>2f2fA (A:) observed residues (from ATOM records)
psepsnfmtlmgqngalltvwalakrnwlwaypniysqdfgnirnwkiepgkhreyfrfv
nqslgtcieaygnglihdtcsldklaqefellptdsgavviksvsqgrcvtynpvsptyy
stvtlstcdgateplrdqtwylappvleatavn