>tr|A0A841HEF7|A0A841HEF7_HALSI Tryptophan synthase alpha chain OS=Halobacterium salinarum GN=trpA MTRSDLAAAFDDGPALVSYVVAGDPTPAATAEYIDALVDGGTDVIELGLPFSEPVAEGTT IQNAIKRALDAGMTPDAYLDLVARIDADVPVVCMTYYNLLFQYGDRAGPAAFVSAAAEAG VSGFVVPDLPVDESGPLREACRAHGLDLVFVVAPTTTADRRERMLDLTTGFVYVQGRVGT TGAREEVSAATPDALAALQHTDIPKAVGFGVSSGEQAREITASGADGVIVGSAYVDTVAD GVADDDPPSVVADRLRDLAAELKAGAARGVPEPEHK