In enzymology, a rhamnulokinase (EC 2.7.1.5) is an enzyme that catalyzes the chemical reaction

rhamnulokinase
Identifiers
EC no.2.7.1.5
CAS no.9030-52-8
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
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PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
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NCBIproteins
ATP + L-rhamnulose ADP + L-rhamnulose 1-phosphate

Thus, the two substrates of this enzyme are ATP and L-rhamnulose, whereas its two products are ADP and L-rhamnulose 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:L-rhamnulose 1-phosphotransferase. Other names in common use include RhuK, rhamnulokinase (phosphorylating), L-rhamnulokinase, L-rhamnulose kinase, and rhamnulose kinase. This enzyme participates in pentose and glucuronate interconversions and fructose and mannose metabolism. This enzyme can catalyze the xylulose phosphorilation:[1]

ATP + L-Xylulose ADP + L-Xylulose 1-phosphate

Structural studies

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As of late 2007, 4 structures have been solved for this class of enzymes by Grueninger and Schulz with PDB accession codes 2CGJ, 2CGK, 2CGL, and 2UYT.

References

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  1. ^ "Kegg Orthology: K00848".