>4bf4A (A:) observed residues (from ATOM records)
sppvldlgalgqdfaadpyptyarlraegpahrvrtpegnevwlvvgydraravladprf
skdwrnsttplteaeaalnhnmlesdpprhtrlrklvareftmrrvellrprvqeivdgl
vdamlaapdgradlmeslawplpitvisellgvpepdraafrvwtdafvfpddpaqaqta
maemsgylsrlidskrgqdgedllsalvrtsdedgsrltseellgmahillvaghettvn
liangmyallshpdqlaalradmtlldgaveemlryegpvesatyrfpvepvdldgtvip
agdtvlvvladahrtperfpdphrfdirrdtaghlafghgihfcigaplarleariavra
llercpdlaldvspgelvwypnpmirglkalpirwr