>sp|Q3M710|URE2_TRIV2 Urease subunit beta OS=Trichormus variabilis GN=ureB MIPGEIITPDGEIELNAGRNTVKLSVANAGDRPIQVGSHFHFYEVNHGLIFDRELALGMR LDIPAGTAVRFEPGDEKEVTLVPLVGSREVYGFNGRVNGEINAEGRGG