B. NS3/NS4A complex also prevents phosphorylation of human IRF3, thus preventing the establishment of dsRNA induced antiviral state. NS3 RNA helicase binds to RNA and unwinds dsRNA in the 3' to 5' direction, and likely RNA stable secondary structure in the template strand. Cleaves and inhibits the host antiviral protein MAVS (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS4B induces a specific membrane alteration that serves as a scaffold for the virus replication complex. This membrane alteration gives rise to the so-called ER-derived membranous web that contains the replication complex (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS5A is a component of the replication complex involved in RNA-binding. Its interaction with Human VAPB may target the viral replication complex to vesicles. Down-regulates viral IRES translation initiation. Mediates interferon resistance, presumably by interacting with and inhibiting human EIF2AK2/PKR. Seems to inhibit apoptosis by interacting with BIN1 and FKBP8. The hyperphosphorylated form of NS5A is an inhibitor of viral replication (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS5B is a RNA-dependent RNA polymerase that plays an essential role in the virus replication (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref>	+	[[https://www.uniprot.org/uniprot/POLG_HCVBK POLG_HCVBK]] Core protein packages viral RNA to form a viral nucleocapsid, and promotes virion budding. Modulates viral translation initiation by interacting with HCV IRES and 40S ribosomal subunit. Also regulates many host cellular functions such as signaling pathways and apoptosis. Prevents the establishment of cellular antiviral state by blocking the interferon-alpha/beta (IFN-alpha/beta) and IFN-gamma signaling pathways and by inducing human STAT1 degradation. Thought to play a role in virus-mediated cell transformation leading to hepatocellular carcinomas. Interacts with, and activates STAT3 leading to cellular transformation. May repress the promoter of p53, and sequester CREB3 and SP110 isoform 3/Sp110b in the cytoplasm. Also represses cell cycle negative regulating factor CDKN1A, thereby interrupting an important check point of normal cell cycle regulation. Targets transcription factors involved in the regulation of inflammatory responses and in the immune response: suppresses NK-kappaB activation, and activates AP-1. Could mediate apoptotic pathways through association with TNF-type receptors TNFRSF1A and LTBR, although its effect on death receptor-induced apoptosis remains controversial. Enhances TRAIL mediated apoptosis, suggesting that it might play a role in immune-mediated liver cell injury. Seric core protein is able to bind C1QR1 at the T-cell surface, resulting in down-regulation of T-lymphocytes proliferation. May transactivate human MYC, Rous sarcoma virus LTR, and SV40 promoters. May suppress the human FOS and HIV-1 LTR activity. Alters lipid metabolism by interacting with hepatocellular proteins involved in lipid accumulation and storage. Core protein induces up-regulation of FAS promoter activity, and thereby probably contributes to the increased triglyceride accumulation in hepatocytes (steatosis) (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> E1 and E2 glycoproteins form a heterodimer that is involved in virus attachment to the host cell, virion internalization through clathrin-dependent endocytosis and fusion with host membrane. E1/E2 heterodimer binds to human LDLR, CD81 and SCARB1/SR-BI receptors, but this binding is not sufficient for infection, some additional liver specific cofactors may be needed. The fusion function may possibly be carried by E1. E2 inhibits human EIF2AK2/PKR activation, preventing the establishment of an antiviral state. E2 is a viral ligand for CD209/DC-SIGN and CLEC4M/DC-SIGNR, which are respectively found on dendritic cells (DCs), and on liver sinusoidal endothelial cells and macrophage-like cells of lymph node sinuses. These interactions allow capture of circulating HCV particles by these cells and subsequent transmission to permissive cells. DCs act as sentinels in various tissues where they entrap pathogens and convey them to local lymphoid tissue or lymph node for establishment of immunity. Capture of circulating HCV particles by these SIGN+ cells may facilitate virus infection of proximal hepatocytes and lymphocyte subpopulations and may be essential for the establishment of persistent infection (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> P7 seems to be a heptameric ion channel protein (viroporin) and is inhibited by the antiviral drug amantadine. Also inhibited by long-alkyl-chain iminosugar derivatives. Essential for infectivity (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> Protease NS2-3 is a cysteine protease responsible for the autocatalytic cleavage of NS2-NS3. Seems to undergo self-inactivation following maturation (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS3 displays three enzymatic activities: serine protease, NTPase and RNA helicase. NS3 serine protease, in association with NS4A, is responsible for the cleavages of NS3-NS4A, NS4A-NS4B, NS4B-NS5A and NS5A-NS5B. NS3/NS4A complex also prevents phosphorylation of human IRF3, thus preventing the establishment of dsRNA induced antiviral state. NS3 RNA helicase binds to RNA and unwinds dsRNA in the 3' to 5' direction, and likely RNA stable secondary structure in the template strand. Cleaves and inhibits the host antiviral protein MAVS (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS4B induces a specific membrane alteration that serves as a scaffold for the virus replication complex. This membrane alteration gives rise to the so-called ER-derived membranous web that contains the replication complex (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS5A is a component of the replication complex involved in RNA-binding. Its interaction with Human VAPB may target the viral replication complex to vesicles. Down-regulates viral IRES translation initiation. Mediates interferon resistance, presumably by interacting with and inhibiting human EIF2AK2/PKR. Seems to inhibit apoptosis by interacting with BIN1 and FKBP8. The hyperphosphorylated form of NS5A is an inhibitor of viral replication (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS5B is a RNA-dependent RNA polymerase that plays an essential role in the virus replication (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
Line 23:		Line 20:

