Os04g0658300

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Annotated Information

Function

the rice rubisco activase (Rca) gene, variants of the Rca gene promoter (one full-length and four deletion mutants) fused to the coding region of the bacterial reporter gene b-glucuronidase (GUS) were introduced into Arabidopsis via Agrobacteriummediated transformation

Expression

Ribulose-1,5-bisphosphate carboxylase/oxygenase (rubisco),the most abundant protein in the world, catalyzes the first step of photosynthetic carbon assimilation. CO2 fixed by rubisco is converted into carbohydrate, which provides most of the carbon resources and energy needed by life on earth. However, newly assembled rubisco is inactive and needs to be activated by rubisco activase (RCA) before it can fix CO2. RCA was discovered in a nuclear gene mutant of Arabidopsis thaliana. So far, it has been isolated from more than 10 species, including C3, C4 plants and green algae. Most of these plant species have two isoforms of activase that derive from the same transcript precursor by alternative splicing. the expression of the reporter gene under a full length rubisco activase promoter was observed to be tissue-specific and light-inducible in transgenic Arabidopsis, which is coincident to the native gene expression pattern of rubisco activase in rice.

Evolution

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Labs working on this gene

Oryza sativa Japonica Group

  Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, PR China
  Key Laboratory of Molecular and Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100080, PR China

References

Functional analysis of the rice rubisco activase promoter in transgenic Arabidopsis

  Zhipan Yang, Qingtao Lu, Xiaogang Wena, Fan Chen, Congming Lu

Modulation of Rubisco activase gene expression during heat stress in cotton (Gossypium hirsutum L.) involves post-transcriptional mechanisms

  Benjamin P. DeRidder, Michael E. Salvucci

Characterization of photosystem II photochemistry in transgenic tobacco plants with lowered Rubisco activase content

  Bin Cai, Aihong Zhang, Zhipan Yang, Qingtao Lu, Xiaogang Wen, Congming Lu