4u1h - Revision history

OCA at 12:26, 20 December 2023

OCA — Wed, 20 Dec 2023 12:26:10 GMT

←Older revision		Revision as of 12:26, 20 December 2023
Line 4:		Line 4:
	== Structural highlights ==		== Structural highlights ==
	<table><tr><td colspan='2'>[[4u1h]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4U1H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4U1H FirstGlance]. <br>		<table><tr><td colspan='2'>[[4u1h]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4U1H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4U1H FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</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]] 1.59Å</td></tr>
		+	<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</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=4u1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u1h OCA], [https://pdbe.org/4u1h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4u1h RCSB], [https://www.ebi.ac.uk/pdbsum/4u1h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4u1h 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=4u1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u1h OCA], [https://pdbe.org/4u1h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4u1h RCSB], [https://www.ebi.ac.uk/pdbsum/4u1h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4u1h ProSAT]</span></td></tr>
	</table>		</table>

OCA at 07:56, 22 March 2023

OCA — Wed, 22 Mar 2023 07:56:51 GMT

←Older revision		Revision as of 07:56, 22 March 2023
Line 3:		Line 3:
	<StructureSection load='4u1h' size='340' side='right'caption='[[4u1h]], [[Resolution\|resolution]] 1.59Å' scene=''>		<StructureSection load='4u1h' size='340' side='right'caption='[[4u1h]], [[Resolution\|resolution]] 1.59Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[4u1h]] is a 3 chain structure with sequence from [~~http~~://en.wikipedia.org/wiki/Human ~~Human~~]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4U1H OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=4U1H FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[4u1h]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4U1H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4U1H FirstGlance]. <br>
-	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>~~</td></tr>~~	+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
-	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4u1i\|4u1i]], [[4u1j\|4u1j]], [[4u1k\|4u1k]], [[4u1l\|4u1l]], [[4u1m\|4u1m]], [[4u1n\|4u1n]]</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=4u1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u1h OCA], [https://pdbe.org/4u1h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4u1h RCSB], [https://www.ebi.ac.uk/pdbsum/4u1h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4u1h ProSAT]</span></td></tr>
-	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">HLA-B, HLAB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), B2M, CDABP0092, HDCMA22P ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=4u1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u1h OCA], [~~http~~://pdbe.org/4u1h PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=4u1h RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/4u1h PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=4u1h ProSAT]</span></td></tr>	+
	</table>		</table>
	== Disease ==		== Disease ==
-	[~~[http~~://www.uniprot.org/uniprot/~~B2MG_HUMAN B2MG_HUMAN~~]~~] Defects in B2M are the cause~~ of ~~hypercatabolic hypoproteinemia (HYCATHYP) [MIM~~:~~[http://omim~~.~~org/~~entry~~/241600 241600]]~~. ~~Affected individuals show marked reduction in serum concentrations of immunoglobulin and albumin, probably due~~ to ~~rapid degradation~~.<ref>PMID:~~16549777~~</ref> ~~Note=Beta~~-2-~~microglobulin may adopt the fibrillar configuration~~ of ~~amyloid~~ in ~~certain pathologic states~~. The ~~capacity~~ to ~~assemble into amyloid fibrils is concentration dependent. Persistently high beta(2)-microglobulin serum levels lead to amyloidosis~~ in ~~patients on long-term hemodialysis~~.<ref>PMID:~~3532124~~</ref> <ref>PMID:~~1336137~~</ref> ~~<ref>PMID~~:~~7554280</ref> <ref>PMID~~:~~4586824</ref> <ref>PMID~~:~~8084451<~~/~~ref> <ref>PMID:12119416<~~/~~ref> <ref>PMID:12796775<~~/~~ref> <ref>PMID:16901902<~~/~~ref>~~ <ref>PMID:~~16491088</ref> <ref>PMID:17646174</ref> <ref>PMID:18835253</ref> <ref>PMID:18395224~~</ref> <ref>PMID:~~19284997~~</ref>	+	[https://www.uniprot.org/uniprot/HLAB_HUMAN HLAB_HUMAN] Prediction of allopurinol toxicity;NON RARE IN EUROPE: Ankylosing spondylitis;Prediction of flucloxacilline toxicity;Giant cell arteritis;Takayasu arteritis;Reactive arthritis;Behcet disease;Stevens-Johnson syndrome;Prediction of phenytoin or carbamazepine toxicity;Pulmonary arterial hypertension associated with connective tissue disease;Prediction of abacavir toxicity. Disease susceptibility is associated with variants affecting the gene represented in this entry. Increased susceptibility to Stevens-Johnson syndrome is conferred by allele B15:02.