>3bx4A (A:) SEQRES residues gledcdfgwspydqhcyqafneqktwdeaekfcraqengahlasiesngeadfvswlisq kdeladedyvwiglraqnkeqqcssewsdgssvsyenlidlhtkkcgalekltgfrkwvn yyceqmhafvckllpy