Ribosylnicotinamide kinase

In enzymology, a ribosylnicotinamide kinase (EC 2.7.1.22) is an enzyme that catalyzes the chemical reaction

ribosylnicotinamide kinase
Identifiers
EC no.2.7.1.22
CAS no.9030-61-9
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins
ATP + N-ribosylnicotinamide ADP + nicotinamide ribonucleotide

Thus, the two substrates of this enzyme are ATP and N-ribosylnicotinamide, whereas its two products are ADP and nicotinamide ribonucleotide.

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:N-ribosylnicotinamide 5'-phosphotransferase. This enzyme is also called ribosylnicotinamide kinase (phosphorylating). This enzyme participates in nicotinate and nicotinamide metabolism.

Health

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Studies show potential for obesity treatment and for longer healthier life. Ribosylnicotinamide kinase seems to activate similar genes that Resveratrol does.[citation needed]

Food

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The enzyme can be found in milk[1] and beer. Since the molecules are difficult to detect, it is expected that there are a lot more food products containing ribosylnicotinamide kinase.

References

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  1. ^ Bieganowski, Pawel & Brenner, Charles. (2004). Discoveries of Nicotinamide Riboside as a Nutrient and Conserved NRK Genes Establish a Preiss-Handler Independent Route to NAD+ in Fungi and Humans. Cell. 117. 495-502. 10.1016/S0092-8674(04)00416-7.
  • ROWEN JW, KORNBERG A (1951). "The phosphorolysis of nicotinamide riboside". J. Biol. Chem. 193 (2): 497–507. PMID 14907738.