<ref>PMID:15057820</ref> Disease susceptibility is associated with variants affecting the gene represented in this entry. A restricted number of HLA-B27 subtypes can be associated with ankylosing spondylitis and other B27-related diseases, and an elevated frequency of the B27:02 allele in ankylosing spondylitis patients is identified. The allele B27:07 seems to have a protective role in some populations because it was found only in the healthy controls.<ref>PMID:15603872</ref> There is evidence that HLA-B51 is associated with susceptibility to Behcet disease (BD). However, it is not certain whether HLA-B51 itself or a closely linked gene is responsible for susceptibility. The world distribution of HLA-B51 in healthy people corresponds to the global distribution of BD; in Southern hemisphere countries (Africa, South Pacific, etc.) and in some parts of Europe, the prevalence of HLA-B51 in healthy people is low or null, corresponding to a low prevalence of BD. The wide variation that exists in the relative risk of HLA-B51 would support other nongenetic risk factors.<ref>PMID:23291587</ref> The presence of allele B57:01 is associated with increased susceptibility to abacavir hypersensitivity [MIM:[https://omim.org/entry/142830 142830] in HIV-1 patients.<ref>PMID:11888582</ref> Allele group B08 is associated with increased susceptibility to rheumatoid arthritis, where affected individuals have antibodies to cyclic citrullinated peptide (anti-CCP-positive rheumatoid arthritis).<ref>PMID:22286218</ref>
	== Function ==		== Function ==
-	[~~[http~~://www.uniprot.org/uniprot/~~1B07_HUMAN 1B07_HUMAN~~]~~] Involved in~~ the ~~presentation~~ of ~~foreign~~ antigens to the ~~immune system~~. ~~[[http~~://~~www~~.~~uniprot~~.~~org~~/~~uniprot~~/~~B2MG_HUMAN B2MG_HUMAN]] Component~~ of the ~~class I major histocompatibility~~ complex (~~MHC~~). ~~Involved~~ in the ~~presentation~~ of peptide ~~antigens~~ to the ~~immune system~~.	+	[https://www.uniprot.org/uniprot/HLAB_HUMAN HLAB_HUMAN] Antigen-presenting major histocompatibility complex class I (MHCI) molecule. In complex with B2M/beta 2 microglobulin displays primarily viral and tumor-derived peptides on antigen-presenting cells for recognition by alpha-beta T cell receptor (TCR) on HLA-B-restricted CD8-positive T cells, guiding antigen-specific T cell immune response to eliminate infected or transformed cells (PubMed:25808313, PubMed:29531227, PubMed:9620674, PubMed:23209413). May also present self-peptides derived from the signal sequence of secreted or membrane proteins, although T cells specific for these peptides are usually inactivated to prevent autoreactivity (PubMed:7743181, PubMed:18991276). Both the peptide and the MHC molecule are recognized by TCR, the peptide is responsible for the fine specificity of antigen recognition and MHC residues account for the MHC restriction of T cells (PubMed:29531227, PubMed:9620674, PubMed:24600035). Typically presents intracellular peptide antigens of 8 to 13 amino acids that arise from cytosolic proteolysis via constitutive proteasome and IFNG-induced immunoproteasome (PubMed:23209413). Can bind different peptides containing allele-specific binding motifs, which are mainly defined by anchor residues at position 2 and 9 (PubMed:25808313, PubMed:29531227).<ref>PMID:18991276</ref> <ref>PMID:23209413</ref> <ref>PMID:24600035</ref> <ref>PMID:25808313</ref> <ref>PMID:29531227</ref> <ref>PMID:7743181</ref> <ref>PMID:9620674</ref> Allele B07:02: Displays peptides sharing a common signature motif, namely a Pro residue at position 2 and mainly a Leu anchor residue at the C-terminus (PubMed:7743181). Presents a long peptide (APRGPHGGAASGL) derived from the cancer-testis antigen CTAG1A/NY-ESO-1, eliciting a polyclonal CD8-positive T cell response against tumor cells (PubMed:29531227). Presents viral epitopes derived from HIV-1 gag-pol (TPQDLNTML) and Nef (RPQVPLRPM) (PubMed:25808313). Presents an immunodominant epitope derived from SARS-CoV-2 N/nucleoprotein (SPRWYFYYL) (PubMed:32887977). Displays self-peptides including a peptide derived from the signal sequence of HLA-DPB1 (APRTVALTA) (PubMed:7743181).<ref>PMID:25808313</ref> <ref>PMID:29531227</ref> <ref>PMID:32887977</ref> <ref>PMID:7743181</ref> Allele B08:01: Presents to CD8-positive T cells viral epitopes derived from EBV/HHV-4 EBNA3 (QAKWRLQTL), eliciting cytotoxic T cell response.<ref>PMID:9620674</ref> Allele B13:02: Presents multiple HIV-1 epitopes derived from gag (RQANFLGKI, GQMREPRGSDI), nef (RQDILDLWI), gag-pol (RQYDQILIE, GQGQWTYQI) and rev (LQLPPLERL), all having in common a Gln residue at position 2 and mainly hydrophobic amino acids Leu, Ile or Val at the C-terminus. Associated with succesful control of HIV-1 infection.<ref>PMID:17251285</ref> Allele B18:01: Preferentially presents octomeric and nonameric peptides sharing a common motif, namely a Glu at position 2 and Phe or Tyr anchor residues at the C-terminus (PubMed:14978097, PubMed:23749632, PubMed:18991276). Presents an EBV/HHV-4 epitope derived from BZLF1 (SELEIKRY) (PubMed:23749632). May present to CD8-positive T cells an antigenic peptide derived from MAGEA3 (MEVDPIGHLY), triggering an anti-tumor immune response (PubMed:12366779). May display a broad repertoire of self-peptides with a preference for peptides derived from RNA-binding proteins (PubMed:14978097).