Creating a Uricase-Overproducing Yeast for Uric Acid Detection
Author Information
Author(s): Dmytruk Kostyantyn V, Smutok Oleh V, Dmytruk Olena V, Schuhmann Wolfgang, Sibirny Andriy A
Primary Institution: Institute of Cell Biology, NAS of Ukraine
Hypothesis
Can Hansenula polymorpha be genetically modified to overproduce uricase for use in a microbial biosensor?
Conclusion
A strain of Hansenula polymorpha that overproduces uricase was successfully constructed, leading to the development of a cost-effective urate-selective microbial biosensor.
Supporting Evidence
- The UOX producing cells showed a 40-fold increase in UOX activity compared to the parental strain.
- The biosensor developed exhibited a detection limit of about 8 μM for urate.
- The method for screening recombinant strains was optimized for efficiency.
Takeaway
Scientists made a special yeast that can produce a lot of an enzyme to help detect uric acid, which is important for health.
Methodology
The study involved constructing uricase-overproducing strains of Hansenula polymorpha using microbiological techniques and evaluating their performance in a biosensor.
Limitations
The constructed strains exhibited lower UOX activity compared to commercially available recombinant UOX.
Digital Object Identifier (DOI)
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