>1xfxR (R:) observed residues (from ATOM records)
qlteeqiaefkeafslfdkdgdgtittkelgtvmrslgqnpteaelqdminevdadgngt
idfpefltmmarkmkdtdseeeireafrvfdkdgngyisaaelrhvmtnlgekltdeevd
qmireadidgdgqvnyeefvqmmtak