>4rrtA (A:) observed residues (from ATOM records)
gklppgprplpllgnllqmdrrgllksflrfrekygdvftvhlgprpvvmlcgveairea
lvdkaeafsgrgkiamvdpffrgygvifangnrwkvlrrfsvttmrdfkrsveeriqeea
qclieelrkskgalmdptflfqsitaniicsivfgkrfhyqdqeflkmlnlfyqtfslis
svfgqlfelfsgflkhfpgahrqvyknlqeinayighsvekhretldpsaprdlidtyll
hmekeksnahsefshqnlnlntlslffagtettsttlrygfllmlkyphvaervyreieq
vigphrppelhdrakmpyteaviyeiqrfsdllpmgvphivtqhtsfrgyiipkdtevfl
ilstalhdphyfekpdafnpdhfldangalkkteafipfslgkriclgegiaraelflff
ttilqnfsmaspvapedidltpqecgvgkipptyqirflpr