>2f7sB (B:) observed residues (from ATOM records)
ydylikllalgdsgvgkttflyrytdnkfnpkfittvgidfrekrvvynakafkvhlqlw
dtagqerfrslttaffrdamgfllmfdltsqqsflnvrnwmsqlqanaycenpdivlign
kadlpdqrevnerqareladkygipyfetsaatgqnvekavetlldlimkrmeqcv