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Literature summary extracted from
- Functional analysis of Arabidopsis and maize transgenic lines overexpressing the ADP-ribose/NADH pyrophosphohydrolase, AtNUDX7 (2019), Int. J. Dev. Biol., 63, 45-55 .
Cloned(Commentary)
| EC Number | Cloned (Comment) | Organism |
|---|---|---|
| 3.6.1.13 | gene AtNUDX7, overexpression of ADP-ribose/NADH pyrophosphohydrolase, AtNUDX7, in several Arabidopsis thaliana and Zea mays transgenic lines under control of the constitutive caulixadflower Mosaic virus 35S promoter and the strong constitutive Brachypodium distachyon pBdEF1a promoter, respectively, quantitative PCR expression analysis. Lines containing the pZmUBIL::AtNUDX7 overexpression construct have generally much lower expression levels than lines driven by the pBdEF1a promoter | Arabidopsis thaliana |
Protein Variants
| EC Number | Protein Variants | Comment | Organism |
|---|---|---|---|
| 3.6.1.13 | additional information | overexpression of AtNUDX7 in Arabidopsis thaliana improves seed parameters, accelerates flowering, and reduces inflorescence height. AtNUDX7 overexpression in Arabixaddopsis might enhance the ADP-ribose recycling step and maintain energy levels by supplying an ATP source in the poly(ADP-ribosyl)ation energy homeostasis pathway. Arabidopsis and maize lines with high, medium and low overexpression levels of the AtNUDX7 gene are analysed in automated platforms and the inhibition of several growth parameters is determined under mild drought stress conditions. The constitutive overexpression of the Arabidopxadsis AtNUDX7 gene in Arabidopsis and maize at varying levels does not improve tolerance to mild drought stress, but knocking down AtNUDX7 expression does, however at the expense of general growth under normal conditions. A loss-of-function mutant line, designated Atnudx7-1 (SALK-046441), has a T-DNA insertion in exon 1 of the AtNUDX7 gene, in the Col-0 background and verified for its T-DNA insertion position, homozygous T-DNA insertion, AtNUDX7 gene expression, and is used as a negative control. Evaluation of the AtNUDX7 overexpression maize lines under mild drought stress | Arabidopsis thaliana |
Localization
| EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|---|
| 3.6.1.13 | cytosol | - |
Arabidopsis thaliana | 5829 | - |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.6.1.13 | ADP-alpha-D-ribose + H2O | Arabidopsis thaliana | - |
AMP + D-ribose 5-phosphate | - |
? |  |
| 3.6.1.13 | ADP-alpha-D-ribose + H2O | Arabidopsis thaliana Col-0 | - |
AMP + D-ribose 5-phosphate | - |
? | |
| 3.6.1.13 | NADH + H2O | Arabidopsis thaliana | - |
AMP + NMNH | - |
? | |
| 3.6.1.13 | NADH + H2O | Arabidopsis thaliana Col-0 | - |
AMP + NMNH | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.6.1.13 | Arabidopsis thaliana | Q9SU14 | - |
- |
| 3.6.1.13 | Arabidopsis thaliana Col-0 | Q9SU14 | - |
- |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.6.1.13 | ADP-alpha-D-ribose + H2O | - |
Arabidopsis thaliana | AMP + D-ribose 5-phosphate | - |
? | |
| 3.6.1.13 | ADP-alpha-D-ribose + H2O | - |
Arabidopsis thaliana Col-0 | AMP + D-ribose 5-phosphate | - |
? | |
| 3.6.1.13 | NADH + H2O | - |
Arabidopsis thaliana | AMP + NMNH | - |
? | |
| 3.6.1.13 | NADH + H2O | - |
Arabidopsis thaliana Col-0 | AMP + NMNH | - |
? | |
Synonyms
| EC Number | Synonyms | Comment | Organism |
|---|---|---|---|
| 3.6.1.13 | ADP-ribose/NADH pyrophosphohydrolase | - |
Arabidopsis thaliana |
| 3.6.1.13 | AT4G12720 | locus name | Arabidopsis thaliana |
| 3.6.1.13 | AtNUDX7 | - |
Arabidopsis thaliana |
| 3.6.1.13 | Nudix hydrolase 7 | - |
Arabidopsis thaliana |
Expression
| EC Number | Organism | Comment | Expression |
|---|---|---|---|
| 3.6.1.13 | Arabidopsis thaliana | AtNUDX7 is induced by multiple stresses and is involved in both biotic and abiotic stress responses | up |
General Information
| EC Number | General Information | Comment | Organism |
|---|---|---|---|
| 3.6.1.13 | malfunction | improved seed yield parameters and early flowering time upon overexpression of AtNUDX7 in Arabidopsis thaliana. Different levels of constitutive overexpresxadsion of the Arabidopsis AtNUDX7 gene in Arabidopsis and also in maize do not result in a mild drought stress tolerance phenotype. But downregulation of AtNUDX7 results in mild drought stress tolerance under water deficit but growth under normal conditions is reduced, phenotypes, overview | Arabidopsis thaliana |
| 3.6.1.13 | metabolism | the poly(ADP-ribosyl)ation (PAR) pathway is a postxadtranslational protein modification process, activated upon single- or double-stranded DNA breaks, in which ADP-ribose subunits from nicotinamide adenine dinucleotide (NAD+) are covalently attached to target proteins mediated by the poly(ADP-ribose) polymerase enzyme (PARP, EC 2.4.2.30). PARP activity can be reversed by a poly(ADP-ribose) glycohydrolase enzyme (PARG, EC 3.2.1.143) generating free ADP-ribose molecules that can be degraded into adenosine monophosphate (AMP) and ribose-5-phosphate by the ADP-ribose-specific Nudix hydrolase enzyme. AMP can be utilized to replenish the ATP and NAD+, leading to maintenance of cellular homeostasis. Cytosolic enzymes AtNUDX2, AtNUDX6, AtNUDX7, and AtNUDX10 have pyrophosphohydrolase activity toward both ADP-ribose and NADH. Role of the poly(ADP-ribosyl)ation pathway in stress response and energy homeostasis, overview | Arabidopsis thaliana |
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