>4u61A (A:) observed residues (from ATOM records)
ievlnlvtgpdsittielylntrmgqndeskdnygysekvtvanssdqdkptsgeiptys
tarinlpmlnedltcntltmweavsvktevvgvsslvnvhmatkrmyddkgigfpvegmn
fhmfavggeplelqfltgnyrtdysandklvvppikhqstqglnphykqkltkdgafpve
cwcpdpsknentryygsytggqstppvlqftntvttvlldengvgplckgdglyvsccdi
vgflvgkdgdmqyrglpryfnillrkrtvrn