	==See Also==		==See Also==
-	*[[RNA polymerase\|RNA polymerase]]	+	*[[RNA polymerase 3D structures\|RNA polymerase 3D structures]]
	*[[RNA-directed RNA polymerase\|RNA-directed RNA polymerase]]		*[[RNA-directed RNA polymerase\|RNA-directed RNA polymerase]]
	== References ==		== References ==
Line 29:		Line 26:
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Hcv]]~~	+	[[Category: Large Structures]]
-	~~[[Category: RNA-directed RNA polymerase~~]]	+	[[Category: Appleby TC]]
-	[[Category: Appleby~~, T C~~]]	+	[[Category: Canales E]]
-	[[Category: Canales, E]]	+	[[Category: Watkins WJ]]
-	[[Category: Watkins~~, W J]]~~	+
-	~~[[Category: Ns5b]]~~	+
-	~~[[Category: Polymerase inhibitor]]~~	+
-	~~[[Category: Rna]]~~	+
-	~~[[Category: Rna polymerase]]~~	+
-	~~[[Category: Rna-dependent rna polymerase]]~~	+
-	~~[[Category: Thumb site 2 inhibitor]]~~	+
-	~~[[Category: Transferase-transferase inhibitor complex~~]]	+

OCA at 21:49, 4 August 2016

2016-08-04T21:49:47Z

←Older revision		Revision as of 21:49, 4 August 2016
Line 1:		Line 1:
		+
	==HCV NS5B polymerase inhibitors: Tri-substituted acylhydrazines as tertiary amide bioisosteres==		==HCV NS5B polymerase inhibitors: Tri-substituted acylhydrazines as tertiary amide bioisosteres==
	<StructureSection load='4eo8' size='340' side='right' caption='[[4eo8]], [[Resolution\|resolution]] 1.80Å' scene=''>		<StructureSection load='4eo8' size='340' side='right' caption='[[4eo8]], [[Resolution\|resolution]] 1.80Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[4eo8]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/~~Viruses Viruses~~]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4EO8 FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[4eo8]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Hcv Hcv]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4EO8 FirstGlance]. <br>
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=0S3:5-(3,3-DIMETHYLBUT-1-YN-1-YL)-3-{2,2-DIMETHYL-1-[(TRANS-4-METHYLCYCLOHEXYL)CARBONYL]HYDRAZINYL}THIOPHENE-2-CARBOXYLIC+ACID'>0S3</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=0S3:5-(3,3-DIMETHYLBUT-1-YN-1-YL)-3-{2,2-DIMETHYL-1-[(TRANS-4-METHYLCYCLOHEXYL)CARBONYL]HYDRAZINYL}THIOPHENE-2-CARBOXYLIC+ACID'>0S3</scene></td></tr>
	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4eo6\|4eo6]]</td></tr>		<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4eo6\|4eo6]]</td></tr>
-	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">NS5B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=~~10239 Viruses~~])</td></tr>	+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">NS5B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=11105 HCV])</td></tr>
	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA-directed_RNA_polymerase RNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.48 2.7.7.48] </span></td></tr>		<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA-directed_RNA_polymerase RNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.48 2.7.7.48] </span></td></tr>
-	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4eo8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eo8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4eo8 RCSB], [http://www.ebi.ac.uk/pdbsum/4eo8 PDBsum]</span></td></tr>	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4eo8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eo8 OCA], [http://pdbe.org/4eo8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4eo8 RCSB], [http://www.ebi.ac.uk/pdbsum/4eo8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4eo8 ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
Line 19:		Line 20:
	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>		From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
	</div>		</div>
		+	<div class="pdbe-citations 4eo8" style="background-color:#fffaf0;"></div>

