The crystal structure of premithramycin B in complex with MTMOIV, a baeyer-villiger monooxygenase from the mithramycin biosynthetic pathway in streptomyces argillaceus.
4k5s is a 1 chain structure with sequence from Streptomyces argillaceus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.