By Michael T McManus, Mark Laing, Andrew Allan
The significance of protein-protein interactions in organic structures is a quickly rising learn subject matter and the revolution that's occurring in our realizing of plant genomics is permitting us to make intriguing discoveries that experience implications for either the elemental and utilized plant sciences. This ebook offers, at learn point, an summary of our present knowing of the importance of protein-protein interactions in plant biology. every one bankruptcy considers the biochemical mechanism of the protein-protein interplay and its sensible value, and attracts comparisons with comparable interactions in animal cells.
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The final ten years have witnessed a enormous bring up in our figuring out of plant hormones. A decade in the past, scientists have been compelled to depend on obscure principles approximately hormone motion; this day, those were changed by way of particular molecular versions. Given the quick raise in our figuring out of plant hormone biology, this finished evaluate couldn't have come at a greater time.
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Extra resources for Annual Plant Reviews, Protein-Protein Interactions in Plant Biology (Annual Plant Reviews)
4 PROTEIN-PROTEIN INTERACTIONS IN PLANT BIOLOGY Fructose-1,6-bisphosphatase Fructose-1,6-bisphosphatase (FBPase) is an enzyme which is present in several cell compartments in plants. The reaction catalyzed by this protein is the cleavage of the substrate fructose-1,6-bisphosphate (FBP) to fructose-6phosphate (F6P) and inorganic phosphate. One isoform present in the cytosol is involved in the synthesis of sucrose and its subsequent export to nonphotosynthetic tissues. The chloroplastic enzyme on the other hand is involved in the Calvin cycle responsible for the fixation of CO2 into organic compounds.
These authors postulate INTERACTIONS IN PLANT THIOREDOXIN DEPENDENT SYSTEMS 19 that the stability of thioredoxins resides on the N-side of the disulfide, and is associated with the acidic character of this fragment and, as a consequence, with the acidic pi of the whole molecule. In contrast, the ability of FBPase binding and enzyme catalysis depends on the structure on the C-side of the regulatory cysteines, a proposal that fits well with the effects of the mutations described above. , 1999). Efforts at solving the 3D structure of thioredoxin f have recently paid off.
And Eklund, H. 5 A resolution. J. Mol. Biol.. 264, 1044-1057. , Eklund, H. and Schiirmann, P. (1998) Crystallization and crystallographic investigations of ferredoxinrthioredoxin reductase from Synechocystis sp. PCC6803, in Photosynthesis: Mechanisms and Effects (ed. G. Garab). Kluwer Academic Publishers, Dordrecht, pp. 1931-1934. , Schiirmann, P. and Eklund, H. (2000a) How does light regulate chloroplast enzymes? Structure-function studies of the ferredoxin/thioredoxin system. Q. Rev. , 33, 67-108.