>4ffvB (B:) observed residues (from ATOM records)
rtytladylkntfrvksyslrwvsdseylykqennillfnaehgnssiflenstfeifgd
sisdysvspdrlfvlleynyvkqwrhsytasysiydlnkrqliteekipnntqwitwsqe
ghklayvwkndiyvkiephlpshritstgkenvifngindwvyeeeifgaysalwwspng
tflayaqfndtgvplieysfysdeslqypktvwipypkagavnptvkffivntdslsstt
ttipmqitapasvttgdhylcdvawvsedrislqwlrriqnysvmaicdydkttlvwncp
ttqehietsatgwcgrfrpaephftsdgssfykivsdkdgykhicqfqkdrkpeqvctfi
tkgawevisiealtsdylyyisneykempggrnlykiqltdhtnkkclscdlnpercqyy
svslskeakyyqlgcrgpglplytlhrstdqkelrvlednsaldkmlqdvqmpskkldfi
vlnetrfwyqmilpphfdkskkypllidvyagpcsqkadaafrlnwatylasteniivas
fdgrgsgyqgdkimhainkrlgtlevedqieaarqflkmgfvdskrvaiwgwsyggyvts
mvlgsgsgvfkcgiavapvsrweyydsvyterymglptpednldhyrnstvmsraenfkq
veyllihgtaddnvhfqqsaqiskalvdagvdfqamwytdedhgiasstahqhiyshmsh
flqqcfslr