>3lf2D (D:) observed residues (from ATOM records)
ydlseavavvtggssgiglatvellleagaavafcardgerlraaesalrqrfpgarlfa
svcdvldalqvrafaeacertlgcasilvnnagqgrvstfaettdeawseelqlkffsvi
hpvraflpqlesradaaivcvnsllasqpephmvatsaaragvknlvrsmafefapkgvr
vngiliglvesgqwrrrfeareereldwaqwtaqlarnkqiplgrlgkpieaarailfla
splsayttgshidvsgglsrha