4y42
From Proteopedia
Cyanase (CynS) from Serratia proteamaculans
Structural highlights
FunctionCYNS_SERP5 Catalyzes the reaction of cyanate with bicarbonate to produce ammonia and carbon dioxide. Publication Abstract from PubMedCyanate hydratase (CynS) catalyzes the decomposition of cyanate and bicarbonate into ammonia and carbon dioxide. Here, the serendipitous crystallization of CynS from Serratia proteamaculans (SpCynS) is reported. SpCynS was crystallized as an impurity and its identity was determined using mass-spectrometric analysis. The crystals belonged to space group P1 and diffracted to 2.1 A resolution. The overall structure of SpCynS is very similar to a previously determined structure of CynS from Escherichia coli. Density for a ligand bound to the SpCynS active site was observed, but could not be unambiguously identified. Additionally, glycerol molecules bound at the entry to the active site of the enzyme indicate conserved residues that might be important for the trafficking of substrates and products. Serendipitous crystallization and structure determination of cyanase (CynS) from Serratia proteamaculans.,Butryn A, Stoehr G, Linke-Winnebeck C, Hopfner KP Acta Crystallogr F Struct Biol Commun. 2015 Apr;71(Pt 4):471-6. doi:, 10.1107/S2053230X15004902. Epub 2015 Mar 21. PMID:25849512[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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