S-methyl-5-thioribose kinase

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S-methyl-5-thioribose kinase
Identifiers
EC no. 2.7.1.100
CAS no. 68247-56-3
Databases
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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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In enzymology, a S-methyl-5-thioribose kinase (EC 2.7.1.100) is an enzyme that catalyzes the chemical reaction

ATP + S-methyl-5-thio-D-ribose ADP + S-methyl-5-thio-alpha-D-ribose 1-phosphate

Thus, the two substrates of this enzyme are ATP and S-methyl-5-thio-D-ribose, whereas its two products are ADP and S-methyl-5-thio-alpha-D-ribose 1-phosphate.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is ATP:S-methylmethyl-5-thio-D-ribose 1-phosphotransferase. Other names in common use include 5-methylthioribose kinase (phosphorylating), methylthioribose kinase, 5-methylthioribose kinase, and ATP:S5-methyl-5-thio-D-ribose 1-phosphotransferase. This enzyme participates in methionine metabolism.

Structural studies

As of late 2007, 6 structures have been solved for this class of enzymes, with PDB accession codes 2OLC, 2PU8, 2PUI, 2PUL, 2PUN, and 2PUP.

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References


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