View source for 6bmm


==Structure of human DHHC20 palmitoyltransferase, space group P21==
<StructureSection load='6bmm' size='340' side='right'caption='[[6bmm]], [[Resolution|resolution]] 2.35&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6bmm]] is a 2 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=6BMM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6BMM FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.35&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CME:S,S-(2-HYDROXYETHYL)THIOCYSTEINE'>CME</scene>, <scene name='pdbligand=DYD:(2S,5S)-hexane-2,5-diol'>DYD</scene>, <scene name='pdbligand=OLB:(2S)-2,3-DIHYDROXYPROPYL+(9Z)-OCTADEC-9-ENOATE'>OLB</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=6bmm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6bmm OCA], [https://pdbe.org/6bmm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6bmm RCSB], [https://www.ebi.ac.uk/pdbsum/6bmm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6bmm ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ZDH20_HUMAN ZDH20_HUMAN] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
DHHC (Asp-His-His-Cys) palmitoyltransferases are eukaryotic integral membrane enzymes that catalyze protein palmitoylation, which is important in a range of physiological processes, including small guanosine triphosphatase (GTPase) signaling, cell adhesion, and neuronal receptor scaffolding. We present crystal structures of two DHHC palmitoyltransferases and a covalent intermediate mimic. The active site resides at the membrane-cytosol interface, which allows the enzyme to catalyze thioester-exchange chemistry by using fatty acyl-coenzyme A and explains why membrane-proximal cysteines are candidates for palmitoylation. The acyl chain binds in a cavity formed by the transmembrane domain. We propose a mechanism for acyl chain-length selectivity in DHHC enzymes on the basis of cavity mutants with preferences for shorter and longer acyl chains.

Fatty acyl recognition and transfer by an integral membrane S-acyltransferase.,Rana MS, Kumar P, Lee CJ, Verardi R, Rajashankar KR, Banerjee A Science. 2018 Jan 12;359(6372). pii: 359/6372/eaao6326. doi:, 10.1126/science.aao6326. PMID:29326245<ref>PMID:29326245</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6bmm" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Banerjee A]]
[[Category: Lee C-J]]
[[Category: Rana MS]]