2.7.1.22: ribosylnicotinamide kinase
This is an abbreviated version!
For detailed information about ribosylnicotinamide kinase, go to the full flat file.
Reaction
Synonyms
kinase, ribosylnicotinamide (phosphorylating), More, muscle-specific beta1 integrin binding protein, NadR, nicotinamide ribose kinase, nicotinamide riboside kinase, nicotinamide riboside kinase 1, nicotinamide riboside kinase 2, nicotinamide riboside kinase-2, NmR-K, NMRK1, NMRK2, NR kinase 1, Nrk, NRK-2, NRK1, Nrk2, Nrk2b
ECTree
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Substrates Products
Substrates Products on EC 2.7.1.22 - ribosylnicotinamide kinase
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REACTION DIAGRAM
phosphate + nicotinamide riboside
nicotinamide + ribose-1-phosphate
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r
ADP + beta-nicotinamide D-ribonucleotide
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-
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?
ATP + 1-(beta-D-ribofuranosyl)-nicotinamide
ADP + beta-nicotinamide D-ribonucleotide
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-
-
?
ATP + 1-(beta-D-ribofuranosyl)-nicotinamide
ADP + beta-nicotinamide D-ribonucleotide
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-
-
?
ATP + 1-(beta-D-ribofuranosyl)-nicotinamide
ADP + beta-nicotinamide D-ribonucleotide
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-
-
?
ATP + 1-(beta-D-ribofuranosyl)-nicotinamide
ADP + beta-nicotinamide D-ribonucleotide
-
-
-
?
ATP + 1-(beta-D-ribofuranosyl)-nicotinamide
ADP + beta-nicotinamide D-ribonucleotide
-
-
-
?
ADP + nicotinamide ribonucleotide
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-
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?
ATP + N-ribosylnicotinamide
ADP + nicotinamide ribonucleotide
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involved in NAD salvage pathway
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?
ATP + N-ribosylnicotinamide
ADP + nicotinamide ribonucleotide
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-
-
?
ATP + N-ribosylnicotinamide
ADP + nicotinamide ribonucleotide
no activity with N-ribosylnicotinate
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?
ATP + N-ribosylnicotinamide
ADP + nicotinamide ribonucleotide
involved in NAD salvage pathway
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?
ATP + N-ribosylnicotinamide
ADP + nicotinamide ribonucleotide
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nicotinamide riboside phosphorylation step is essential for both nicotinamide riboside uptake across the inner membrane and NAD+ synthesis and is also involved in controlling the NAD+ biosynthesis rate
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?
ATP + N-ribosylnicotinamide
ADP + nicotinamide ribonucleotide
nicotinamide riboside promotes Sir2 silencing and extends lifespan via Nrk and Urh1/Pnp1/Meu1 pathways to NAD+
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?
ATP + N-ribosylnicotinamide
ADP + nicotinamide ribonucleotide
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-
-
?
ATP + N-ribosylnicotinamide
ADP + nicotinamide ribonucleotide
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involved in NAD salvage pathway
-
?
ATP + N-ribosylnicotinamide
ADP + nicotinamide ribonucleotide
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activity is essential for N-ribosylnicotinamide assimilation
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-
?
ATP + nicotinamide mononucleotide
NAD+ + diphosphate
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-
r
GDP + beta-nicotinamide D-ribonucleotide
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-
-
?
GTP + 1-(beta-D-ribofuranosyl)-nicotinamide
GDP + beta-nicotinamide D-ribonucleotide
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-
-
?
?
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enzyme NRK2 highly prefers ATP, while isozyme NRK1 also uses GTP with similar activity
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additional information
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enzyme NRK2 highly prefers ATP, while isozyme NRK1 also uses GTP with similar activity
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additional information
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enzyme NRK2 is restricted to ATP, while isozyme NRK1 also uses GTP
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additional information
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enzyme NRK2 is restricted to ATP, while isozyme NRK1 also uses GTP
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additional information
?
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the enzymes' C-terminal domain has nicotinamide ribose kinase activity, the central domain performes adenylyltransferase reaction, EC 2.7.7.1, overview, the purified enzyme binds nadB promotor sequence in absence of ATP with or without NAD+, DNA binding activity of the enzyme is regulated by ATP binding to the adenylyltransferase domain
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?