enzyme engineering – mycolab.ai

Computer-directed rational engineering of dioxygenase TcsAB for triclosan biodegradation under cold conditions

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Scientists engineered a special enzyme called TcsAB to work better at cold temperatures, enabling it to break down triclosan, a harmful antibacterial chemical that pollutes our water. By using computer simulations and strategic mutations, they created a modified enzyme that degrades triclosan 2.5 times more efficiently at 15°C. When inserted into bacteria, this engineered enzyme helps clean up triclosan pollution in natural environments without requiring energy-intensive heating.

Enhancing the Substrate Adaptability of Laccase through Ancestral Sequence Reconstruction for Applications in Mycotoxin Detoxification

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Researchers used evolutionary analysis to redesign a fungal enzyme called laccase to better detoxify harmful mold toxins found in grains. The new engineered enzyme (LacANC278) can break down both aflatoxin and zearalenone toxins much more effectively than the original enzyme, and converts them into less harmful substances. This enzyme works without expensive helper chemicals and works well at room temperature, making it practical for treating contaminated corn and other grains.

Proteolytic and non-proteolytic mechanisms of keratin degradation in Onygena corvina revealed by a proteogenomic approach

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Feathers and wool from the poultry and textile industries create massive waste problems because they are very difficult to break down. Researchers discovered that a fungus called Onygena corvina can break down these tough materials using a sophisticated combination of over 70 different proteins. The fungus doesn’t just use cutting enzymes (proteases) but also uses helper proteins that weaken the structure first by removing chemical modifications and breaking certain chemical bonds. Interestingly, the fungus is even more effective when given both feather and wool together, suggesting these waste streams could be processed simultaneously.

Techno-economic analysis of a novel laccase production process utilizing perennial biomass and the aqueous phase of bio-oil

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Researchers developed a new method to produce laccase, a useful enzyme with many industrial applications, by growing oyster mushrooms on prairie plants and waste materials from bio-oil production. Through optimization experiments and economic modeling, they found that this process could produce laccase at prices significantly lower than current commercial enzyme products, making it economically viable at small to moderate production scales. The method has the added benefit of providing farmers with a financial incentive to grow perennial prairie plants instead of traditional crops, supporting ecological and soil health improvements.

Applications of Microbial Organophosphate-Degrading Enzymes to Detoxification of Organophosphorous Compounds for Medical Countermeasures against Poisoning and Environmental Remediation

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Organophosphate compounds are toxic chemicals used as pesticides and banned chemical weapons that pose serious health and environmental risks. Scientists have discovered and engineered special enzymes from bacteria and other microorganisms that can break down these toxic compounds. These enzymes can be used as medical treatments to protect people exposed to organophosphates or as environmental cleanup tools to decontaminate poisoned soil and water.

Engineering bacterial biocatalysts for the degradation of phthalic acid esters

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Phthalic acid esters (PAEs) are chemicals used to make plastics flexible that can leak into the environment and harm human health. Scientists are engineering bacteria with improved enzymes to break down PAEs more efficiently through a process called bioremediation. The review discusses how bacteria naturally degrade these pollutants and outlines strategies to make this process faster and more practical for cleaning contaminated environments.

Vinigrol Tricyclic Scaffold Biosynthesis Employs an Atypical Terpene Cyclase and a Multipotent Cyclization Cascade

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Scientists have discovered how a fungus produces vinigrol, a complex molecule with potential health benefits including lowering blood pressure and reducing inflammation. Using advanced computational tools and genetic engineering, researchers identified the specific genes and enzymes the fungus uses to build this molecule’s intricate three-ring structure. By modifying a key enzyme, they were able to create an entirely new diterpene molecule that doesn’t exist in nature, demonstrating the potential to engineer biological systems to produce novel medicinal compounds.

Scalable Hybrid Synthetic/Biocatalytic Route to Psilocybin

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Researchers developed a new method to manufacture psilocybin, a promising therapeutic compound from magic mushrooms being tested to treat depression. Instead of using toxic chemicals, they replaced a difficult chemical step with an enzyme from the mushroom itself called PsiK. This approach produced gram amounts of pure psilocybin efficiently and could eventually lower costs for future medical use.

PRMT5 promotes cellulase production by regulating the expression of cellulase gene eg2 through histone methylation in Ganoderma lucidum

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Scientists discovered that a protein called PRMT5 helps mushrooms (Ganoderma lucidum) produce more cellulase enzymes, which break down plant materials like corn straw and corn cobs. By controlling a specific gene called eg2 through a chemical modification on histone proteins, PRMT5 increases enzyme production. This discovery could help industries produce cellulase more efficiently and sustainably convert agricultural waste into useful sugars for biofuels and other products.

Glucose-6-Phosphate Dehydrogenase Modulates Shiraia Hypocrellin A Biosynthesis Through ROS/NO Signaling in Response to Bamboo Polysaccharide Elicitation

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Researchers discovered that a naturally derived compound from bamboo boosts the production of hypocrellin A, a promising cancer-fighting and antimicrobial agent made by a special fungus. By studying a key enzyme called G6PDH, they found that it acts as a molecular switch controlling hypocrellin production when the fungus senses bamboo components. This discovery enables cost-effective large-scale production of this powerful medicine through simple fermentation, potentially making novel cancer treatments and antibiotics more accessible.

Research Topic: enzyme engineering