>sp|A6VTV7|URE2_MARMS Urease subunit beta OS=Marinomonas sp. GN=ureB MIPGEIQVAEGVIELNVGRKTVKIRVENTGDRPVQIGSHYHFYEVNPALSFDRELTKGFR LNIASGTAVRFEPGQGREVELVEYAGTKTIYGFRGEVMGKLVGAE