>sp|B3QGK3|URE2_RHOPT Urease subunit beta OS=Rhodopseudomonas palustris GN=ureB MIPGELFIEDGEIELNAGRKTVTLTVSNTGDRPIQVGSHYHFFETNPALKFDRGKARGMR LDIAAGTAVRFEPGQSRDVQLVELAGKRTIYGFRGDVMGKL