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Structural highlights

Function

PETH_UNKP Catalyzes the hydrolysis of cutin, a polyester that forms the structure of plant cuticle (PubMed:22194294). Shows esterase activity towards p-nitrophenol-linked aliphatic esters (pNP-aliphatic esters), with a preference for short-chain substrates (C4 substrate at most) (PubMed:22194294, PubMed:24593046). Cannot hydrolyze olive oil (PubMed:22194294). Is also able to degrade poly(ethylene terephthalate), the most abundant polyester plastic in the world (PubMed:22194294, PubMed:32269349). Can also depolymerize poly(epsilon-caprolactone) (PCL), a synthetic aliphatic biodegradable polyester (PubMed:22194294).^{[1] [2] [3]}

References

1. ↑ Sulaiman S, Yamato S, Kanaya E, Kim JJ, Koga Y, Takano K, Kanaya S. Isolation of a novel cutinase homolog with polyethylene terephthalate-degrading activity from leaf-branch compost by using a metagenomic approach. Appl Environ Microbiol. 2012 Mar;78(5):1556-62. doi: 10.1128/AEM.06725-11. Epub, 2011 Dec 22. PMID:22194294 doi:http://dx.doi.org/10.1128/AEM.06725-11
2. ↑ Sulaiman S, You DJ, Kanaya E, Koga Y, Kanaya S. Crystal structure and thermodynamic and kinetic stability of metagenome-derived LC-cutinase. Biochemistry. 2014 Mar 25;53(11):1858-69. doi: 10.1021/bi401561p. Epub 2014 Mar, 13. PMID:24593046 doi:http://dx.doi.org/10.1021/bi401561p
3. ↑ Tournier V, Topham CM, Gilles A, David B, Folgoas C, Moya-Leclair E, Kamionka E, Desrousseaux ML, Texier H, Gavalda S, Cot M, Guemard E, Dalibey M, Nomme J, Cioci G, Barbe S, Chateau M, Andre I, Duquesne S, Marty A. An engineered PET depolymerase to break down and recycle plastic bottles. Nature. 2020 Apr;580(7802):216-219. doi: 10.1038/s41586-020-2149-4. Epub 2020 Apr, 8. PMID:32269349 doi:http://dx.doi.org/10.1038/s41586-020-2149-4