The new urease-encoding gene was designated Eu5 and its product SBU-III.
SBU-III has a shorter amino acid sequence since many gaps are found.
A mutation in a highly conserved amino acid residue suggests absence of ureolytic activity.
Eu5 transcripts were detected in seeds, roots of young plants and embryos of developing seeds.
SBU-III is probably not involved in nitrogen availability in soybean.