Download MendeleyFunctional and Structural Analyses oftrans C-Methyltransferase in Fungal Polyketide Biosynthesis.
Kishimoto, S., Tsunematsu, Y., Matsushita, T., Hara, K., Hashimoto, H., Tang, Y., Watanabe, K.(2019) Biochemistry 58: 3933-3937
- PubMed: 31486637
- DOI: https://doi.org/10.1021/acs.biochem.9b00702
- Primary Citation of Related Structures:
6KJG, 6KJI - PubMed Abstract:
Biosynthesis of certain fungal polyketide-peptide synthetases involves C -methyltransferase activity that adds one or more S -adenosyl-l-methionine-derived methyl groups to the carbon framework. The previously reported PsoF-MT, the stand-alone C -methyltransferase (MT) from the pseurotin biosynthetic pathway that exists as a domain within a trifunctional didomain enzyme PsoF, was characterized crystallographically and kinetically using mutants with substrate analogs to understand how a trans -acting C -MT works and compare it to known polyketide synthase-associated C -MTs. This study identified key active-site residues involved in catalysis and substrate recognition, which led us to propose the mechanism of C -methylation and substrate specificity determinants in PsoF-MT.
Organizational Affiliation:
Department of Pharmaceutical Sciences , University of Shizuoka , Shizuoka 422-8526 , Japan.
