Update info.Tools - Reference - Detail
Reference Detail
| Reference | ||
|---|---|---|
| Author | Kobayashi,Y., Yamamoto,S., Minami,H., Kagaya,Y. and Hattori,T. | |
| Title | Differential activation of the rice sucrose nonfermenting1-related protein kinase2 family by hyperosmotic stress and abscisic Acid. | |
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Abstract: To date, a large number of sequences of protein kinases that belong to the sucrose nonfermenting1-related protein kinase2 (SnRK2) family are found in databases. However, only limited numbers of the family members have been characterized and implicated in abscisic acid (ABA) and hyperosmotic stress signaling. We identified 10 SnRK2 protein kinases encoded by the rice (Oryza sativa) genome. Each of the 10 members was expressed in cultured cell protoplasts, and its regulation was analyzed. Here, we demonstrate that all family members are activated by hyperosmotic stress and that three of them are also activated by ABA. Surprisingly, there were no members that were activated only by ABA. The activation was found to be regulated via phosphorylation. In addition to the functional distinction with respect to ABA regulation, dependence of activation on the hyperosmotic strength was different among the members. We show that the relatively diverged C-terminal domain is mainly responsible for this functional distinction, although the kinase domain also contributes to these differences. The results indicated that the SnRK2 protein kinase family has evolved specifically for hyperosmotic stress signaling and that individual members have acquired distinct regulatory properties, including ABA responsiveness by modifying the C-terminal domain. |
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| Journal | Plant Cell | |
| Country | Japan | |
| Volume | 16(5) | |
| Pages | 1163-1177 | |
| Year | 2004 | |
| PubMed ID | 15084714 | |
| PubMed Central ID | - | |
| DOI | 10.1105/tpc.019943 | |
| URL | - | |
| Relation | ||
| Gene | SAPK1 SAPK10 SAPK2 SAPK3 SAPK4 SAPK5 SAPK6 SAPK7 SAPK8 SAPK9 | |
| INSD | AB125303 AB125304 AB125302 AB125305 AB125306 AB125307 AB125308 AB125309 AB125310 AB125311 | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