	==See Also==		==See Also==
	*[[RNA polymerase\|RNA polymerase]]		*[[RNA polymerase\|RNA polymerase]]
		+	*[[RNA-directed RNA polymerase\|RNA-directed RNA polymerase]]
	== References ==		== References ==
	<references/>		<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
		+	[[Category: Hcv]]
	[[Category: RNA-directed RNA polymerase]]		[[Category: RNA-directed RNA polymerase]]
-	[[Category: Viruses]]
	[[Category: Appleby, T C]]		[[Category: Appleby, T C]]
	[[Category: Canales, E]]		[[Category: Canales, E]]
	[[Category: Watkins, W J]]		[[Category: Watkins, W J]]
-	[[Category: Hcv]]
	[[Category: Ns5b]]		[[Category: Ns5b]]
	[[Category: Polymerase inhibitor]]		[[Category: Polymerase inhibitor]]

OCA at 13:25, 25 December 2014

2014-12-25T13:25:56Z

←Older revision		Revision as of 13:25, 25 December 2014
Line 3:		Line 3:
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[4eo8]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Viruses Viruses]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4EO8 FirstGlance]. <br>		<table><tr><td colspan='2'>[[4eo8]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Viruses Viruses]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4EO8 FirstGlance]. <br>
-	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=0S3:5-(3,3-DIMETHYLBUT-1-YN-1-YL)-3-{2,2-DIMETHYL-1-[(TRANS-4-METHYLCYCLOHEXYL)CARBONYL]HYDRAZINYL}THIOPHENE-2-CARBOXYLIC+ACID'>0S3</scene><br>	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=0S3:5-(3,3-DIMETHYLBUT-1-YN-1-YL)-3-{2,2-DIMETHYL-1-[(TRANS-4-METHYLCYCLOHEXYL)CARBONYL]HYDRAZINYL}THIOPHENE-2-CARBOXYLIC+ACID'>0S3</scene></td></tr>
-	<tr><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4eo6\|4eo6]]</td></tr>	+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4eo6\|4eo6]]</td></tr>
-	<tr><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">NS5B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10239 Viruses])</td></tr>	+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">NS5B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10239 Viruses])</td></tr>
-	<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA-directed_RNA_polymerase RNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.48 2.7.7.48] </span></td></tr>	+	<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA-directed_RNA_polymerase RNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.48 2.7.7.48] </span></td></tr>
-	<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4eo8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eo8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4eo8 RCSB], [http://www.ebi.ac.uk/pdbsum/4eo8 PDBsum]</span></td></tr>	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4eo8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eo8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4eo8 RCSB], [http://www.ebi.ac.uk/pdbsum/4eo8 PDBsum]</span></td></tr>
-	<table>	+	</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/POLG_HCVBK POLG_HCVBK]] Core protein packages viral RNA to form a viral nucleocapsid, and promotes virion budding. Modulates viral translation initiation by interacting with HCV IRES and 40S ribosomal subunit. Also regulates many host cellular functions such as signaling pathways and apoptosis. Prevents the establishment of cellular antiviral state by blocking the interferon-alpha/beta (IFN-alpha/beta) and IFN-gamma signaling pathways and by inducing human STAT1 degradation. Thought to play a role in virus-mediated cell transformation leading to hepatocellular carcinomas. Interacts with, and activates STAT3 leading to cellular transformation. May repress the promoter of p53, and sequester CREB3 and SP110 isoform 3/Sp110b in the cytoplasm. Also represses cell cycle negative regulating factor CDKN1A, thereby interrupting an important check point of normal cell cycle regulation. Targets transcription factors involved in the regulation of inflammatory responses and in the immune response: suppresses NK-kappaB activation, and activates AP-1. Could mediate apoptotic pathways through association with TNF-type receptors TNFRSF1A and LTBR, although its effect on death receptor-induced apoptosis remains controversial. Enhances TRAIL mediated apoptosis, suggesting that it might play a role in immune-mediated liver cell injury. Seric core protein is able to bind C1QR1 at the T-cell surface, resulting in down-regulation of T-lymphocytes proliferation. May transactivate human MYC, Rous sarcoma virus LTR, and SV40 promoters. May suppress the human FOS and HIV-1 LTR activity. Alters lipid metabolism by interacting with hepatocellular proteins involved in lipid accumulation and storage. Core protein induces up-regulation of FAS promoter activity, and thereby probably contributes to the increased triglyceride accumulation in hepatocytes (steatosis) (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> E1 and E2 glycoproteins form a heterodimer that is involved in virus attachment to the host cell, virion internalization through clathrin-dependent endocytosis and fusion with host membrane. E1/E2 heterodimer binds to human LDLR, CD81 and SCARB1/SR-BI receptors, but this binding is not sufficient for infection, some additional liver specific cofactors may be needed. The fusion function may possibly be carried by E1. E2 inhibits human EIF2AK2/PKR activation, preventing the establishment of an antiviral state. E2 is a viral ligand for CD209/DC-SIGN and CLEC4M/DC-SIGNR, which are respectively found on dendritic cells (DCs), and on liver sinusoidal endothelial cells and macrophage-like cells of lymph node sinuses. These interactions allow capture of circulating HCV particles by these cells and subsequent transmission to permissive cells. DCs act as sentinels in various tissues where they entrap pathogens and convey them to local lymphoid tissue or lymph node for establishment of immunity. Capture of circulating HCV particles by these SIGN+ cells may facilitate virus infection of proximal hepatocytes and lymphocyte subpopulations and may be essential for the establishment of persistent infection (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> P7 seems to be a heptameric ion channel protein (viroporin) and is inhibited by the antiviral drug amantadine. Also inhibited by long-alkyl-chain iminosugar derivatives. Essential for infectivity (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> Protease NS2-3 is a cysteine protease responsible for the autocatalytic cleavage of NS2-NS3. Seems to undergo self-inactivation following maturation (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS3 displays three enzymatic activities: serine protease, NTPase and RNA helicase. NS3 serine protease, in association with NS4A, is responsible for the cleavages of NS3-NS4A, NS4A-NS4B, NS4B-NS5A and NS5A-NS5B. NS3/NS4A complex also prevents phosphorylation of human IRF3, thus preventing the establishment of dsRNA induced antiviral state. NS3 RNA helicase binds to RNA and unwinds dsRNA in the 3' to 5' direction, and likely RNA stable secondary structure in the template strand. Cleaves and inhibits the host antiviral protein MAVS (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS4B induces a specific membrane alteration that serves as a scaffold for the virus replication complex. This membrane alteration gives rise to the so-called ER-derived membranous web that contains the replication complex (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS5A is a component of the replication complex involved in RNA-binding. Its interaction with Human VAPB may target the viral replication complex to vesicles. Down-regulates viral IRES translation initiation. Mediates interferon resistance, presumably by interacting with and inhibiting human EIF2AK2/PKR. Seems to inhibit apoptosis by interacting with BIN1 and FKBP8. The hyperphosphorylated form of NS5A is an inhibitor of viral replication (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref> NS5B is a RNA-dependent RNA polymerase that plays an essential role in the virus replication (By similarity).<ref>PMID:9710605</ref> <ref>PMID:16530520</ref> <ref>PMID:17188392</ref>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
Line 26:		Line 28:
	[[Category: RNA-directed RNA polymerase]]		[[Category: RNA-directed RNA polymerase]]
	[[Category: Viruses]]		[[Category: Viruses]]
-	[[Category: Appleby, T C.]]	+	[[Category: Appleby, T C]]
-	[[Category: Canales, E.]]	+	[[Category: Canales, E]]
-	[[Category: Watkins, W J.]]	+	[[Category: Watkins, W J]]
	[[Category: Hcv]]		[[Category: Hcv]]
	[[Category: Ns5b]]		[[Category: Ns5b]]

