>1k90E (E:) observed residues (from ATOM records)
teeqiaefkeafslfdkdgdgtittkelgtvmrslgqnpteaelqdminevdadgngtid
fpefltmmarkmkdtdseeeireafrvfdkdgngyisaaelrhvmtnlgekltdeevdem
ireadidgdgqvnyeefvqmmta