What does methylation mean?

Here's a list of possible definitions for the term methylation:


Wiktionary

  1. methylation(Noun)

    the addition of a methyl group to a molecule

  2. methylation(Noun)

    the addition of a methyl group to cytosine and adenine residues in DNA that leads to the epigenetic modification of DNA and the reduction of gene expression and protein production

  3. Origin: methyl + -ation

Freebase

  1. Methylation

    In the chemical sciences, methylation denotes the addition of a methyl group to a substrate or the substitution of an atom or group by a methyl group. Methylation is a form of alkylation with a methyl group, rather than a larger carbon chain, replacing a hydrogen atom. These terms are commonly used in chemistry, biochemistry, soil science, and the biological sciences. In biological systems, methylation is catalyzed by enzymes; such methylation can be involved in modification of heavy metals, regulation of gene expression, regulation of protein function, and RNA metabolism. Methylation of heavy metals can also occur outside of biological systems. Chemical methylation of tissue samples is also one method for reducing certain histological staining artifacts.

U.S. National Library of Medicine

  1. Methylation

    Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed)

Numerology

  1. Chaldean Numerology

    The numerical value of methylation in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of methylation in Pythagorean Numerology is: 7

Images & Illustrations of methylation

  1. methylationmethylationmethylation



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