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| Content Provider | Springer Nature Link |
|---|---|
| Author | Kim, Woe Yeon Kim, Cha Young Cheong, Na Eun Choi, Yeon Ok Lee, Kyun Oh Lee, Sung Ho Park, Jae Bong Naka, Akihiko Bahk, Jeong Dong Cho, Moo Je Lee, Sang Yeol |
| Copyright Year | 1999 |
| Abstract | By using the mRNA differential display approach to isolate defense signaling genes active at the early stage of fungal infection two cDNA fragments with high sequence homology to rab-specific GDP-dissociation inhibitors (GDIs) were identified in rice (Oryza sativa L.) suspension cells. Using polymerase-chain-reaction products as probes, two full-length cDNA clones were isolated from a cDNA library of fungal-elicitor-treated rice, and designated as OsGDI1 and OsGDI2. The deduced amino acid sequences of the isolated cDNAs exhibited substantial homology to Arabidopsis rab-GDIs. Northern analysis revealed that transcripts detected with the 3′-gene-specific DNA probes accumulated to high levels within 30 min after treatment with a fungal elicitor derived from Magnaporthe grisea. The functionality of the OsGDIs was demonstrated by their ability to rescue the Sec19 mutant of Saccharomyces cerevisiae which is defective in vesicle transport. The proteins, expressed in Escherchia coli, cross-reacted with a polyclonal antibody prepared against bovine rab-GDI. Like bovine rab-GDI, the OsGDI proteins efficiently dissociated rab3A from bovine synaptic membranes. Using the two-hybrid system, it was shown that the OsGDIs specifically interact with the small GTP-binding proteins belonging to the rab subfamily. The specific interaction was also demonstrated in vitro by glutathione S-transferase resin pull-down assay. |
| Starting Page | 143 |
| Ending Page | 149 |
| Page Count | 7 |
| File Format | |
| ISSN | 00320935 |
| Journal | Planta |
| Volume Number | 210 |
| Issue Number | 1 |
| e-ISSN | 14322048 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 1999-11-05 |
| Publisher Place | Berlin/Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Plant Science |
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