OCA at 07:46, 5 June 2014

2014-06-05T07:46:44Z

←Older revision		Revision as of 07:46, 5 June 2014
Line 1:		Line 1:
-	[[~~Image:~~4eo8.~~jpg~~\|~~left~~\|~~200px~~]]	+	==HCV NS5B polymerase inhibitors: Tri-substituted acylhydrazines as tertiary amide bioisosteres==
		+	<StructureSection load='4eo8' size='340' side='right' caption='[[4eo8]], [[Resolution\|resolution]] 1.80Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[4eo8]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Viruses Viruses]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4EO8 FirstGlance]. <br>
		+	</td></tr><tr><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=0S3:5-(3,3-DIMETHYLBUT-1-YN-1-YL)-3-{2,2-DIMETHYL-1-[(TRANS-4-METHYLCYCLOHEXYL)CARBONYL]HYDRAZINYL}THIOPHENE-2-CARBOXYLIC+ACID'>0S3</scene><br>
		+	<tr><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4eo6\|4eo6]]</td></tr>
		+	<tr><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">NS5B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10239 Viruses])</td></tr>
		+	<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA-directed_RNA_polymerase RNA-directed RNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.48 2.7.7.48] </span></td></tr>
		+	<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4eo8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4eo8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4eo8 RCSB], [http://www.ebi.ac.uk/pdbsum/4eo8 PDBsum]</span></td></tr>
		+	<table>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	The use of a tri-substituted acylhydrazine as an isostere of a tertiary amide was explored in a series of HCV NS5B thumb site II inhibitors. Direct replacement generated an analog with similar conformational and physicochemical properties. The series was extended to produce compounds with potent binding affinities and encouraging levels of cellular potency.

