>2iy4P (P:) observed residues (from ATOM records)
vdtkeflnhqvanlnvftvkihqihwymrghnfftlhekmddlysefgeqmdevaerlla
iggspfstlkeflenasveeapytkpktmdqlmedlvgtlellrdeyqqgieltdkegdn
vtndmliafkasidkhiwmfkaflgkaple