>1ex4A (A:) SEQRES residues gsgqvdsspgiwqldcthlegkvilvavhvasgyieaevipaetgqetayfllklagrwp vktihtdngsnftgatvraacdwagikqedgipynpqsqgvvesmnkelkkiigqvrdqa ehlktavqmavfihnkkrkggiggysagerivdiiatdiqtkelqkqitkiqnfrvyyrd srnslwkgpakllwkgegavviqdnsdikvvprrkakiirdygkqmagddsvasrqded