>sp|B5Z8S2|TRPA_HELPG Tryptophan synthase alpha chain OS=Helicobacter pylori GN=trpA MRYQNMFETLKKHEKMAFIPFVTLGDPNYEWSFEIIKTLIISGVSALELGFAFSDPVADG ITIQVSHLRALKHASMAKNFQLLRAVRDYNPHIPIGLLAYANLIFSYGVDGFYAQIKECG VDSVLIADMPLIEKELVIKSAQKHQIKQIFIASPNASSKDLEQVATHSQGYIYTLARSGV TGASRILENDASAIIKTLKAFSPTPALLGFGISQKEHITNAKGMGADGVICGSALVKIIE ENLNDENAMLEKIKGFIGGMIF