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NMNAT3

Gene
NMNAT3
Protein
Nicotinamide/nicotinic acid mononucleotide adenylyltransferase 3
Organism
Homo sapiens
Length
252 amino acids
Function
Catalyzes the formation of NAD(+) from nicotinamide mononucleotide (NMN) and ATP. Can also use the deamidated form; nicotinic acid mononucleotide (NaMN) as substrate with the same efficiency. Can use triazofurin monophosphate (TrMP) as substrate. Can also use GTP and ITP as nucleotide donors. Also catalyzes the reverse reaction, i.e. the pyrophosphorolytic cleavage of NAD(+). For the pyrophosphorolytic activity, can use NAD(+), NADH, NaAD, nicotinic acid adenine dinucleotide phosphate (NHD), nicotinamide guanine dinucleotide (NGD) as substrates. Fails to cleave phosphorylated dinucleotides NADP(+), NADPH and NaADP(+). Protects against axonal degeneration following injury.
Similarity
Belongs to the eukaryotic NMN adenylyltransferase family.
Mass
28.322 kDa
Sequence
MKSRIPVVLLACGSFNPITNMHLRMFEVARDHLHQTGMYQVIQGIISPVNDTYGKKDLAASHHRVAMARLALQTSDWIRVDPWESEQAQWMETVKVLRHHHSKLLRSPPQMEGPDHGKALFSTPAAVPELKLLCGADVLKTFQTPNLWKDAHIQEIVEKFGLVCVGRVGHDPKGYIAESPILRMHQHNIHLAKEPVQNEISATYIRRALGQGQSVKYLIPDAVITYIKDHGLYTKGSTWKGKSTQSTEGKTS

Gene
Nmnat3
Protein
Nicotinamide/nicotinic acid mononucleotide adenylyltransferase 3
Organism
Mus musculus
Length
245 amino acids
Function
Catalyzes the formation of NAD(+) from nicotinamide mononucleotide (NMN) and ATP. Can also use the deamidated form; nicotinic acid mononucleotide (NaMN) as substrate with the same efficiency. Can use triazofurin monophosphate (TrMP) as substrate. Can also use GTP and ITP as nucleotide donors. Also catalyzes the reverse reaction, i.e. the pyrophosphorolytic cleavage of NAD(+). For the pyrophosphorolytic activity, can use NAD(+), NADH, NaAD, nicotinic acid adenine dinucleotide phosphate (NHD), nicotinamide guanine dinucleotide (NGD) as substrates. Fails to cleave phosphorylated dinucleotides NADP(+), NADPH and NaADP(+). Protects against axonal degeneration following injury.
Similarity
Belongs to the eukaryotic NMN adenylyltransferase family.
Mass
27.703 kDa
Sequence
MKNRIPVVLLACGSFNPITNMHLRLFEVARDHLHQTGRYQVIEGIISPVNDSYGKKDLVASHHRVAMARLALQTSDWIRVDPWESEQAQWMETVKVLRHHHRELLRSSAQMDGPDPSKTPSASAALPELKLLCGADVLKTFQTPNLWKDTHIQEIVEKFGLVCVSRSGHDPERYISDSPILQQFQHNIHLAREPVLNEISATYVRKALGQGQSVKYLLPEAVITYIRDQGLYINDGSWKGKGKTG