Protein
UDP-4-amino-4-deoxy-L-arabinose--oxoglutarate aminotransferase
Organism
Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)
Function
Catalyzes the conversion of UDP-4-keto-arabinose (UDP-Ara4O) to UDP-4-amino-4-deoxy-L-arabinose (UDP-L-Ara4N) (PubMed:12429098, PubMed:24460375). The modified arabinose is attached to lipid A and is required for resistance to polymyxin and cationic antimicrobial peptides (By similarity).
Similarity
Belongs to the DegT/DnrJ/EryC1 family. ArnB subfamily.
Sequence
MAEGKMMSDFLPFSRPAMGAEELAAVKTVLDSGWITTGPKNQELEAAFCRLTGNQYAVAVSSATAGMHIALMALGIGEGDEVITPSMTWVSTLNMIVLLGANPVMVDVDRDTLMVTPEHIEAAITPQTKAIIPVHYAGAPADLDAIYALGERYGIPVIEDAAHATGTSYKGRHIGARGTAIFSFHAIKNITCAEGGIVVTDNPQFADKLRSLKFHGLGVDAWDRQSGGRAPQAEVLAPGYKYNLPDLNAAIALAQLQKLDALNARRAAIAAQYHQAMADLPFQPLSLPSWEHIHAWHLFIIRVDEARCGITRDALMASLKTKGIGTGLHFRAAHTQKYYRERFPTLTLPDTEWNSERICSLPLFPDMTESDFDRVITALHQIAGQ