Using MbtH-Like Proteins to Alter the Substrate Profile of a Nonribosomal Peptide Adenylation Enzyme.

Chembiochem

Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lee T. Todd, Jr. Building, 789 South Limestone St., Lexington, KY, 40536-0596, USA.

Published: October 2018


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Article Abstract

MbtH-like proteins (MLPs) are required for soluble expression and/or optimal activity of some adenylation (A) domains of nonribosomal peptide synthetases. Because A domains can interact with noncognate MLP partners, how the function of an A domain, TioK, involved in the biosynthesis of the bisintercalator thiocoraline, is altered by noncognate MLPs has been investigated. Measuring TioK activity with 12 different MLPs from a variety of bacterial species by using a radiometric assay suggested that the A domain substrate promiscuity could be altered by foreign MLPs. Kinetic studies and bioinformatics analysis expanded the complexity of MLP functions and interactions.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6439349PMC
http://dx.doi.org/10.1002/cbic.201800240DOI Listing

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