>4czfA (A:) observed residues (from ATOM records)
isndiaidlgtantliyqkgkgivlnepsvvalrnkvvhavgieakqmlgrtpghmeair
pmrdgviadfevaeemikyfirkvhnrkgsgnpkvivcvpsgataverraindsclnaga
rrvglidepmaaaigaglpiheptgsmvvdigggttevavlslsgivysrsvrvggdkmd
eaiisymrrhhnlligettaerikkeigtarapglsidvkgrdlmqgvprevrisekqaa
dalaepvgqiveavkvaleatppelasdiadkgimltgggallrgldaeirdhtglpvtv
addplscvalgcgkvlehpkwmkgvlest