>1xx5C (C:) observed residues (from ATOM records)
rrkkkqkeivdlhnslrrrvsptasnmlkmewypeaasnaerwantcslnhspdnlrvle
giqcgesiymssnartwteiihlwhdeyknfvygvganppgsvtghytqivwyqtyragc
avsycpssawsyfyvcqycpsgnfqgktatpyklgppcgdcpsacdnglctnpctiynkl
tncdsllkqsscqddwiksncpascfcrnkii