>sp|A1K4B0|TRPA_AZOSB Tryptophan synthase alpha chain OS=Azoarcus sp. GN=trpA MSKIQTTFQRLQAQGRKALIPFITAGDPDPTLTVPLMHALVAGGADIIELGVPFSDPMAD GPTIQRASERALAQGMTLRKVLQAVREFRSGDADTPVVLMGYANPIEAMGQQAFVAAARE AGVDGALVVDYPPEECVEFAAASKAAGLDPIFLLAPTSSEQRFADVARAGSGYIYYVSLK GVTGAGTLDLDEVARRIPQIRAAVGMPVGVGFGIRDAESARRIGAVADAVVIGSRIIEEI ERSPREQACSNVTHFVKGIREALDTLPGVKQ