Micrococcus luteus K-3-type glutaminase from Aspergillus oryzae RIB40 is salt-tolerant. 
Aspergillus oryzae RIB40 possesses the gene of glutaminase (Micrococcus luteus K-3-type glutaminase; AoGls), which has 40% homology with the salt-tolerant glutaminase from M. luteus K-3 (Micrococcus glutaminase).  It was found that AoGls is a salt-tolerant enzyme, and its properties are similar to those of Micrococcus glutaminase.