>sp|A0L6F1|URE2_MAGMM Urease subunit beta OS=Magnetococcus marinus (strain ATCC BAA-1437 / JCM 17883 / MC-1) OX=156889 GN=ureB PE=3 SV=1 MIPGELFPAPGDIILNAGCETLTLTVANGGDRPIQVGSHYHFAETNPALQFDRQRARGYR LDIPAGTAVRFEPGQARDVTLVPYGGRRQVVGFNGLVNGQLED