4io8

From Proteopedia

(Difference between revisions)

Revision as of 21:00, 16 November 2022

Crystal structure of human HSP70 complexed with 4-{(2R,3S,4R)-5-[(R)-6-Amino-8-(3,4-dichloro-benzylamino)-purin-9-yl]-3,4-dihydroxy-tetrahydro-furan-2-ylmethoxymethyl}-benzonitrile

Structural highlights

4io8 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

HS71A_HUMAN In cooperation with other chaperones, Hsp70s stabilize preexistent proteins against aggregation and mediate the folding of newly translated polypeptides in the cytosol as well as within organelles. These chaperones participate in all these processes through their ability to recognize nonnative conformations of other proteins. They bind extended peptide segments with a net hydrophobic character exposed by polypeptides during translation and membrane translocation, or following stress-induced damage. In case of rotavirus A infection, serves as a post-attachment receptor for the virus to facilitate entry into the cell. Essential for STUB1-mediated ubiquitination and degradation of FOXP3 in regulatory T-cells (Treg) during inflammation (PubMed:23973223).^[1] ^[2] ^[3]

Publication Abstract from PubMed

The molecular chaperones of the Hsp70 family have been recognized as targets for anti-cancer therapy. Since several paralogs of Hsp70 proteins exist in cytosol, endoplasmic reticulum and mitochondria, we investigated which isoform needs to be down-regulated for reducing viability of cancer cells. For two recently identified small molecule inhibitors, VER-155008 and 2-phenylethynesulfonamide (PES), which are proposed to target different sites in Hsp70s, we analyzed the molecular mode of action in vitro. We found that for significant reduction of viability of cancer cells simultaneous knockdown of heat-inducible Hsp70 (HSPA1) and constitutive Hsc70 (HSPA8) is necessary. The compound VER-155008, which binds to the nucleotide binding site of Hsp70, arrests the nucleotide binding domain (NBD) in a half-open conformation and thereby acts as ATP-competitive inhibitor that prevents allosteric control between NBD and substrate binding domain (SBD). Compound PES interacts with the SBD of Hsp70 in an unspecific, detergent-like fashion, under the conditions tested. None of the two inhibitors investigated was isoform-specific.

Functional analysis of hsp70 inhibitors.,Schlecht R, Scholz SR, Dahmen H, Wegener A, Sirrenberg C, Musil D, Bomke J, Eggenweiler HM, Mayer MP, Bukau B PLoS One. 2013 Nov 12;8(11):e78443. doi: 10.1371/journal.pone.0078443. PMID:24265689^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Perez-Vargas J, Romero P, Lopez S, Arias CF. The peptide-binding and ATPase domains of recombinant hsc70 are required to interact with rotavirus and reduce its infectivity. J Virol. 2006 Apr;80(7):3322-31. PMID:16537599 doi:http://dx.doi.org/80/7/3322
↑ Liu X, Liu D, Qian D, Dai J, An Y, Jiang S, Stanley B, Yang J, Wang B, Liu X, Liu DX. Nucleophosmin (NPM1/B23) interacts with activating transcription factor 5 (ATF5) protein and promotes proteasome- and caspase-dependent ATF5 degradation in hepatocellular carcinoma cells. J Biol Chem. 2012 Jun 1;287(23):19599-609. doi: 10.1074/jbc.M112.363622. Epub, 2012 Apr 23. PMID:22528486 doi:http://dx.doi.org/10.1074/jbc.M112.363622
↑ Chen Z, Barbi J, Bu S, Yang HY, Li Z, Gao Y, Jinasena D, Fu J, Lin F, Chen C, Zhang J, Yu N, Li X, Shan Z, Nie J, Gao Z, Tian H, Li Y, Yao Z, Zheng Y, Park BV, Pan Z, Zhang J, Dang E, Li Z, Wang H, Luo W, Li L, Semenza GL, Zheng SG, Loser K, Tsun A, Greene MI, Pardoll DM, Pan F, Li B. The ubiquitin ligase Stub1 negatively modulates regulatory T cell suppressive activity by promoting degradation of the transcription factor Foxp3. Immunity. 2013 Aug 22;39(2):272-85. doi: 10.1016/j.immuni.2013.08.006. PMID:23973223 doi:http://dx.doi.org/10.1016/j.immuni.2013.08.006
↑ Schlecht R, Scholz SR, Dahmen H, Wegener A, Sirrenberg C, Musil D, Bomke J, Eggenweiler HM, Mayer MP, Bukau B. Functional analysis of hsp70 inhibitors. PLoS One. 2013 Nov 12;8(11):e78443. doi: 10.1371/journal.pone.0078443. PMID:24265689 doi:http://dx.doi.org/10.1371/journal.pone.0078443

