>sp|Q1CRX0|TRPA_HELPH Tryptophan synthase alpha chain OS=Helicobacter pylori GN=trpA MRYQNMFETLKKQDKMAFIPFVTLGDPNYEWSFEIIKTLIDSGVSALELGFAFSDPVADG VTIQASHLRALKHASMAKNFQLLRALRDYNPHIPIGLLAYANLIFSYGVDGFYAQIKECG VDSVLIADMPLIEKELVIKSAQKHQIKQIFIASPNASVKDLEQVATHSQGYIYTLARSGV TGASHTLKNDASAIIKTLKTFSSTPALLGFGISKKEHITNAKGMGADGVICGSALVKIIE ENLNNENAMLEKIKGFIGGMIF