>2ntdA (A:) observed residues (from ATOM records) hhhhhfnlppgnykkpkllycsngghflrilpdgtvdgtrdrsdqhiqlqlsaesvgevy ikstetgqylamdtdgllygsqtpneeclflerleenhyntyiskkhaeknwfvglkkng svkrgprthygqkailflclpv