>1sm4B (B:) SEQRES residues iskkqdegvvvnkfrpkepyigrcllntkitgddapgetwhmvfstegeipyregqsigv iadgvdangkphklrlysiassalgdfgdsktvslcvkrlvytndkgeevkgvcsnflcd lkpgadvkitgpvgkemlmpkdpnatvimlgtgtgiapfrsflwkmffekhddykfngla wlflgvptsssllykeefekmkekapenfrldfavsreqtnekgekmyiqtrmaqyaeel wtllkkdntfvymcglkgmeqgiddimsslaakegidwadykkqlkkaeqwnvevy