Sandbox Reserved 1846: Difference between revisions
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==Introduction== | ==Introduction== | ||
Leaf branch compost [https://en.wikipedia.org/wiki/Cutinase cutinase] <scene name='10/1075246/4eb0_in_pink/5'>(LCC)</scene> is a versatile enzyme that can break down both natural plant polymers and synthetic plastics.<ref name="Tournier">PMID:32269349</ref><ref name="Sui">PMID:37849919</ref>. Its biological function is to degrade [https://en.wikipedia.org/wiki/Cutin cutin], the waxy biopolymer on plant surfaces that prevents water loss and protects the plant from environmental stressors.<ref name="Lichtenhaler">PMID:9668620</ref> LCC was discovered in a [https://en.wikipedia.org/wiki/Compost compost] heap.<ref name="Ueda">PMID:34160605</ref><ref name="Kolattukudy">PMID:17779010</ref> | Leaf branch compost [https://en.wikipedia.org/wiki/Cutinase cutinase] <scene name='10/1075246/4eb0_in_pink/5'>(LCC)</scene> is a versatile enzyme that can break down both natural plant polymers and synthetic plastics.<ref name="Tournier">PMID:32269349</ref><ref name="Sui">PMID:37849919</ref>. Its biological function is to degrade [https://en.wikipedia.org/wiki/Cutin cutin], the waxy biopolymer on plant surfaces that prevents water loss and protects the plant from environmental stressors.<ref name="Lichtenhaler">PMID:9668620</ref> LCC was discovered in a [https://en.wikipedia.org/wiki/Compost compost] heap, where degradative enzymes are often found.<ref name="Ueda">PMID:34160605</ref><ref name="Kolattukudy">PMID:17779010</ref> | ||
Because cutinases are members of the α/β-hydrolase superfamily and can hydrolyze polymer esters, LCC has | Because cutinases are members of the α/β-hydrolase superfamily and can hydrolyze polymer esters, LCC has shown high efficiency in hydrolyzing [https://en.wikipedia.org/wiki/Polyethylene_terephthalate polyethylene terephthalate] (PET), which is a widely used plastic that contributes to pollution. Unlike many other PET-degrading enzymes, LCC has a high [https://en.wikipedia.org/wiki/Specificity_constant catalytic efficiency] ''and'' is thermostable, which means it can function at temperatures that are optimal for industrial recycling processes.<ref name="Khairul">PMID:36293501</ref><ref name="Burgin">PMID:38538850</ref> By breaking PET into its monomers, LCC promotes [https://en.wikipedia.org/wiki/Closed-loop_recycling closed-loop recycling] of plastic waste and reduces environmental accumulation.<ref name="Sui"/> | ||
[https://www.rcsb.org/structure/4EB0 4EB0] is the primary PDB file used throughout this page. The protein is an LCC mutant that has been optimized for thermostability. The model substrate is 2-HE(MHET)₃, a trimer of MHET [https://en.wikipedia.org/wiki/2-Hydroxyethyl_terephthalic_acid (mono-(2-hydroxy-ethyl) terephthalate)]. MHET is an intermediate in the depolymerization of PET.<ref name="Zhang">PMID:37945666</ref><ref name="Tournier"/> | [https://www.rcsb.org/structure/4EB0 4EB0] is the primary PDB file used throughout this page. The protein is an LCC mutant that has been optimized for thermostability. The model substrate is 2-HE(MHET)₃, a trimer of MHET [https://en.wikipedia.org/wiki/2-Hydroxyethyl_terephthalic_acid (mono-(2-hydroxy-ethyl) terephthalate)]. MHET is an intermediate in the depolymerization of PET.<ref name="Zhang">PMID:37945666</ref><ref name="Tournier"/> | ||
