Adenosylmethionine cyclotransferase

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adenosylmethionine cyclotransferase
Identifiers
EC no. 2.5.1.4
CAS no. 9030-34-6
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / QuickGO
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NCBI proteins

In enzymology, an adenosylmethionine cyclotransferase (EC 2.5.1.4) is an enzyme that catalyzes the chemical reaction

S-adenosyl-L-methionine 5'-methylthioadenosine + 2-aminobutan-4-olide

Hence, this enzyme has one substrate, S-adenosyl-L-methionine, and two products, 5'-methylthioadenosine and 2-aminobutan-4-olide.

This enzyme belongs to the family of transferases, specifically those transferring aryl or alkyl groups other than methyl groups. The systematic name of this enzyme class is S-adenosyl-L-methionine alkyltransferase (cyclizing). This enzyme is also called adenosylmethioninase.

Related Research Articles

<i>S</i>-Adenosyl methionine Chemical compound found in all domains of life with largely unexplored effects

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, transsulfuration, and aminopropylation. Although these anabolic reactions occur throughout the body, most SAM is produced and consumed in the liver. More than 40 methyl transfers from SAM are known, to various substrates such as nucleic acids, proteins, lipids and secondary metabolites. It is made from adenosine triphosphate (ATP) and methionine by methionine adenosyltransferase. SAM was first discovered by Giulio Cantoni in 1952.

Histone-arginine N-methyltransferase is an enzyme with systematic name S-adenosyl-L-methionine:histone-arginine Nomega-methyltransferase. This enzyme catalyses the following chemical reaction

<span class="mw-page-title-main">Adenosylhomocysteinase</span> Protein-coding gene in the species Homo sapiens

Adenosylhomocysteinase (EC 3.3.1.1, S-adenosylhomocysteine synthase, S-adenosylhomocysteine hydrolase, adenosylhomocysteine hydrolase, S-adenosylhomocysteinase, SAHase, AdoHcyase) is an enzyme that converts S-adenosylhomocysteine to homocysteine and adenosine. This enzyme catalyses the following chemical reaction

In enzymology, a calmodulin-lysine N-methyltransferase (EC 2.1.1.60) is an enzyme that catalyzes the chemical reaction

In enzymology, a carnosine N-methyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a [formate-C-acetyltransferase]-activating enzyme is an enzyme that catalyzes the chemical reaction

In enzymology, an adenosylmethionine hydrolase (EC 3.3.1.2) is an enzyme that catalyzes the chemical reaction

<span class="mw-page-title-main">Biotin synthase</span> Enzyme

Biotin synthase (BioB) is an enzyme that catalyzes the conversion of dethiobiotin (DTB) to biotin; this is the final step in the biotin biosynthetic pathway. Biotin, also known as vitamin B7, is a cofactor used in carboxylation, decarboxylation, and transcarboxylation reactions in many organisms including humans. Biotin synthase is an S-Adenosylmethionine (SAM) dependent enzyme that employs a radical mechanism to thiolate dethiobiotin, thus converting it to biotin.

In enzymology, an isonocardicin synthase is an enzyme that catalyzes the chemical reaction

In enzymology, a tRNA-uridine aminocarboxypropyltransferase is an enzyme that catalyzes the chemical reaction

5-hydroxyfuranocoumarin 5-O-methyltransferase is an enzyme with systematic name S-adenosyl-L-methionine:5-hydroxyfurocoumarin 5-O-methyltransferase. This enzyme catalyses the following chemical reaction

8-hydroxyfuranocoumarin 8-O-methyltransferase is an enzyme with systematic name S-adenosyl-L-methionine:8-hydroxyfurocoumarin 8-O-methyltransferase. This enzyme catalyses the following chemical reaction

<span class="mw-page-title-main">Uroporphyrinogen-III C-methyltransferase</span> Class of enzymes

Uroporphyrinogen-III C-methyltransferase, uroporphyrinogen methyltransferase, uroporphyrinogen-III methyltransferase, adenosylmethionine-uroporphyrinogen III methyltransferase, S-adenosyl-L-methionine-dependent uroporphyrinogen III methylase, uroporphyrinogen-III methylase, SirA, CysG, CobA, uroporphyrin-III C-methyltransferase, S-adenosyl-L-methionine:uroporphyrin-III C-methyltransferase) is an enzyme with systematic name S-adenosyl-L-methionine:uroporphyrinogen-III C-methyltransferase. This enzyme catalyses the following chemical reaction

Arsenite methyltransferase is an enzyme with systematic name S-adenosyl-L-methionine:arsenite As-methyltransferase. This enzyme catalyses the following chemical reaction

Glycine/sarcosine N-methyltransferase is an enzyme with systematic name S-adenosyl-L-methionine:glycine(or sarcosine) N-methyltransferase . This enzyme catalyses the following chemical reaction

Sarcosine/dimethylglycine N-methyltransferase is an enzyme with systematic name S-adenosyl-L-methionine:sarcosine(or N,N-dimethylglycine) N-methyltransferase . This enzyme catalyses the following chemical reaction

16S rRNA (adenine1518-N6/adenine1519-N6)-dimethyltransferase (EC 2.1.1.182, S-adenosylmethionine-6-N',N'-adenosyl (rRNA) dimethyltransferase, KsgA, ksgA methyltransferase) is an enzyme with systematic name S-adenosyl-L-methionine:16S rRNA (adenine1518-N6/adenine1519-N6)-dimethyltransferase. This enzyme catalyses the following chemical reaction

23S rRNA (uracil1939-C5)-methyltransferase (EC 2.1.1.190, RumA, RNA uridine methyltransferase A, YgcA) is an enzyme with systematic name S-adenosyl-L-methionine:23S rRNA (uracil1939-C5)-methyltransferase. This enzyme catalyses the following chemical reaction

TRNA (guanine10-N2)-dimethyltransferase (EC 2.1.1.213, PAB1283, N(2),N(2)-dimethylguanosine tRNA methyltransferase, Trm-G10, PabTrm-G10, PabTrm-m2 2G10 enzyme) is an enzyme with systematic name S-adenosyl-L-methionine:tRNA (guanine10-N2)-dimethyltransferase. This enzyme catalyses the following chemical reaction

Acyl-homoserine-lactone synthase is an enzyme with systematic name acyl-(acyl-carrier protein):S-adenosyl-L-methionine acyltranserase . This enzyme catalyses the following chemical reaction

References


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