>1qx4A (A:) observed residues (from ATOM records)
hmitlenpdikyplrlidkeilshdtrrfrfalpspqhilglpigqhiylstridgnlvi
rpytpvssdddkgfvdlvvkvyfkeaggkmpqylenmnigdtiefrgpngllvyqgkgkf
airadkksnpvvrtvksvgmiaggtgitpmlqviravlkdpndhtvcyllfanqsekdil
lrpeleelrnehssrfklwytvdkapdawdysqgfvneemirdhlpppgeetlilmcgpp
pmiqfaclpnlervghpkercftf