>sp|A2BNV9|TRPB_PROMS Tryptophan synthase beta chain OS=Prochlorococcus marinus GN=trpB MVSTFSRKDQNYKNDDLNQPSIEGRFGKYGGQYVPETLMPALFELEDAASNAWKDKLFVE ELNHLLKTYVGRETPLYEAKRLTEHYKNKQATPRIWLKREDLNHTGAHKINNALGQALLA IRMGKKRIIAETGAGQHGVATATVCARFGLKCIIYMGAEDIKRQSLNVFRMKLLGAEVKV VNSGTATLKDATSEAIRDWVSNVETTHYILGSVAGPHPFPKIVRDFHAVIGEETKKQCLE SFGSLPDILLACVGGGSNAMGLFHPFVKETSVRLIGVEAAGSGVDTDKHAATITKGSVGI LHGSMSLLLQDDNGQVQEAHSISAGLDYPGVGPEHSHLKDIGRAEYGSVTDQEALDALKL VSELEGIIPALETAHAFAWLDKLCPTLEKDTNIVINCSGRGDKDVNTVASSLDI