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TOR1  -  Microtubule-associated protein TORTIFOLIA1

Arabidopsis thaliana

Synonyms: CN, CONVOLUTA, SPIRAL 2, SPR2, T24A18.10, ...
 
 
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High impact information on TOR1

  • We propose that a microtubule-dependent process and SPR1/SPR2 act antagonistically to control directional cell elongation by preventing elongating cells from potential twisting [1].
  • Recombinant TOR1 colocalizes with cortical microtubules in planta and binds directly to microtubules in vitro [2].
 

Biological context of TOR1

  • The spr1spr2 double mutant's phenotype is synergistic, suggesting that SPR1 and SPR2 act on a similar process but in separate pathways in controlling cell elongation [1].
 

Anatomical context of TOR1

  • This shows that TOR1 is a novel, plant-specific microtubule-associated protein (MAP) that regulates the orientation of cortical microtubules and the direction of organ growth [2].
 

Analytical, diagnostic and therapeutic context of TOR1

  • Furthermore, SPR2-specific antibody and mass spectrometry identified a tobacco (Nicotiana tabacum) SPR2 homolog in highly purified microtubule-associated protein fractions from tobacco BY-2 cell cultures [3].

References

  1. The SPIRAL genes are required for directional control of cell elongation in Aarabidopsis thaliana. Furutani, I., Watanabe, Y., Prieto, R., Masukawa, M., Suzuki, K., Naoi, K., Thitamadee, S., Shikanai, T., Hashimoto, T. Development (2000) [Pubmed]
  2. Helical growth of the Arabidopsis mutant tortifolia1 reveals a plant-specific microtubule-associated protein. Buschmann, H., Fabri, C.O., Hauptmann, M., Hutzler, P., Laux, T., Lloyd, C.W., Schäffner, A.R. Curr. Biol. (2004) [Pubmed]
  3. Plant-specific microtubule-associated protein SPIRAL2 is required for anisotropic growth in Arabidopsis. Shoji, T., Narita, N.N., Hayashi, K., Hayashi, K., Asada, J., Hamada, T., Sonobe, S., Nakajima, K., Hashimoto, T. Plant Physiol. (2004) [Pubmed]
 
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