>sp|A8G4K8|URE2_PROM2 Urease subunit beta OS=Prochlorococcus marinus GN=ureB
MSNFIPGEIIPEKGEIELNLGKEIRTVTVSNSGDRPVQVGSHYHFFEANKALIFDRKITF
GMRLNIPAGTAIRFEPGDTTDVKLVPFSGLRNVYGFNSLVNGSLDN