6bmn

Structure of human DHHC20 palmitoyltransferase, space group P63

spinqualitylabelsall models 6bmn, resolution 2.25Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6bmn is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.25Å Ligands: CME, PAP, PO4, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function ZDH20_HUMAN 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 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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