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4io8"

Categories: Homo sapiens | Large Structures | Musil D | Scholz S

@@ Line 3: / Line 3: @@
 <StructureSection load='4io8' size='340' side='right'caption='[[4io8]], [[Resolution|resolution]] 2.58&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4io8]] is a 1 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=4IO8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4IO8 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4io8]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4IO8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4IO8 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=3FD:4-[[(2R,3S,4R,5R)-5-[6-AMINO-8-[(3,4-DICHLOROPHENYL)METHYLAMINO]PURIN-9-YL]-3,4-DIHYDROXY-OXOLAN-2-YL]METHOXYMETHYL]BENZONITRILE'>3FD</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3FD:4-[[(2R,3S,4R,5R)-5-[6-AMINO-8-[(3,4-DICHLOROPHENYL)METHYLAMINO]PURIN-9-YL]-3,4-DIHYDROXY-OXOLAN-2-YL]METHOXYMETHYL]BENZONITRILE'>3FD</scene></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=4io8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4io8 OCA], [http://pdbe.org/4io8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4io8 RCSB], [http://www.ebi.ac.uk/pdbsum/4io8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4io8 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=4io8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4io8 OCA], [https://pdbe.org/4io8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4io8 RCSB], [https://www.ebi.ac.uk/pdbsum/4io8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4io8 ProSAT]</span></td></tr>
 </table>
+== Function ==
+[https://www.uniprot.org/uniprot/HS71A_HUMAN HS71A_HUMAN] In cooperation with other chaperones, Hsp70s stabilize preexistent proteins against aggregation and mediate the folding of newly translated polypeptides in the cytosol as well as within organelles. These chaperones participate in all these processes through their ability to recognize nonnative conformations of other proteins. They bind extended peptide segments with a net hydrophobic character exposed by polypeptides during translation and membrane translocation, or following stress-induced damage. In case of rotavirus A infection, serves as a post-attachment receptor for the virus to facilitate entry into the cell. Essential for STUB1-mediated ubiquitination and degradation of FOXP3 in regulatory T-cells (Treg) during inflammation (PubMed:23973223).<ref>PMID:16537599</ref> <ref>PMID:22528486</ref> <ref>PMID:23973223</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 18: / Line 20: @@
 ==See Also==
-*[[Heat Shock Proteins|Heat Shock Proteins]]
+*[[Heat Shock Protein structures|Heat Shock Protein structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Human]]
+[[Category: Homo sapiens]]
 [[Category: Large Structures]]
-[[Category: Musil, D]]
+[[Category: Musil D]]
-[[Category: Scholz, S]]
+[[Category: Scholz S]]
-[[Category: Atpase]]
-[[Category: Chaperone]]
-[[Category: Hsp70]]
-[[Category: Molecular chaperone]]

4io8

From Proteopedia

Revision as of 21:00, 16 November 2022

Crystal structure of human HSP70 complexed with 4-{(2R,3S,4R)-5-[(R)-6-Amino-8-(3,4-dichloro-benzylamino)-purin-9-yl]-3,4-dihydroxy-tetrahydro-furan-2-ylmethoxymethyl}-benzonitrile

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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