>2a1tD (D:) observed residues (from ATOM records)
lgfsfefteqqkefqatarkfareeiipvaaeydktgeypvplirrawelglmnthipen
cgglglgtfdacliseelaygctgvqtaiegnslgqmpiiiagndqqkkkylgrmteepl
mcaycvtepgagsdvagiktkaekkgdeyiingqkmwitnggkanwyfllarsdpdpkap
ankaftgfiveadtpgiqigrkelnmgqrcsdtrgivfedvkvpkenvligdgagfkvam
gafdktrpvvaagavglaqraldeatkyalerktfgkllvehqaisfmlaemamkvelar
msyqraawevdsgrrntyyasiakafagdianqlatdavqilggngfnteypveklmrda
kiyqiyegtsqiqrlivarehidkykn