Protein
dTDP-4-amino-4,6-dideoxy-D-glucose ammonia-lyase
Organism
Streptomyces venezuelae
Function
Involved in the biosynthesis of dTDP-alpha-D-desosamine, a sugar found in several bacterial macrolide antibiotics. Catalyzes the SAM-dependent deamination of dTDP-4-amino-4,6-deoxyglucose (dTDP-viosamine) to yield dTDP-3-keto-4,6-deoxyglucose. It can also catalyze the oxidative dehydrogenation of the non-physiological substrate dTDP-D-quinovose to dTDP-3-keto-6-deoxy-d-glucose. It can also deaminate dTDP-3-amino-3,6-deoxyglucose.
Similarity
Belongs to the radical SAM superfamily. DesII family.
Sequence
MTAPALSATAPAERCAHPGADLGAAVHAVGQTLAAGGLVPPDEAGTTARHLVRLAVRYGNSPFTPLEEARHDLGVDRDAFRRLLALFGQVPELRTAVETGPAGAYWKNTLLPLEQRGVFDAALARKPVFPYSVGLYPGPTCMFRCHFCVRVTGARYDPSALDAGNAMFRSVIDEIPAGNPSAMYFSGGLEPLTNPGLGSLAAHATDHGLRPTVYTNSFALTERTLERQPGLWGLHAIRTSLYGLNDEEYEQTTGKKAAFRRVRENLRRFQQLRAERESPINLGFAYIVLPGRASRLLDLVDFIADLNDAGQGRTIDFVNIREDYSGRDDGKLPQEERAELQEALNAFEERVRERTPGLHIDYGYALNSLRTGADAELLRIKPATMRPTAHPQVAVQVDLLGDVYLYREAGFPDLDGATRYIAGRVTPDTSLTEVVRDFVERGGEVAAVDGDEYFMDGFDQVVTARLNQLERDAADGWEEARGFLR