1. Enhanced biodegradation activity toward polyethylene by fusion protein of anchor peptide and Streptomyces sp. strain K30 latex clearing protein.
- Author
-
Kong D, Zhang H, Yuan Y, Wu J, Liu Z, Chen S, Zhang F, and Wang L
- Subjects
- Polyethylene, Bacterial Proteins chemistry, Peptides metabolism, Carbon metabolism, Biodegradation, Environmental, Latex chemistry, Streptomyces
- Abstract
Polyethylene is the most commonly used plastic product, and its biodegradation is a worldwide problem. Latex clearing protein derived from Streptomyces sp. strain K30 (Lcp
K30 ) has been reported to be able to break the carbon-carbon double bond inside oxidized polyethylene and is an effective biodegradation enzyme for polyethylene. However, the binding of the substrate to the enzyme was difficult due to the hydrophobic nature of polyethylene. Therefore, to further improve the efficiency of LcpK30 , the effect of different anchor peptides on the binding capacity of LcpK30 to the substrate was screened in this study. The results of fluorescence confocal microscopy showed that the anchoring peptide LCI had the most significant improvement in effect and was finally selected for further application in a UV-irradiated PE degradation system. The degradation results showed that LCI was able to improve the degradation efficiency of LcpK30 by approximately 1.15 times in the presence of equimolar amounts of protein compared with wild-type. This study further improves the application of LcpK30 in the field of polyethylene degradation by modification., Competing Interests: Declaration of competing interest The authors declare that they have no conflicts of interests., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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