Crystal structure of C. albicans Thi5 complexed with PLPCrystal structure of C. albicans Thi5 complexed with PLP

Structural highlights

4esx is a 2 chain structure with sequence from Candida albicans WO-1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.2Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

THI5_CANAW Responsible for the formation of the pyrimidine heterocycle in the thiamine biosynthesis pathway. Catalyzes the formation of hydroxymethylpyrimidine phosphate (HMP-P) from histidine and pyridoxal phosphate (PLP). The protein uses PLP and the active site histidine to form HMP-P, generating an inactive enzyme. The enzyme can only undergo a single turnover, which suggests it is a suicide enzyme.[1]

References

  1. Lai RY, Huang S, Fenwick MK, Hazra A, Zhang Y, Rajashankar K, Philmus B, Kinsland C, Sanders JM, Ealick SE, Begley TP. Thiamin pyrimidine biosynthesis in Candida albicans : a remarkable reaction between histidine and pyridoxal phosphate. J Am Chem Soc. 2012 Jun 6;134(22):9157-9. Epub 2012 May 24. PMID:22568620 doi:http://dx.doi.org/10.1021/ja302474a

4esx, resolution 2.20Å

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