>2k61A (A:) observed residues (from ATOM records)
qlteeqiaefkeafslfdkdgdgtittkelgtvmrslgqnpteaelqdminevdadgdgt
idfpefltmmarkmkdtdseeeireafrvfdkdgngyisaaelrhvmtnlgekltdeevd
emireadidgdgqvnyeefvqmmtak