<ref>PMID:12366779</ref> <ref>PMID:14978097</ref> <ref>PMID:18991276</ref> <ref>PMID:23749632</ref> Allele B27:05: Presents to CD8-positive T cells immunodominant viral epitopes derived from HCV POLG (ARMILMTHF), HIV-1 gag (KRWIILGLNK), IAV NP (SRYWAIRTR), SARS-CoV-2 N/nucleoprotein (QRNAPRITF), EBV/HHV-4 EBNA4 (HRCQAIRKK) and EBV/HHV-4 EBNA6 (RRIYDLIEL), confering longterm protection against viral infection (PubMed:19139562, PubMed:18385228, PubMed:15113903, PubMed:9620674, PubMed:32887977). Can present self-peptides derived from cytosolic and nuclear proteins. All peptides carry an Arg at position 2 (PubMed:1922338). The peptide-bound form interacts with NK cell inhibitory receptor KIR3DL1 and inhibits NK cell activation in a peptide-specific way, being particularly sensitive to the nature of the amino acid side chain at position 8 of the antigenic peptide (PubMed:8879234, PubMed:15657948). KIR3DL1 fails to recognize HLA-B27:05 in complex with B2M and EBV/HHV-4 EBNA6 (RRIYDLIEL) peptide, which can lead to increased activation of NK cells during infection (PubMed:15657948). May present an altered repertoire of peptides in the absence of TAP1-TAP2 and TAPBPL (PubMed:9620674).<ref>PMID:15113903</ref> <ref>PMID:15657948</ref> <ref>PMID:18385228</ref> <ref>PMID:19139562</ref> <ref>PMID:1922338</ref> <ref>PMID:8879234</ref> <ref>PMID:9620674</ref> Allele B40:01: Presents immunodominant viral epitopes derived from EBV/HHV-4 LMP2 (IEDPPFNSL) and SARS-CoV-2 N/nucleoprotein (MEVTPSGTWL), triggering memory CD8-positive T cell response (PubMed:18991276, PubMed:32887977). Displays self-peptides sharing a signature motif, namely a Glu at position 2 and a Leu anchor residue at the C-terminus (PubMed:18991276).<ref>PMID:18991276</ref> <ref>PMID:32887977</ref> Allele B41:01: Displays self-peptides sharing a signature motif, namely a Glu at position 2 and Ala or Pro anchor residues at the C-terminus.<ref>PMID:18991276</ref> Allele B44:02: Presents immunodominant viral epitopes derived from EBV/HHV-4 EBNA4 (VEITPYKPTW) and EBNA6 (AEGGVGWRHW, EENLLDFVRF), triggering memory CD8-positive T cell response (PubMed:9620674, PubMed:18991276). Displays self-peptides sharing a signature motif, namely a Glu at position 2 and Phe, Tyr or Trp anchor residues at the C-terminus (PubMed:18991276).<ref>PMID:18991276</ref> <ref>PMID:9620674</ref> Allele B45:01: Displays self-peptides sharing a signature motif, namely a Glu at position 2 and Ala or Pro anchor residues at the C-terminus.<ref>PMID:18991276</ref> Allele B46:01: Preferentially presents nonameric peptides sharing a signature motif, namely Ala and Leu at position 2 and Tyr, Phe, Leu, or Met anchor residues at the C-terminus. The peptide-bound form interacts with KIR2DL3 and inhibits NK cell cytotoxic response in a peptide-specific way.<ref>PMID:28514659</ref> Allele B47:01: Displays self-peptides sharing a signature motif, namely an Asp at position 2 and Leu or Met anchor residues at the C-terminus.<ref>PMID:18991276</ref> Allele B49:01: Displays self-peptides sharing a signature motif, namely a Glu at position 2 and Ile or Val anchor residues at the C-terminus.<ref>PMID:18991276</ref> Allele B50:01: Displays self-peptides sharing a signature motif, namely a Glu at position 2 and Ala or Pro anchor residues at the C-terminus.<ref>PMID:18991276</ref> Allele B51:01: Presents an octomeric HIV-1 epitope derived from gag-pol (TAFTIPSI) to the public TRAV17/TRBV7-3 TCR clonotype, strongly suppressing HIV-1 replication.<ref>PMID:24600035</ref> Allele B54:01: Displays peptides sharing a common signature motif, namely a Pro residue at position 2 and Ala anchor residue at the C-terminus.<ref>PMID:7743181</ref> Allele B55:01: Displays peptides sharing a common signature motif, namely a Pro residue at position 2 and Ala anchor residue at the C-terminus.<ref>PMID:7743181</ref> Allele B56:01: Displays peptides sharing a common signature motif, namely a Pro residue at position 2 and Ala anchor residue at the C-terminus.<ref>PMID:7743181</ref> Allele B57:01: The peptide-bound form recognizes KIR3DL1 and inhibits NK cell cytotoxic response.<ref>PMID:22020283</ref> <ref>PMID:25480565</ref> Allele B67:01: Displays peptides sharing a common signature motif, namely a Pro residue at position 2 and Leu anchor residue at the C-terminus.<ref>PMID:7743181</ref>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
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	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: Human]]	+	[[Category: Homo sapiens]]
		+	[[Category: Human immunodeficiency virus 1]]
	[[Category: Large Structures]]		[[Category: Large Structures]]
-	[[Category: Cole~~, D K~~]]	+	[[Category: Cole DK]]
-	[[Category: Fuller, A]]	+	[[Category: Fuller A]]
-	[[Category: Rizkallah~~, P J~~]]	+	[[Category: Rizkallah PJ]]
-	[[Category: Sewell~~, A K]]~~	+	[[Category: Sewell AK]]
-	~~[[Category: Hiv]]~~	+
-	~~[[Category: Hla]]~~	+
-	~~[[Category: Immune system]]~~	+
-	~~[[Category: Immunoglobulin~~]]	+

