>2iy4B (B:) observed residues (from ATOM records) vdtkeflnhqvanlnvftvkihqihwymrghnfftlhekmddlysefgeqmdevaerlla iggspfstlkeflenasveeapytkpktmdqlmedlvgtlellrdeyqqgieltdkegdn vtndmliafkasidkhiwmfkaflgkaple