>sp|Q57AF2|TRPA_BRUAB Tryptophan synthase alpha chain OS=Brucella abortus biovar 1 GN=trpA MTTRIDTKFAELKAEGRPALVTYFMGGDPDLETALKVMKALPKAGADVIELGMPFSDPMA DGPAIQAAGLRALNAGQTLAKTLYMAAEFRKEDDTTPIVMMGYYNPIYVYGVERFLTDAK ASGVDGLIVVDLPSEMDAELCIPAMKAGINFIRLTTPTTDDKRLPKVLHNSSGFVYYVSM NGITGAAIADTAKVGEAVRHIKKSTDLPICVGFGVKTPEQAAAIATHADSVVVGTAIVNA IAGELDEKGKVKGDPVAAATRLVHALAESVRATRLEAAQ