>sp|B3ENW0|TRPA_CHLPB Tryptophan synthase alpha chain OS=Chlorobium phaeobacteroides GN=trpA MAQNRVSRLMQEDRKFLIAYYMPEFPLPGSTLPVLEALQKSGVDIIELGMPYSDPIGDGP VIQDAAHTAIGNGVHIAGILDLVRKARAGEGCEKITVPLLLMGYCSPLIAYGGDCFLSDA SEAGVDGLLIPDLPPEEAEDFLFRARGFGLSVIFFISPETPPERIGMIDGLSTDFSYCFA VNATTGTAKLAGADSERDIESYLRRVREHTKKKFVVGFGIKDRARVEKMWNLADGAVVGT ALLQAIRNASTPEEVALMTAEFWKTLKS