>3up2A (A:) observed residues (from ATOM records)
kkrqwaledfeigrplgkgkfgnvylarekqskfilalkvlfkaqlekagvehqlrreve
iqshlrhpnilrlygyfhdatrvylileyaplgtvyrelqklskfdeqrtatyitelana
lsychskrvihrdikpenlllgsagelkiadfgwsvhapssrrdtlcgtldylppemieg
rmhdekvdlwslgvlcyeflvgkppfeantyqetykrisrveftfpdfvtegardlisrl
lkhnpsqrpmlrevlehpwitanssk