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Gene Review

RAB7B  -  Ras-related protein RABG3f

Arabidopsis thaliana

Synonyms: ATRAB7B, ATRABG3F, RAB GTPase homolog G3F, RAB71, RABG3F
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High impact information on AtRABG3f/AtRab7B

  • The three der1 alleles develop the mutant phenotype to different degrees and are all missense mutations, thus providing the means to study the effect of partially functional ACT2 [1].

Biological context of AtRABG3f/AtRab7B

  • The detailed characterization of the der1 phenotypes revealed that ACT2 is not only involved in root hair tip growth, but is also required for correct selection of the bulge site on the epidermal cell [1].


  1. ACTIN2 is essential for bulge site selection and tip growth during root hair development of Arabidopsis. Ringli, C., Baumberger, N., Diet, A., Frey, B., Keller, B. Plant Physiol. (2002) [Pubmed]
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