OCA at 15:06, 10 May 2019

OCA — Fri, 10 May 2019 15:06:16 GMT

←Older revision		Revision as of 15:06, 10 May 2019
Line 1:		Line 1:

	==HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1 escape through identical epitopes==		==HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1 escape through identical epitopes==
-	<StructureSection load='4u1h' size='340' side='right' caption='[[4u1h]], [[Resolution\|resolution]] 1.59Å' scene=''>	+	<StructureSection load='4u1h' size='340' side='right'caption='[[4u1h]], [[Resolution\|resolution]] 1.59Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[4u1h]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4U1H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4U1H FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[4u1h]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4U1H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4U1H FirstGlance]. <br>
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4u1i\|4u1i]], [[4u1j\|4u1j]], [[4u1k\|4u1k]], [[4u1l\|4u1l]], [[4u1m\|4u1m]], [[4u1n\|4u1n]]</td></tr>		<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4u1i\|4u1i]], [[4u1j\|4u1j]], [[4u1k\|4u1k]], [[4u1l\|4u1l]], [[4u1m\|4u1m]], [[4u1n\|4u1n]]</td></tr>
		+	<tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">HLA-B, HLAB ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), B2M, CDABP0092, HDCMA22P ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=4u1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u1h OCA], [http://pdbe.org/4u1h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4u1h RCSB], [http://www.ebi.ac.uk/pdbsum/4u1h PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4u1h ProSAT]</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=4u1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u1h OCA], [http://pdbe.org/4u1h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4u1h RCSB], [http://www.ebi.ac.uk/pdbsum/4u1h PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4u1h ProSAT]</span></td></tr>
	</table>		</table>
Line 21:		Line 22:
	</div>		</div>
	<div class="pdbe-citations 4u1h" style="background-color:#fffaf0;"></div>		<div class="pdbe-citations 4u1h" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[Beta-2 microglobulin 3D structures\|Beta-2 microglobulin 3D structures]]
	== References ==		== References ==
	<references/>		<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
		+	[[Category: Human]]
		+	[[Category: Large Structures]]
	[[Category: Cole, D K]]		[[Category: Cole, D K]]
	[[Category: Fuller, A]]		[[Category: Fuller, A]]

