>2iy4N (N:) observed residues (from ATOM records)
vdtkeflnhqvanlnvftvkihqihwymrghnfftlhekmddlysefgeqmdevaerlla
iggspfstlkeflenasveeapytkpktmdqlmedlvgtlellrdeyqqgieltdkegdn
vtndmliafkasidkhiwmfkaflgkaple