>4qd7B (B:) observed residues (from ATOM records)
slwrqtpdleqlnasqknsigdllgirfeafddesltasmpvdsrthqpfgllhggasvv
laeslgsmasylcvdtsqyycvglevnanhlrglrsgrvtavaraihlgrtthvwdirls
gddgkpsciarltmavvpl