>4gyvB (B:) observed residues (from ATOM records) gphmedeayfiakeilatertylkdlevitvwfrsvlikeeampaalmallfsnidpvye fhrgflheveqrlalwegpssahlkgdhqrigdillrnmrqlkeftsyfqrhdevltele katkhckkleavykefelqkvcylplntfllkpvqrlvhyrlllsrlcahyspghrdyad chealkaitevttelqqsltrlenlqkltelqrdlv