>2fr2A (A:) observed residues (from ATOM records)
dlapalqalspllgswagrgagkyptirpfeyleevvfahvgkpfltytqqtravadgkp
lhsetgylrvcrpgcvelvlahpsgiteievgtysvtgdvielelstradgsiglaptak
evtaldrsyridgdelsyslqmravgqplqdhlaavlhrqr