>7nlzA (A:) observed residues (from ATOM records)
iealpthikaqvlaealpwlkqlhgkvvvvkyggnamtddtlrrafaadmaflrncgihp
vvvhgggpqitamlrrlgiegdfkggfrvttpevldvarmvlfgqvgrelvnlinahgpy
avgitgedaqlftavrrsvtvdgvatdiglvgdvdqvntaamldlvaagripvvstlapd
adgvvhninadtaaaavaealgaekllmltdidglytrwpdrdslvseidtgtlaqllpt
lesgmvpkveaclraviggvpsahiidgrvthcvlvelftdagtgtkvvrg