>1yl4F (F:) observed residues (from ATOM records) gnkihpigfrlgitrdwesrwyagkkqyrhllledqrirgllekelysaglarvdieraa dnvavtvhvakpgvvigrggerirvlreelakltgknvalnvqevqnpnlsaplvaqrva eqierrfavrraikqavqrvmesgakgakvivsgriggaeqartewaaqgrvplhtlran idygfalarttygvlgvkayiflgev