>1zbxB (B:) SEQRES residues ekkfsteeeyvsprflvadgflidlaeekpinpkdprlltllkdhqramidqmnlvkwnd fkkyqdpiplkaktlfkfckqikkkflrgadfklhtlpteanlkyepermtvlcscvpil lddqtvqylyddslehhhhh