>4c3pA (A:) observed residues (from ATOM records)
krqwaledfeigrplgkgkfgnvylarekqskfilalkvlfkaqlekagvehqlrrevei
qshlrhpnilrlygyfhdatrvylileyaplgtvyrelqklskfdeqrtatyitelanal
sychskrvihrdikpenlllgsagelkiadfgwsvhapssrrttlcgtldylppemiegr
mhdekvdlwslgvlcyeflvgkppfeantyqetykrisrveftfpdfvtegardlisrll
khnpsqrpmlrevlehpwitanss