>1s26F (F:) observed residues (from ATOM records) teeqiaefkeafslfdkdgdgtittkelgtvmrslgqnpteaelqdminevdadgngtid fpefltmmarkmkdtdseeeireafrvfdkdgngyisaaelrhvmtnlgekltdeevdem ireadidgdgqvnyeefvqmmta