An unusual amide synthetase (CouL) from the coumermycin A1 biosynthetic gene cluster from Streptomyces rishiriensis DSM 40489

Abstract
The aminocoumarin antibiotic coumermycin A1 produced by Streptomyces rishiriensis DSM 40489 contains two amide bonds. The biosynthetic gene cluster of coumermycin contains a putative amide synthetase...