>1b6uA (A:) observed residues (from ATOM records)
hrkpsllahpgplvkseetvilqcwsdvrfqhfllhregkfkdtlhligehhdgvskanf
sigpmmqdlagtyrcygsvthspyqlsapsdpldivitglyekpslsaqpgptvlagesv
tlscssrssydmyhlsregeaherrfsagpkvngtfqadfplgpathggtyrcfgsfrds
pyewsnssdpllvsvtgnp