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Literature summary for 7.3.2.4 extracted from
- Rice nitrate transporter OsNPF2.4 functions in low-affinity acquisition and long-distance transport (2015), J. Exp. Bot., 66, 317-331.
Cloned(Commentary)
| Cloned (Comment) | Organism |
|---|---|
| expressed in Xenopus laevis oocytes | Oryza sativa |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 3.1 | - |
nitrate/out | pH and temperature not specified in the publication | Oryza sativa |  |
Localization
| Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|
| plasma membrane | - |
Oryza sativa | 5886 | - |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| ATP + H2O + nitrate/out | Oryza sativa | - |
ADP + phosphate + nitrate/in | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Oryza sativa | - |
- |
- |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| epidermis | - |
Oryza sativa | - |
| phloem companion cell | - |
Oryza sativa | - |
| root | - |
Oryza sativa | - |
| shoot | - |
Oryza sativa | - |
| xylem parenchyma cell | - |
Oryza sativa | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| ATP + H2O + nitrate/out | - |
Oryza sativa | ADP + phosphate + nitrate/in | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| nitrate transporter | - |
Oryza sativa |
| NPF2.4 | - |
Oryza sativa |
Expression
| Organism | Comment | Expression |
|---|---|---|
| Oryza sativa | in roots, enzyme expression can be decreased by 79% by potassium deficiency | down |
| Oryza sativa | in roots, enzyme expression can be increased by 33% by supply of high nitrate (2.5 mM) | up |
General Information
| General Information | Comment | Organism |
|---|---|---|
| malfunction | enzyme nockout decreases rice growth and potassium concentration in xylem sap, root, culm, and sheath, but increases the shoot:root ratio of tissue potassium under higher nitrate | Oryza sativa |
| physiological function | the enzyme functions in acquisition and long-distance transport of nitrate and plays an important role in maintaining nitrate-mediated growth and development in rice. Low-affinity nitrate acquisition of roots is increased by enzyme overexpression | Oryza sativa |
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Release 2023.1 (January 2023)
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