Cloning of Bacillus subtilis phytase gene construct in Escherichia coli

Phytase has a hydrolysis function of phytic acid, which yields inorganic phosphate. Bacillus species can produce thermostable alkaline phytase. The aim of this study was to isolate and clone a Phytase gene (Phy) from Bacillus subtilis in Escherichia coli.

In this study, the extracellular PhyC gene was isolated from Bacillus subtilis Phytase C. After purification of the bands, DNA fragment of Phy gene was cloned by T/A cloning technique, and the clone was transformed into Escherichia coli. Afterward, the pGEM-Phy was transferred into E. coli Top-10 strain and the recombinants were plated on LB agar containing 100 µg/ml ampicillin. The colonization of 1171 bp of gene Phytase C was confirmed by PCR. The presence of gene-targeting in vector was confirmed with enzymatic digestion by XhoI and XbaI restriction enzymes.

The Phytase gene was successfully cloned in E. coli. The result of cloning of 1171 bp Phytase gene was confirmed by PCR assay.

Our impression of this article is that several methods, such as using along with microbial, plant phytase reproduction, or low-phytic acid corn may be the better way from a single phytase.