OCA at 01:21, 19 January 2017

OCA — Thu, 19 Jan 2017 01:21:36 GMT

←Older revision		Revision as of 01:21, 19 January 2017
Line 1:		Line 1:
		+
	==HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1 escape through identical epitopes==		==HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1 escape through identical epitopes==
	<StructureSection load='4u1h' size='340' side='right' caption='[[4u1h]], [[Resolution\|resolution]] 1.59Å' scene=''>		<StructureSection load='4u1h' size='340' side='right' caption='[[4u1h]], [[Resolution\|resolution]] 1.59Å' scene=''>
Line 5:		Line 6:
	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>		</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4u1i\|4u1i]], [[4u1j\|4u1j]], [[4u1k\|4u1k]], [[4u1l\|4u1l]], [[4u1m\|4u1m]], [[4u1n\|4u1n]]</td></tr>		<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4u1i\|4u1i]], [[4u1j\|4u1j]], [[4u1k\|4u1k]], [[4u1l\|4u1l]], [[4u1m\|4u1m]], [[4u1n\|4u1n]]</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=4u1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u1h OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4u1h RCSB], [http://www.ebi.ac.uk/pdbsum/4u1h 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=4u1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u1h OCA], [http://pdbe.org/4u1h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4u1h RCSB], [http://www.ebi.ac.uk/pdbsum/4u1h PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4u1h ProSAT]</span></td></tr>
	</table>		</table>
	== Disease ==		== Disease ==
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 4u1h" style="background-color:#fffaf0;"></div>
	== References ==		== References ==
	<references/>		<references/>

OCA at 11:05, 8 April 2015

OCA — Wed, 08 Apr 2015 11:05:47 GMT

←Older revision		Revision as of 11:05, 8 April 2015
Line 1:		Line 1:
-	'''~~Unreleased~~ structure'''	+	==HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1 escape through identical epitopes==
		+	<StructureSection load='4u1h' size='340' side='right' caption='[[4u1h]], [[Resolution\|resolution]] 1.59Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[4u1h]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4U1H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4U1H FirstGlance]. <br>
		+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
		+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[4u1i\|4u1i]], [[4u1j\|4u1j]], [[4u1k\|4u1k]], [[4u1l\|4u1l]], [[4u1m\|4u1m]], [[4u1n\|4u1n]]</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=4u1h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u1h OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4u1h RCSB], [http://www.ebi.ac.uk/pdbsum/4u1h PDBsum]</span></td></tr>
		+	</table>
		+	== Disease ==
		+	[[http://www.uniprot.org/uniprot/B2MG_HUMAN B2MG_HUMAN]] Defects in B2M are the cause of hypercatabolic hypoproteinemia (HYCATHYP) [MIM:[http://omim.org/entry/241600 241600]]. Affected individuals show marked reduction in serum concentrations of immunoglobulin and albumin, probably due to rapid degradation.<ref>PMID:16549777</ref> Note=Beta-2-microglobulin may adopt the fibrillar configuration of amyloid in certain pathologic states. The capacity to assemble into amyloid fibrils is concentration dependent. Persistently high beta(2)-microglobulin serum levels lead to amyloidosis in patients on long-term hemodialysis.<ref>PMID:3532124</ref> <ref>PMID:1336137</ref> <ref>PMID:7554280</ref> <ref>PMID:4586824</ref> <ref>PMID:8084451</ref> <ref>PMID:12119416</ref> <ref>PMID:12796775</ref> <ref>PMID:16901902</ref> <ref>PMID:16491088</ref> <ref>PMID:17646174</ref> <ref>PMID:18835253</ref> <ref>PMID:18395224</ref> <ref>PMID:19284997</ref>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/1B07_HUMAN 1B07_HUMAN]] Involved in the presentation of foreign antigens to the immune system. [[http://www.uniprot.org/uniprot/B2MG_HUMAN B2MG_HUMAN]] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system.
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	BACKGROUND: Presentation of identical HIV-1 peptides by closely related Human Leukocyte Antigen class I (HLAI) molecules can select distinct patterns of escape mutation that have a significant impact on viral fitness and disease progression. The molecular mechanisms by which HLAI micropolymorphisms can induce differential HIV-1 escape patterns within identical peptide epitopes remain unknown. RESULTS: Here, we undertook genetic and structural analyses of two immunodominant HIV-1 peptides, Gag180-188 (TPQDLNTML, TL9-p24) and Nef71-79 (RPQVPLRPM, RM9-Nef) that are among the most highly targeted epitopes in the global HIV-1 epidemic. We show that single polymorphisms between different alleles of the HLA-B7 superfamily can induce a conformational switch in peptide conformation that is associated with differential HLAI-specific escape mutation and immune control. A dominant R71K mutation in the Nef71-79 occurred in those with HLA-B07:02 but not B42:01/02 or B*81:01. No structural difference in the HLA-epitope complexes was detected to explain this observation. CONCLUSIONS: These data suggest that identical peptides presented through very similar HLAI landscapes are recognized as distinct epitopes and provide a novel structural mechanism for previously observed differential HIV-1 escape and disease progression.

