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Literature summary for 2.3.2.15 extracted from
- Overexpression of phytochelatin synthase AtPCS2 enhances salt tolerance in Arabidopsis thaliana (2019), J. Plant Physiol., 240, 153011 .
Cloned(Commentary)
| Cloned (Comment) | Organism |
|---|---|
| gene PCS2, recombinant expression in Arabidopsis thaliana and Nicotiana tabacum var. Xanthi plants using the Agrobacterium tumefaciens strain GV3101 transfection method | Arabidopsis thaliana |
Protein Variants
| Protein Variants | Comment | Organism |
|---|---|---|
| additional information | AtPCS2-overexpressing transgenic Arabidopsis thaliana and Nicotiana tabacum plants display increased seed germination rates and seedling growth under high salt stress. Furthermore, decreased levels of hydrogen peroxide (H2O2) and lipid peroxidation are observed in transgenic Arabidopsis thaliana compared to wild-type specimens. Salt stress greatly reduces transcript levels of CuSOD2, FeSOD2, CAT2, and GR2 in wild-type but not in transgenic Arabidopsis thaliana. Levels of CAT3 in transgenic Arabidopsis are markedly increased upon salt stress, suggesting that low accumulation of H2O2 in transgenic Arabidopsis is partially achieved through induction of CAT | Arabidopsis thaliana |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| glutathione + [Glu(-Cys)]n-Gly | Arabidopsis thaliana | - |
Gly + [Glu(-Cys)]n+1-Gly | - |
? |  |
| glutathione + [Glu(-Cys)]n-Gly | Arabidopsis thaliana Col-0 | - |
Gly + [Glu(-Cys)]n+1-Gly | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Arabidopsis thaliana | A0A1P8AVN4 | - |
- |
| Arabidopsis thaliana Col-0 | A0A1P8AVN4 | - |
- |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| seedling | - |
Arabidopsis thaliana | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| glutathione + [Glu(-Cys)]n-Gly | - |
Arabidopsis thaliana | Gly + [Glu(-Cys)]n+1-Gly | - |
? | |
| glutathione + [Glu(-Cys)]n-Gly | - |
Arabidopsis thaliana Col-0 | Gly + [Glu(-Cys)]n+1-Gly | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| AtPCS2 | - |
Arabidopsis thaliana |
| PCS | - |
Arabidopsis thaliana |
| phytochelatin synthase | - |
Arabidopsis thaliana |
| phytochelatin synthase 2 | - |
Arabidopsis thaliana |
Expression
| Organism | Comment | Expression |
|---|---|---|
| Arabidopsis thaliana | expression of AtPCS2 is significantly decreased in response to high concentrations of metals Ni2+ (0.1 mM), Mg2+ (1.0 mM), Cd2+ (0.3 mM), Hg2+ (0.030 mM), Zn2+ (0.5 mM), and Pb2+ (0.5 mM), as well as by abscisic acid (0.1 mM), PEG (15%) drougth, and cold (4°C) stress, overview | down |
| Arabidopsis thaliana | expression patterns of AtPCS2 in Arabidopsis thaliana in response to various heavy metals or abiotic stresses, overview | additional information |
| Arabidopsis thaliana | expression of AtPCS2 is significantly increased in response to 100 and 200 mM NaCl treatment. In addition, transgenic Arabidopsis subjected to salt stress exhibit enhanced proline accumulation and reduced Na+/K+ ratios compared to wild-type plants. The enzyme expression is also induced by H2O2 at 20 mM | up |
General Information
| General Information | Comment | Organism |
|---|---|---|
| malfunction | AtPCS2-overexpressing transgenic Arabidopsis thaliana and Nicotiana tabacum plants display increased seed germination rates and seedling growth under high salt stress. In addition, transgenic Arabidopsis subjected to salt stress exhibit enhanced proline accumulation and reduced Na+/K+ ratios compared to wild-type plants. Effects of salt stress on seed germination and root elongation of AtPCS2-overexpressing transgenic plants, phenotype, overview | Arabidopsis thaliana |
| physiological function | phytochelatin synthase (PCS) is an enzyme that synthesizes phytochelatins, which are metal-binding peptides. It plays an important role in heavy metal detoxification or tolerance. Function of Arabidopsis thaliana phytochelatin synthase 2 (AtPCS2) in the salt stress response. AtPCS2 plays a positive role in seed germination and seedling growth under salt stress through a series of indirect effects that are likely involved in H2O2 scavenging, regulation of osmotic adjustment and ion homeostasis | Arabidopsis thaliana |
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