>sp|Q57BX7|APT_BRUAB Adenine phosphoribosyltransferase OS=Brucella abortus biovar 1 GN=apt MESGFKVTLKDAIRTIPDYPKPGVQFRDVTTLMGNAQAFRRAVDELVYPYAGNRIDKVAG IEARGFILGGAIAHQLSAGFVPIRKKGKLPRDTVRIAYSLEYGVDEMEMHRDAIEKGERV VLVDDLIATGGTAEAAAKLLLQMGAEIVAACFIIDLPDLGGRKKLEALGLPVRTLVAFEG D