-	~~The entry 4u1h is ON HOLD until Paper Publication~~	+	A molecular switch in immunodominant HIV-1-specific CD8 T-cell epitopes shapes differential HLA-restricted escape.,Kloverpris HN, Cole DK, Fuller A, Carlson J, Beck K, Schauenburg AJ, Rizkallah PJ, Buus S, Sewell AK, Goulder P Retrovirology. 2015 Feb 20;12(1):20. doi: 10.1186/s12977-015-0149-5. PMID:25808313<ref>PMID:25808313</ref>

-	~~Authors: Rizkallah~~, P.J.~~, Cole, D.K., Fuller, A., Sewell, A.K~~.	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-		+	</div>
-	~~Description: HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1 escape through identical epitopes~~	+	== References ==
-	~~[[Category: Unreleased Structures]]~~	+	<references/>
-	[[Category: Cole, D.K]]	+	__TOC__
-	~~[[Category: Sewell, A.K]]~~	+	</StructureSection>
-	~~[[Category: Rizkallah, P.J~~]]	+	[[Category: Cole, D K]]
	[[Category: Fuller, A]]		[[Category: Fuller, A]]
		+	[[Category: Rizkallah, P J]]
		+	[[Category: Sewell, A K]]
		+	[[Category: Hiv]]
		+	[[Category: Hla]]
		+	[[Category: Immune system]]
		+	[[Category: Immunoglobulin]]

OCA at 18:02, 24 December 2014

OCA — Wed, 24 Dec 2014 18:02:56 GMT

←Older revision		Revision as of 18:02, 24 December 2014
Line 6:		Line 6:

	Description: HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1 escape through identical epitopes		Description: HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1 escape through identical epitopes
		+	[[Category: Unreleased Structures]]
		+	[[Category: Cole, D.K]]
		+	[[Category: Sewell, A.K]]
		+	[[Category: Rizkallah, P.J]]
		+	[[Category: Fuller, A]]

OCA: Protected "4u1h" [edit=sysop:move=sysop]

OCA — Wed, 23 Jul 2014 07:25:20 GMT

Protected "4u1h" [edit=sysop:move=sysop]

←Older revision

Revision as of 07:25, 23 July 2014

OCA: New page: '''Unreleased structure''' The entry 4u1h is ON HOLD until Paper Publication Authors: Rizkallah, P.J., Cole, D.K., Fuller, A., Sewell, A.K. Description: HLA class I micropolymorphisms ...

OCA — Wed, 23 Jul 2014 07:25:18 GMT

New page: '''Unreleased structure''' The entry 4u1h is ON HOLD until Paper Publication Authors: Rizkallah, P.J., Cole, D.K., Fuller, A., Sewell, A.K. Description: HLA class I micropolymorphisms ...

New page

'''Unreleased structure'''

The entry 4u1h is ON HOLD until Paper Publication

Authors: Rizkallah, P.J., Cole, D.K., Fuller, A., Sewell, A.K.

Description: HLA class I micropolymorphisms determine peptide-HLA landscape and dictate differential HIV-1 escape through identical epitopes