-	~~{{STRUCTURE_4eo8\| PDB=4eo8 \| SCENE= }}~~	+	Tri-substituted acylhydrazines as tertiary amide bioisosteres: HCV NS5B polymerase inhibitors.,Canales E, Carlson JS, Appleby T, Fenaux M, Lee J, Tian Y, Tirunagari N, Wong M, Watkins WJ Bioorg Med Chem Lett. 2012 Jul 1;22(13):4288-92. Epub 2012 May 17. PMID:22664130<ref>PMID:22664130</ref>

-	~~===HCV NS5B polymerase inhibitors: Tri-substituted acylhydrazines as tertiary amide bioisosteres===~~	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
		+	</div>

-	~~{{ABSTRACT_PUBMED_22664130}}~~	+	==See Also==
-		+	*[[RNA polymerase\|RNA polymerase]]
-	==~~About this Structure~~==	+	== References ==
-	[[~~4eo8~~]] ~~is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Viruses Viruses]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA].~~	+	<references/>
-		+	__TOC__
-	==~~Reference~~==	+	</StructureSection>
-	<~~ref group="xtra">PMID:022664130<~~/~~ref~~><~~references group="xtra"~~/>	+
	[[Category: RNA-directed RNA polymerase]]		[[Category: RNA-directed RNA polymerase]]
	[[Category: Viruses]]		[[Category: Viruses]]

OCA at 05:49, 27 June 2012

2012-06-27T05:49:51Z

←Older revision		Revision as of 05:49, 27 June 2012
Line 1:		Line 1:
-	~~'''Unreleased structure'''~~	+	[[Image:4eo8.jpg\|left\|200px]]

-	~~The entry~~ 4eo8 ~~is ON HOLD~~	+	{{STRUCTURE_4eo8\| PDB=4eo8 \| SCENE= }}

-	~~Authors~~: ~~Appleby, T.C., Canales, E., Watkins, W.J.~~	+	===HCV NS5B polymerase inhibitors: Tri-substituted acylhydrazines as tertiary amide bioisosteres===

-	~~Description~~: ~~HCV NS5B~~ polymerase ~~inhibitors~~: ~~Tri~~-~~substituted acylhydrazines as tertiary amide bioisosteres~~	+	{{ABSTRACT_PUBMED_22664130}}
		+
		+	==About this Structure==
		+	[[4eo8]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Viruses Viruses]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4EO8 OCA].
		+
		+	==Reference==
		+	<ref group="xtra">PMID:022664130</ref><references group="xtra"/>
		+	[[Category: RNA-directed RNA polymerase]]
		+	[[Category: Viruses]]
		+	[[Category: Appleby, T C.]]
		+	[[Category: Canales, E.]]
		+	[[Category: Watkins, W J.]]
		+	[[Category: Hcv]]
		+	[[Category: Ns5b]]
		+	[[Category: Polymerase inhibitor]]
		+	[[Category: Rna]]
		+	[[Category: Rna polymerase]]
		+	[[Category: Rna-dependent rna polymerase]]
		+	[[Category: Thumb site 2 inhibitor]]
		+	[[Category: Transferase-transferase inhibitor complex]]

OCA: Protected "4eo8" [edit=sysop:move=sysop]

2012-04-25T08:55:18Z

Protected "4eo8" [edit=sysop:move=sysop]

←Older revision

Revision as of 08:55, 25 April 2012

OCA: New page: '''Unreleased structure''' The entry 4eo8 is ON HOLD Authors: Appleby, T.C., Canales, E., Watkins, W.J. Description: HCV NS5B polymerase inhibitors: Tri-substituted acylhydrazines as t...

2012-04-25T08:55:17Z

New page: '''Unreleased structure''' The entry 4eo8 is ON HOLD Authors: Appleby, T.C., Canales, E., Watkins, W.J. Description: HCV NS5B polymerase inhibitors: Tri-substituted acylhydrazines as t...

New page

'''Unreleased structure'''

The entry 4eo8 is ON HOLD

Authors: Appleby, T.C., Canales, E., Watkins, W.J.

Description: HCV NS5B polymerase inhibitors: Tri-substituted acylhydrazines as tertiary amide bioisosteres