Methylthioadenosine nucleosidase

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methylthioadenosine nucleosidase
Identifiers
EC no. 3.2.2.16
CAS no. 50812-28-7
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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PMC articles
PubMed articles
NCBI proteins

In enzymology, a methylthioadenosine nucleosidase (EC 3.2.2.16) is an enzyme that catalyzes the chemical reaction

S-methyl-5'-thioadenosine + H2O S-methyl-5-thio-D-ribose + adenine

Thus, the two substrates of this enzyme are S-methyl-5'-thioadenosine and H2O, whereas its two products are S-methyl-5-thio-D-ribose and adenine.

This enzyme belongs to the family of hydrolases, specifically those glycosylases that hydrolyse N-glycosyl compounds. The systematic name of this enzyme class is S-methyl-5'-thioadenosine adeninehyrolase. Other names in common use include 5'-methylthioadenosine nucleosidase, MTA nucleosidase, MeSAdo nucleosidase, and methylthioadenosine methylthioribohydrolase. This enzyme participates in urea cycle and metabolism of amino groups and methionine metabolism.

Structural studies

As of late 2007, 6 structures have been solved for this class of enzymes, with PDB accession codes 1NC1, 1NC3, 1Y6Q, 1Y6R, 1ZOS, and 2H8G.

Related Research Articles

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<span class="mw-page-title-main">ADP-ribosyl cyclase</span>

In enzymology, a ADP-ribosyl cyclase/cyclic ADP-ribose hydrolase (EC 3.2.2.6) is a bifunctional enzyme that catalyzes the chemical reaction

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<span class="mw-page-title-main">Purine nucleosidase</span>

In enzymology, a purine nucleosidase (EC 3.2.2.1) is an enzyme that catalyzes the chemical reaction

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<span class="mw-page-title-main">S-methyl-5'-thioadenosine phosphorylase</span>

In enzymology, a S-methyl-5'-thioadenosine phosphorylase is an enzyme that catalyzes the chemical reaction

In enzymology, a S-methyl-5-thioribose kinase is an enzyme that catalyzes the chemical reaction

S-methyl-5'-thioinosine phosphorylase is an enzyme with systematic name S-methyl-5'-thioinosine:phosphate S-methyl-5-thio-alpha-D-ribosyl-transferase. This enzyme catalyses the following chemical reaction

S-methyl-5'-thioadenosine deaminase (EC 3.5.4.31, MTA deaminase, 5-methylthioadenosine deaminase) is an enzyme with systematic name S-methyl-5'-thioadenosine amidohydrolase. This enzyme catalyses the following chemical reaction

<span class="mw-page-title-main">5′-Methylthioadenosine</span> Chemical compound

5′-Methylthioadenosine is S-methyl derivative of the adenosine. It is an intermediate in the methylthioadenosine (MTA) cycle, also known as the methionine salvage pathway that is universal to aerobic life.

References