Identification of Alkaline Serine Protease from Goat Skin Metagenome
Author Information
Author(s): Pushpam Paul Lavanya, Rajesh Thangamani, Gunasekaran Paramasamy
Primary Institution: Madurai Kamaraj University, India
Hypothesis
Can a protease gene be identified from the goat skin surface metagenome?
Conclusion
The study successfully identified and characterized an alkaline serine protease from goat skin metagenome, which requires metal ions for its activity.
Supporting Evidence
- The protease gene was identified from a metagenomic library constructed from goat skin.
- Cloning and expression of the protease gene were performed in E. coli.
- The purified protease exhibited maximum activity at pH 10.5 and temperature 42°C.
Takeaway
Scientists found a special protein that helps break down other proteins from the skin of goats, which can be useful in cleaning products.
Methodology
Metagenomic DNA was isolated from goat skin, a plasmid library was constructed, and clones were screened for protease activity.
Limitations
The protease was expressed as inactive inclusion bodies in E. coli, requiring solubilization and refolding to regain activity.
Digital Object Identifier (DOI)
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