>sp|A1VKW4|URE2_POLNA Urease subunit beta OS=Polaromonas naphthalenivorans GN=ureB MIPGELITDGPDHLLNEGRRTVTLVVQNTADRPIQVGSHYHFAETNAALGFDRDAARGMR LNIASGTAVRFEPGQQRTVELVDFAGERKIYGFRGLIQGAL