>2if0B (B:) observed residues (from ATOM records)
ydylikllalgdsgvgkttflyrytdnkfnpkfittvgidfrekrvvydafkvhlqlwdt
aglerfrslttaffrdamgfllmfdltsqqsflnvrnwmsqlqanaycenpdivlignka
dlpdqrevnerqarelaekygipyfetsaatgqnveksvetlldlimkrmekcve