The enzyme from the bacterium Streptomyces lincolnensis participates in the biosynthesis of the antibiotic lincomycin A, while that from Streptomyces refuineus is involved in anthramycin biosynthesis. The enzyme, which contains a heme b cofactor, is rapidly inactivated in the presence of hydrogen peroxide, but the presence of L-tyrosine protects it. cf. EC 1.11.2.5, 3-methyl-L-tyrosine peroxygenase.
Neusser D, Schmidt H, Spizek J, Novotna J, Peschke U, Kaschabeck S, Tichy P, Piepersberg W
Title
The genes lmbB1 and lmbB2 of Streptomyces lincolnensis encode enzymes involved in the conversion of L-tyrosine to propylproline during the biosynthesis of the antibiotic lincomycin A.