Alenazi J, Mayclin S, Subramanian S, Myler PJ, Asojo OA. Crystal structure of a short-chain dehydrogenase/reductase from Burkholderia phymatum in complex with NAD.
Acta Crystallogr F Struct Biol Commun 2022;
78:52-58. [PMID:
35102893 PMCID:
PMC8805215 DOI:
10.1107/s2053230x22000218]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/06/2022] [Indexed: 11/10/2022] Open
Abstract
Burkholderia phymatum is an important symbiotic nitrogen-fixing betaproteobacterium. B. phymatum is beneficial, unlike other Burkholderia species, which cause disease or are potential bioagents. Structural genomics studies at the SSGCID include characterization of the structures of short-chain dehydrogenases/reductases (SDRs) from multiple Burkholderia species. The crystal structure of a short-chain dehydrogenase from B. phymatum (BpSDR) was determined in space group C2221 at a resolution of 1.80 Å. BpSDR shares less than 38% sequence identity with any known structure. The monomer is a prototypical SDR with a well conserved cofactor-binding domain despite its low sequence identity. The substrate-binding cavity is unique and offers insights into possible functions and likely inhibitors of the enzymatic functions of BpSDR.
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