>3nxgD (D:) observed residues (from ATOM records)
vevlevktgvdsitevecfltpemgdpdehlrgfsksisisdtfesdspnrdmlpcysva
riplpnlilmweavtlktevigvtslmnvhsngqathdngagkpvqgtsfhffsvggeal
elqgvlfnyrtkypdgtifpknatvqsqvmntehkayldknkaypvecwvpdptrnentr
yfgtltggenvppvlhitntattvlldefgvgplckgdnlylsavdvcgmftnrsgsqqw
rglsryfkvqlrkrrvkn