Production of Hyaluronidase from Vespa tropica in Yeast
Author Information
Author(s): Janpan Piyapon, Bernhard Schmelzer, Anuwatchakij Klamrak, Patthana Tastub, Tewa Upathanpreecha, Shaikh Shahinur Rahman, Jaran Nabnueangsap, Yutthakan Saengkun, Prapenpuksiri Rungsa, Diethard Mattanovich, Sakda Daduang
Primary Institution: Khon Kaen University, Thailand
Hypothesis
Can the hyaluronidase enzyme from Vespa tropica be effectively produced in the Pichia pastoris expression system?
Conclusion
The study successfully produced a glycosylated form of VesT2a with significantly higher hyaluronidase activity compared to its crude venom and E. coli-expressed counterparts.
Supporting Evidence
- The recombinant VesT2a showed a specific activity of 4238.37 U/mg, significantly higher than the crude venom.
- VesT2a produced in Pichia pastoris was glycosylated, affecting its molecular weight.
- The study utilized a methanol-induced expression system for higher protein yield.
- Molecular docking analyses supported the enzyme's catalytic activity.
- Quercetin and gallic acid were identified as inhibitors of VesT2a activity.
Takeaway
Scientists figured out how to make a special enzyme from a wasp in yeast, and it works really well! This could help with medicine.
Methodology
The study used the Pichia pastoris expression system to produce the VesT2a gene, confirmed gene integration, and analyzed protein yield and activity.
Limitations
The study noted potential degradation of the protein by endogenous proteases in yeast, which could affect yield and activity.
Digital Object Identifier (DOI)
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