>tr|H1AFK4|H1AFK4_SHEFR Tryptophan synthase beta chain OS=Shewanella frigidimarina GN=trpB MTELKLNPYFGEYGGMYVPQILVPALKQLETAFVEAQQDESFIAEFTDLLKNYAGRPTAL TLTRNLSPNPLVKIYLKREDLLHGGAHKTNQVLGQALLAKRMGKKEIIAETGAGQHGVAT ALACALLGLKCKVYMGAKDIERQSPNVFRMKLMGAEVIPVTSGSSTLKDACNEAMRDWSA SYDKAHYLLGTAAGPHPFPTIVREFQRMIGEETKKQILEKEGRLPDAVIACVGGGSNAIG MFADFIDEPSVELIGVEPAGKGIDTPMHGAPLKHGKTGIFFGMKSPLMQNSDGQIEESYS VSAGLDFPSVGPQHAHLNAIGRARYESATDDEALEMFQTLARCEGIIPALESAHALAYAV RMAKEATKETILVVNLSGRGDKDIFTVADILEAKQKQQESGNE