Ribosylnicotinamide kinase
| ribosylnicotinamide kinase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 2.7.1.22 | ||||||||
| CAS no. | 9030-61-9 | ||||||||
| 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 | ||||||||
| |||||||||
In enzymology, a ribosylnicotinamide kinase (EC 2.7.1.22) is an enzyme that catalyzes the chemical reaction
- 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
[edit]Studies show potential for obesity treatment and for longer healthier life. Ribosylnicotinamide kinase seems to activate similar genes that Resveratrol does.[citation needed]
Food
[edit]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
[edit]- ^ 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.
