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| | <StructureSection load='3rqd' size='340' side='right'caption='[[3rqd]], [[Resolution|resolution]] 2.14Å' scene=''> | | <StructureSection load='3rqd' size='340' side='right'caption='[[3rqd]], [[Resolution|resolution]] 2.14Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3rqd]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RQD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3RQD FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3rqd]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Symploca Symploca]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RQD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3RQD FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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]] 2.143Å</td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=02G:(3S,4E)-3-HYDROXY-7-SULFANYLHEPT-4-ENOIC+ACID'>02G</scene>, <scene name='pdbligand=03Y:2-METHYL-L-CYSTEINE'>03Y</scene>, <scene name='pdbligand=BB9:(2Z)-2-AMINO-3-SULFANYLPROP-2-ENOIC+ACID'>BB9</scene></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=02G:(3S,4E)-3-HYDROXY-7-SULFANYLHEPT-4-ENOIC+ACID'>02G</scene>, <scene name='pdbligand=03Y:2-METHYL-L-CYSTEINE'>03Y</scene>, <scene name='pdbligand=BB9:(2Z)-2-AMINO-3-SULFANYLPROP-2-ENOIC+ACID'>BB9</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HDAC8, HDACL1, CDA07 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
| + | |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Histone_deacetylase Histone deacetylase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.1.98 3.5.1.98] </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=3rqd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3rqd OCA], [https://pdbe.org/3rqd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3rqd RCSB], [https://www.ebi.ac.uk/pdbsum/3rqd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3rqd 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=3rqd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3rqd OCA], [https://pdbe.org/3rqd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3rqd RCSB], [https://www.ebi.ac.uk/pdbsum/3rqd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3rqd ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/HDAC8_HUMAN HDAC8_HUMAN]] Responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. Histone deacetylases act via the formation of large multiprotein complexes. May play a role in smooth muscle cell contractility.<ref>PMID:10748112</ref> <ref>PMID:10926844</ref> <ref>PMID:10922473</ref> <ref>PMID:14701748</ref>
| + | [https://www.uniprot.org/uniprot/HDAC8_HUMAN HDAC8_HUMAN] Responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. Histone deacetylases act via the formation of large multiprotein complexes. May play a role in smooth muscle cell contractility.<ref>PMID:10748112</ref> <ref>PMID:10926844</ref> <ref>PMID:10922473</ref> <ref>PMID:14701748</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: Histone deacetylase]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Human]]
| + | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Christianson, D W]] | + | [[Category: Symploca]] |
| - | [[Category: Cole, K E]] | + | [[Category: Christianson DW]] |
| - | [[Category: Dowling, D P]] | + | [[Category: Cole KE]] |
| - | [[Category: Histone deacetylation]] | + | [[Category: Dowling DP]] |
| - | [[Category: Hydrolase-hydrolase inhibitor complex]]
| + | |
| - | [[Category: Largazole]]
| + | |
| Structural highlights
3rqd is a 4 chain structure with sequence from Homo sapiens and Symploca. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Method: | X-ray diffraction, Resolution 2.143Å |
| Ligands: | , , , , |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
HDAC8_HUMAN Responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4). Histone deacetylation gives a tag for epigenetic repression and plays an important role in transcriptional regulation, cell cycle progression and developmental events. Histone deacetylases act via the formation of large multiprotein complexes. May play a role in smooth muscle cell contractility.[1] [2] [3] [4]
Publication Abstract from PubMed
Largazole is a macrocyclic depsipeptide originally isolated from the marine cyanobacterium Symploca sp., which is indigenous to the warm, blue-green waters of Key Largo, Florida (whence largazole derives its name). Largazole contains an unusual thiazoline-thiazole ring system that rigidifies its macrocyclic skeleton, and it also contains a lipophilic thioester side chain. Hydrolysis of the thioester in vivo yields largazole thiol, which exhibits remarkable antiproliferative effects and is believed to be the most potent inhibitor of the metal-dependent histone deacetylases (HDACs). Here, the 2.14 A-resolution crystal structure of the HDAC8-largazole thiol complex is the first of an HDAC complexed with a macrocyclic inhibitor and reveals that ideal thiolate-zinc coordination geometry is the key chemical feature responsible for its exceptional affinity and biological activity. Notably, the core structure of largazole is conserved in romidepsin, a depsipeptide natural product formulated as the drug Istodax recently approved for cancer chemotherapy. Accordingly, the structure of the HDAC8-largazole thiol complex is the first to illustrate the mode of action of a new class of therapeutically important HDAC inhibitors.
Structural basis of the antiproliferative activity of largazole, a depsipeptide inhibitor of the histone deacetylases.,Cole KE, Dowling DP, Boone MA, Phillips AJ, Christianson DW J Am Chem Soc. 2011 Aug 17;133(32):12474-7. Epub 2011 Jul 26. PMID:21790156[5]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Hu E, Chen Z, Fredrickson T, Zhu Y, Kirkpatrick R, Zhang GF, Johanson K, Sung CM, Liu R, Winkler J. Cloning and characterization of a novel human class I histone deacetylase that functions as a transcription repressor. J Biol Chem. 2000 May 19;275(20):15254-64. PMID:10748112 doi:http://dx.doi.org/10.1074/jbc.M908988199
- ↑ Buggy JJ, Sideris ML, Mak P, Lorimer DD, McIntosh B, Clark JM. Cloning and characterization of a novel human histone deacetylase, HDAC8. Biochem J. 2000 Aug 15;350 Pt 1:199-205. PMID:10926844
- ↑ Van den Wyngaert I, de Vries W, Kremer A, Neefs J, Verhasselt P, Luyten WH, Kass SU. Cloning and characterization of human histone deacetylase 8. FEBS Lett. 2000 Jul 28;478(1-2):77-83. PMID:10922473
- ↑ Lee H, Rezai-Zadeh N, Seto E. Negative regulation of histone deacetylase 8 activity by cyclic AMP-dependent protein kinase A. Mol Cell Biol. 2004 Jan;24(2):765-73. PMID:14701748
- ↑ Cole KE, Dowling DP, Boone MA, Phillips AJ, Christianson DW. Structural basis of the antiproliferative activity of largazole, a depsipeptide inhibitor of the histone deacetylases. J Am Chem Soc. 2011 Aug 17;133(32):12474-7. Epub 2011 Jul 26. PMID:21790156 doi:10.1021/ja205972n
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