>1k90F (F:) observed residues (from ATOM records)
teeqiaefkeafslfdkdgdgtittkelgtvmrslgqnpteaelqdminevdadgngtid
fpefltmmarkmkdtdseeeireafrvfdkdgngyisaaelrhvmtnlgekltdeevdem
ireadidgdgqvnyeefvqmmta