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Modified Substrate Specificity Of A Methyltransferase Domain By Protein Insertion Into An Adenylation Domain Of The Bassianolide Synthetase, Fuchao Xu, Russell Butler, Kyle M. May, Megi Rexhepaj, Dayu Yu, Jiachen Zi, Yi Chen, Yonghong Liang, Jia Zeng, Joan Hevel, Jixun Zhan
Modified Substrate Specificity Of A Methyltransferase Domain By Protein Insertion Into An Adenylation Domain Of The Bassianolide Synthetase, Fuchao Xu, Russell Butler, Kyle M. May, Megi Rexhepaj, Dayu Yu, Jiachen Zi, Yi Chen, Yonghong Liang, Jia Zeng, Joan Hevel, Jixun Zhan
Chemistry and Biochemistry Faculty Presentations
Background: Creating designer molecules using a combination of select domains from polyketide synthases and/or nonribosomal peptide synthetases (NRPS) continues to be a synthetic goal. However, an incomplete understanding of how protein-protein interactions and dynamics affect each of the domain functions stands as a major obstacle in the field. Of particular interest is understanding the basis for a class of methyltransferase domains (MT) that are found embedded within the adenylation domain (A) of fungal NRPS systems instead of in an end-to-end architecture.
Results: The MT domain from bassianolide synthetase (BSLS) was removed and the truncated enzyme BSLS-ΔMT was recombinantly expressed. The …