4.4.1.16 - 4.4.1.16 expressed in Brassica juncea using Agrobacterium tumefaciens to introduce genetic sequence, transformation results in enhanced enzyme activity but decreased Se tolerance 4.4.1.16 expressed in chloroplasts and cytosol of Arabidopsis sp., enhanced Se tolerance when enzyme is expressed in cytosol, decreased Se tolerance when expressed in chloroplasts 4.4.1.16 expressed in Escherichia coli BL21(DE3) 4.4.1.16 expressed in Escherichia coli JM109 4.4.1.16 expression in Escherichia coli 4.4.1.16 expression in Escherichia coli into the pGEM-T Easy vector for sequencing, 5’ constructs with deletions in the promoter region are subcloned into the promoterless luciferase expression vector 4.4.1.16 expression in Escherichia coli rosetta 4.4.1.16 recombinant expression in Escherichia coli strain BL21(DE3) 4.4.1.16 recombinant expression of GFP-tagged enzyme in spermatids of mature testes of transgenic mice