phytochelatin
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thumb|300px|Chemical structure of phytochelatin. n = 2–11.
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thumb|300px|Chemical structure of phytochelatin. n = 2–11.
Phytochelatins are oligomers of glutathione, produced by the enzyme phytochelatin synthase. They are found in plants, fungi, nematodes and all groups of algae including cyanobacteria. Phytochelatins act as chelators, and are important for heavy metal detoxification. They are abbreviated PC2 through PC11.
Excerpted from Wikipedia’s “phytochelatin” article, available under the CC BY-SA 4.0 licence.