NMNAT2

Gene Symbol NMNAT2
Entrez Gene 23057
Alt Symbol C1orf15, PNAT2
Species Human
Gene Type protein-coding
Description nicotinamide nucleotide adenylyltransferase 2
Other Description NMN adenylyltransferase 2|NMN/NaMN adenylyltransferase 2|NaMN adenylyltransferase 2|nicotinamide mononucleotide adenylyltransferase 2|nicotinamide/nicotinic acid mononucleotide adenylyltransferase 2|nicotinate-nucleotide adenylyltransferase 2|pyridine nucleotide adenylyltransferase 2
Swissprots Q96QW1 O75067 Q9BZQ4 Q5T1Q3 Q8WU99
Accessions CAM12698 CDH92522 EAW91148 EAW91149 EAW91150 EAW91151 Q9BZQ4 AB007948 BAA32324 AF086038 AF288395 AAG60615 AK291390 BAF84079 AK309461 BC016726 BC020998 AAH20998 BC037251 BI493003 HQ447356 ADQ31842 NM_015039 NP_055854 NM_170706 NP_733820
Function Catalyzes the formation of NAD(+) from nicotinamide mononucleotide (NMN) and ATP. Can also use the deamidated form; nicotinic acid mononucleotide (NaMN) as substrate but with a lower efficiency. Cannot use triazofurin monophosphate (TrMP) as substrate. Also catalyzes the reverse reaction, i.e. the pyrophosphorolytic cleavage of NAD(+). For the pyrophosphorolytic activity prefers NAD(+), NADH and NaAD as substrates and degrades nicotinic acid adenine dinucleotide phosphate (NHD) less effectively. Fails to cleave phosphorylated dinucleotides NADP(+), NADPH and NaADP(+). {ECO:0000269|PubMed:16118205, ECO:0000269|PubMed:17402747}.
Subcellular Location Cytoplasm {ECO:0000269|PubMed:16118205}. Golgi apparatus {ECO:0000269|PubMed:16118205}.
Tissue Specificity Highly expressed in brain, in particular in cerebrum, cerebellum, occipital lobe, frontal lobe, temporal lobe and putamen. Also found in the heart, skeletal muscle, pancreas and islets of Langerhans. {ECO:0000269|PubMed:12359228, ECO:0000269|PubMed:14516279, ECO:0000269|PubMed:16118205}.
Top Pathways Nicotinate and nicotinamide metabolism