[Advances in poly(ethylene terephthalate) hydrolases].

Area of Science:

• Biotechnology
• Environmental Science
• Polymer Science

Background:

• Plastic accumulation, especially Poly(ethylene terephthalate) (PET), poses significant environmental and health risks due to its stable polymer structure.
• Enzymatic degradation presents a viable strategy for managing plastic waste and enabling recycling.
• The biodegradation pathway of PET serves as a model for other plastic types.

Approach:

• This review summarizes the origins and degradation capabilities of Poly(ethylene terephthalate) (PET) hydrolases.
• It details the degradation mechanism of PET by the enzyme IsPETase.
• Recent advancements in enzyme engineering for enhanced degradation are highlighted.

Key Points:

• Sources and degradation capacities of various PET hydrolases are discussed.
• The specific mechanism of PET degradation by IsPETase is elucidated.
• Engineered enzymes demonstrate significantly improved degradation efficiency.

Conclusions:

• Advances in PET hydrolases show potential for improved understanding of PET degradation mechanisms.
• Further exploration and engineering of efficient PET-degrading enzymes are facilitated by current research.
• This work supports the development of sustainable plastic recycling solutions.