>1op4A (A:) SEQRES residues ghhhhhhhhhhssghiddddkhmeasgeialcktgfpedvysavlpkdvhegqpllnvkf sncnrkrkvqyessepadfkvdedgtvyavrsfpltaeqakfliyaqdketqekwqvavn lsreptlteepmkepheieeivfprqlakhsgalqrqkr