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Gamma-Glutamylmethylamide
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γ-Glutamylmethylamide (gamma-Glutamylmethylamide, abbrev. ''GMA'', synonyms ''N-methyl-L-glutamine'', ''metheanine'') is an amino acid analog of the proteinogenic amino acids L-glutamic acid and L-glutamine, found primarily in plant and fungal species; simply speaking, it is L-glutamine methylated on the amide nitrogen. It is an identified an important biosynthetic intermediate allowing bacteria (e.g., methanotrophs) use of methylated amines as carbon and nitrogen source for growth (and so of significant biotechnological interest). Like its close relative theanine, it is a pharmacologically active constituent of green tea, with preliminary evidence for at least comparable activity to theanine as a hypotensive.
== See also ==
* Theanine
* Health effects of tea
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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