>sp|C3MBA0|TRPA_SINFN Tryptophan synthase alpha chain OS=Sinorhizobium fredii GN=trpA MTARMEQRFADVAAEGRPVLVTYFMGGDPDFETSLSIMQALPKAGADVIELGVPFSDPMA DGPAIQLAGQRALKAGQTLAKTLELARRFRAEDQRTPIVLMGYYNPIYIYGVERFLNDAV EAGVDGLIVVDLPPEMDDELCIPALKKGISFIRLATPTTDDRRLPKVLENTSGFVYYVSM TGITGSALPDPSRIAGAVARIKSHTSLPVCVGFGVKTAEHARVIGASADGVVVGTAIVNQ IASSLTEEGRVTEATVPGVEALVRGLSAGVRAARLAAAE