   2.4.2.49 | metabolism |
BtrA, BtrL, BtrP, and BtrV proteins encoded in the butirosin biosynthetic gene cluster (btr) from Bacillus circulans SANK72073 are responsible for the O-ribosylation process leading to the formation of ribostamycin, a key intermediate in this, and related antibiotic biosynthetic pathways. Both BtrL and BtrP are responsible for the ribosylation of neamine, using 5-phosphoribosyl 1-diphosphate as the ribosyl donor via two discrete steps: with BtrL first catalyzes the phosphoribosylaion of neamine to form 5''-phosphoribostamycin, followed by a BtrP catalyzing the dephosphorylation to generate ribostamycin |
-, 719073 |
