NUDT2

Bis(5'-nucleosyl)-tetraphosphatase [asymmetrical] is an enzyme that in humans is encoded by the NUDT2 gene.

NUDT2
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 1XSA, 1XSB, 1XSC, 3U53, 4ICK, 4IJX
Identifiers
Aliases	NUDT2, APAH1, nudix hydrolase 2, IDDPN
External IDs	OMIM: 602852 MGI: 1913651 HomoloGene: 896 GeneCards: NUDT2
Gene location (Human) Chr. Chromosome 9 (human) Band 9p13.3 Start 34,329,506 bp End 34,343,711 bp
Gene location (Mouse) Chr. Chromosome 4 (mouse) Band 4|4 A5 Start 41,465,151 bp End 41,480,926 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in stromal cell of endometrium islet of Langerhans body of pancreas prefrontal cortex nucleus accumbens anterior pituitary amygdala gastric mucosa putamen caudate nucleus Top expressed in barrel cortex facial motor nucleus olfactory epithelium saccule intercostal muscle ectoderm otic placode atrioventricular valve endocardial cushion interventricular septum More reference expression data BioGPS More reference expression data
Gene ontology Molecular function nucleotide binding bis(5'-nucleosyl)-tetraphosphatase activity GTP binding bis(5'-nucleosyl)-tetraphosphatase (symmetrical) activity protein binding hydrolase activity bis(5'-nucleosyl)-tetraphosphatase (asymmetrical) activity Cellular component mitochondrial matrix Biological process nucleobase-containing compound metabolic process apoptotic process cellular response to oxidative stress Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 318 66401 Ensembl ENSG00000164978 ENSMUSG00000028443 UniProt P50583 P56380 RefSeq (mRNA) NM_147173 NM_001161 NM_001244390 NM_147172 NM_025539 RefSeq (protein) NP_001152 NP_001231319 NP_671701 NP_671702 NP_079815 Location (UCSC) Chr 9: 34.33 – 34.34 Mb Chr 4: 41.47 – 41.48 Mb PubMed search
Wikidata
View/Edit Human View/Edit Mouse

This gene encodes a member of the MutT family of nucleotide pyrophosphatases, a subset of the larger NUDIX hydrolase family. The gene product possesses a modification of the MutT sequence motif found in certain nucleotide pyrophosphatases. The enzyme asymmetrically hydrolyzes Ap4A to yield AMP and ATP and is responsible for maintaining the intracellular level of the dinucleotide Ap4A, the function of which has yet to be established. This gene may be a candidate tumor suppressor gene. Alternative splicing has been observed at this locus and three transcript variants, all encoding the same protein, have been identified.

Further reading

• Bessman MJ, Frick DN, O'Handley SF (1996). "The MutT proteins or "Nudix" hydrolases, a family of versatile, widely distributed, "housecleaning" enzymes". J. Biol. Chem. 271 (41): 25059–62. doi:10.1074/jbc.271.41.25059. PMID 8810257.
• Pinto RM, Costas MJ, Fernández A, et al. (1991). "Dinucleoside tetraphosphatase from human blood cells. Purification and characterization as a high specific activity enzyme recognized by an anti-rat tetraphosphatase antibody". FEBS Lett. 287 (1–2): 85–8. doi:10.1016/0014-5793(91)80021-T. PMID 1652465. S2CID 45540631.
• Hankin S, Matthew N, Thorne H, McLennan AG (1995). "Diadenosine 5',5"'-P1,P4-tetraphosphate hydrolase is present in human erythrocytes, leukocytes and platelets". Int. J. Biochem. Cell Biol. 27 (2): 201–6. doi:10.1016/1357-2725(94)00076-N. PMID 7767787.
• Lazewska D, Starzyńska E, Guranowski A (1993). "Human placental (Asymmetrical) diadenosine 5',5-P1,P4-tetraphosphate hydrolase: purification to homogeneity and some properties". Protein Expr. Purif. 4 (1): 45–51. doi:10.1006/prep.1993.1007. PMID 8381042.
• Rotllán P, Rodríguez-Ferrer CR, Asensio AC, Oaknin S (1998). "Potent inhibition of specific diadenosine polyphosphate hydrolases by suramin". FEBS Lett. 429 (2): 143–6. doi:10.1016/S0014-5793(98)00579-1. PMID 9650578. S2CID 22827879.
• Vartanian A, Alexandrov I, Prudowski I, et al. (1999). "Ap4A induces apoptosis in human cultured cells". FEBS Lett. 456 (1): 175–80. doi:10.1016/S0014-5793(99)00956-4. PMID 10452553. S2CID 24954275.
• Guranowski A, Galbas M, Hartmann R, Justesen J (2000). "Selective degradation of 2'-adenylated diadenosine tri- and tetraphosphates, Ap(3)A and Ap(4)A, by two specific human dinucleoside polyphosphate hydrolases". Arch. Biochem. Biophys. 373 (1): 218–24. doi:10.1006/abbi.1999.1556. PMID 10620341.
• Abdelghany HM, Gasmi L, Cartwright JL, et al. (2002). "Cloning, characterisation and crystallisation of a diadenosine 5',5"'-P(1),P(4)-tetraphosphate pyrophosphohydrolase from Caenorhabditis elegans". Biochim. Biophys. Acta. 1550 (1): 27–36. doi:10.1016/S0167-4838(01)00263-1. PMID 11738085.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Guranowski A, Sillero A, Günther Sillero MA (2003). "Selective splitting of 3'-adenylated dinucleoside polyphosphates by specific enzymes degrading dinucleoside polyphosphates". Acta Biochim. Pol. 50 (1): 123–30. doi:10.18388/abp.2003_3719. hdl:10261/24479. PMID 12673352.
• Pitcher WH, Kirby TW, DeRose EF, London RE (2003). "Metabolic transformation of AZTp4A by Ap4A hydrolase regenerates AZT triphosphate". Antiviral Res. 58 (3): 227–33. doi:10.1016/S0166-3542(03)00003-2. PMID 12767470.
• Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Swarbrick JD, Buyya S, Gunawardana D, et al. (2005). "Structure and substrate-binding mechanism of human Ap4A hydrolase". J. Biol. Chem. 280 (9): 8471–81. doi:10.1074/jbc.M412318200. PMID 15596429.
• Swarbrick JD, Buyya S, Gunawardana D, et al. (2005). "1H, 13C, and 15N resonance assignments of the 17 kDa Ap4A hydrolase from Homo sapiens in the presence and absence of ATP". J. Biomol. NMR. 31 (2): 181–2. doi:10.1007/s10858-004-7440-4. PMID 15772762. S2CID 35502399.