Methionine (symbol Met or M) (/mɪˈθaɪəniːn/) is an essential amino acid in humans. As the precursor of other non-essential amino acids such as cysteine...

S-Adenosyl methionine (SAM), also known under the commercial names of SAMe, SAM-e, or AdoMet, is a common cosubstrate involved in methyl group transfers...

Oxidation of the sulfur of methionine results in methionine sulfoxide or methionine sulfone. The sulfur-containing amino acids methionine and cysteine are more...

enzymology, a methionine S-methyltransferase (EC 2.1.1.12) is an enzyme that catalyzes the chemical reaction S-adenosyl-L-methionine + L-methionine ⇌ {\displaystyle...

Methionine synthase (MS, MeSe, MTR) is primarily responsible for the regeneration of methionine from homocysteine in most individuals. In humans it is...

The enzyme methionine decarboxylase (EC 4.1.1.57) catalyzes the chemical reaction L-methionine ⇌ {\displaystyle \rightleftharpoons } 3-methylthiopropyl...

Methionine transaminase (EC 2.6.1.88, methionine-oxo-acid transaminase) is an enzyme with systematic name L-methionine:2-oxo-acid aminotransferase. This...

Methionine sulfoximine (MSO, also known as MetSox) is an irreversible glutamine synthetase inhibitor. It is the sulfoximine derivative of methionine with...

N-Formylmethionine (fMet, HCO-Met, For-Met) is a derivative of the amino acid methionine in which a formyl group has been added to the amino group. It is specifically...

biosynthesized from methionine by the removal of its terminal Cε methyl group. In the body, homocysteine can be recycled into methionine or converted into...

S-Methylmethionine (SMM) is a derivative of methionine with the chemical formula (CH3)2S+CH2CH2CH(NH3+)CO2−. This cation is a naturally-occurring intermediate...

variations of the disease, these being those presenting methionine homozygotes at codon 129 and methionine/valine heterozygotes, with some evidence that hypo-metabolism...

In enzymology, a methionine-glyoxylate transaminase (EC 2.6.1.73) is an enzyme that catalyzes the chemical reaction L-methionine + glyoxylate ⇌ {\displaystyle...

The enzyme methionine γ-lyase (EC 4.4.1.11, MGL) is in the γ-family of PLP-dependent enzymes. It degrades sulfur-containing amino acids to α-keto acids...

Hypermethioninemia is an excess of the amino acid methionine, in the blood. This condition can occur when methionine is not broken down properly in the body. Hypermethioninemia...

[Methionine synthase] reductase, or Methionine synthase reductase, encoded by the gene MTRR, is an enzyme that is responsible for the reduction of methionine...

[cytochrome-c]-methionine S-methyltransferase (EC 2.1.1.123) is an enzyme that catalyzes the chemical reaction S-adenosyl-L-methionine + [cytochrome c]-methionine ⇌...

Methionine sulfoxide reductase may refer to: Methionine-S-oxide reductase L-methionine (S)-S-oxide reductase This set index page lists enzyme articles...

by solvent evaporation; they belong to the triclinic space group P1. L-methionine L-methioninium hydrogen maleate also belongs to the amino acid family...

Peptide-methionine (S)-S-oxide reductase (EC 1.8.4.11, MsrA, methionine sulphoxide reductase A, methionine S-oxide reductase (S-form oxidizing), methionine sulfoxide...

of the metabolism of the amino acid methionine due to a deficiency of cystathionine beta synthase or methionine synthase. It is an inherited autosomal...

Methionine-S-oxide reductase (EC 1.8.4.5, methyl sulfoxide reductase I and II, acetylmethionine sulfoxide reductase, methionine sulfoxide reductase,...

a methionine racemase (EC 5.1.1.2) is an enzyme that catalyzes the chemical reaction L-methionine ⇌ {\displaystyle \rightleftharpoons } D-methionine Hence...

amino acids humans cannot synthesize are valine, isoleucine, leucine, methionine, phenylalanine, tryptophan, threonine, histidine, and lysine. Six other...

In enzymology, a D-methionine—pyruvate transaminase (EC 2.6.1.41) is an enzyme that catalyzes the chemical reaction D-methionine + pyruvate ⇌ {\displaystyle...

Methionine synthase reductase, also known as MSR, is an enzyme that in humans is encoded by the MTRR gene. Methionine is an essential amino acid required...

a neurotoxic dicarboxylic acid, causing neurological deterioration. Methionine synthase, coded by MTR gene, is a methyltransferase enzyme which uses...

L-Photo-methionine is a photo-reactive amino acid derivative of L-methionine that was synthetically formed in 2005. Protein are long polymer chains of...

Methionyl aminopeptidase (EC 3.4.11.18, methionine aminopeptidase, peptidase M, L-methionine aminopeptidase, MAP) is an enzyme. This enzyme catalyses the...

C-methyltransferase, S-adenosyl-L-methionine:uroporphyrin-III C-methyltransferase) is an enzyme with systematic name S-adenosyl-L-methionine:uroporphyrinogen-III C-methyltransferase...