polyamine

[pol-ee-uh-meen, -am-in]

noun

Chemistry.

1. a compound containing more than one amino group.

Word History and Origins

Origin of polyamine¹

First recorded in 1860–65; poly- + -amine

Example Sentences

By using stable isotope tracers and analyzing gene expression, the researchers showed that S. gordonii releases a substance called ornithine that prompts F. nucleatum to produce more of a molecule called polyamine.

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Because F. nucleatum needs methionine to produce polyamine, this enhanced polyamine production activates its methionine salvage pathway, which in turn results in increased CH3SH production.

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Spermidine is a type of molecule called a polyamine.

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This finding led the authors to speculate that polyamine export might be involved in protecting cells against oxidative stress.

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Although yeast cells have not previously been reported to produce cadaverine, they make another polyamine, putrescine, by decarboxylating the amino acid ornithine4.

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