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Medical Term:

active methyl

 

Definition: a methyl group attached to a quaternary ammonium ion or a tertiary sulfonium ion that can take part in transmethylation reactions, methyl groups in choline and in S-adenosyl-l-methionine, which are thus methyl donors.

© Copyright 2016 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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