Insights into 6‐Methylsalicylic Acid Bio‐assembly by Using Chemical Probes. (2nd February 2016)

• Record Type: Journal Article
• Authors: Parascandolo, James S.; Havemann, Judith; Potter, Helen K.; Huang, Fanglu; Riva, Elena; Connolly, Jack; Wilkening, Ina; Song, Lijiang; Leadlay, Peter F.; Tosin, Manuela
• Is Part Of: Angewandte Chemie. Volume 128:Number 10(2016)
• Page Start: 3524
• Page End: 3528
• Publication Date: 2016-02-02
• Subjects: Chemische Sonden -- Dehydratase -- Iterative Polyketidkatalyse; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201509038
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Chemical probes capable of reacting with KS (ketosynthase)‐bound biosynthetic intermediates were utilized for the investigation of the model type I iterative polyketide synthase 6‐methylsalicylic acid synthase (6‐MSAS) in vivo and in vitro. From the fermentation of fungal and bacterial 6‐MSAS hosts in the presence of chain termination probes, a full range of biosynthetic intermediates was isolated and characterized for the first time. Meanwhile, in vitro studies of recombinant 6‐MSA synthases with both nonhydrolyzable and hydrolyzable substrate mimics have provided additional insights into substrate recognition, providing the basis for further exploration of the enzyme catalytic activities.