>1xapA (A:) observed residues (from ATOM records)
aelddltekirkahqetfpslcqlgkyttnssadhrvrldlglwdkfselatkciikive
fakrlpgftgltiadqitllkaacldililrictrytpeqdtmtfsdgltlnrtqmhnag
fgpltdlvftfanqllplemddtetgllsaiclicgdrqdleeptkvdklqepllealki
yirkrrphmfpkilmkitdlrsisakgaervitlkmeipgsmppliqemlen