>2c2vF (F:) observed residues (from ATOM records)
vkvprnfrlleeleegqkgvgdgtvswgleddedmtltrwtgmilgpprtiyenriyslk
iecgpkypeappfvrfvtkinmngvnssngvvdpraisvlakwqnsysikvvlqelrrlm
mskenmklpqppegqcysn