Mechanism of Enzyme Repair by the AAA+ Chaperone Rubisco Activase [PDF]
Molecular Cell, 2017 How AAA+ chaperones conformationally remodel specific target proteins in an ATP-dependent manner is not well understood. Here, we investigated the mechanism of the AAA+ protein Rubisco activase (Rca) in metabolic repair of the photosynthetic enzyme Rubisco, a complex of eight large (RbcL) and eight small (RbcS) subunits containing eight catalytic sites.
Andreas Bracher +2 more
exaly +5 more sources
A Thermotolerant Variant of Rubisco Activase From a Wild Relative Improves Growth and Seed Yield in Rice Under Heat Stress. [PDF]
Front Plant Sci, 2018 Genes encoding thermostable variants of the photosynthesis heat-labile protein Rubisco activase (Rca) from a wild relative Oryza australiensis were overexpressed in domesticated rice (Oryza sativa).
Scafaro AP +6 more
europepmc +2 more sources
An isoleucine residue acts as a thermal and regulatory switch in wheat Rubisco activase
Plant Journal, 2020 The regulation of Rubisco, the gatekeeper of carbon fixation into the biosphere, by its molecular chaperone Rubisco activase (Rca) is essential for photosynthesis and plant growth.
Gustaf E Degen +2 more
exaly +2 more sources
Rubisco activase: an enzyme with a temperature-dependent dual function? [PDF]
Plant Journal, 2001 SummaryHeat treatment of intact spinach leaves was found to induce a unique thylakoid membrane association of an approximately 40 kDa stromal protein. This protein was identified as rubisco activase. Most of the rubisco activase was sequestered to the thylakoid membrane, particularly to the stroma‐exposed regions, during the first 10 min of heat ...
Anne Rokka, Lixin Zhang, Eva-Mari Aro
exaly +3 more sources
Rubisco and Rubisco Activase Play an Important Role in the Biochemical Limitations of Photosynthesis in Rice, Wheat, and Maize under High Temperature and Water Deficit. [PDF]
Front Plant Sci, 2017 To understand the effect of heat and drought on three major cereal crops, the physiological and biochemical (i.e., metabolic) factors affecting photosynthesis were examined in rice, wheat, and maize plants grown under long-term water deficit (WD), high ...
Perdomo JA +3 more
europepmc +2 more sources
Quantification of Rubisco Activase Content in Leaf Extracts
, 2010 Rubisco activase functions to promote and maintain the catalytic activity of Rubisco. Studies with the activase-lacking Arabidopsis rca mutant (Salvucci et al. Photosynth Res 7:193-201, 1985; Salvucci et al. Plant Physiol 80:655-659, 1986), antisense activase tobacco, Arabidopsis and Flaveria bidentis plants (Mate et al.
Yamori, Wataru, von Caemmerer, Susanne
openaire +4 more sources
Characterization and expression of Rubisco activase genes in Ipomoea batatas. [PDF]
Mol Biol Rep, 2013 Two-dimensional electrophoresis, coupled with MALDI-TOF-MS, was used to identify differentially expressed proteins between young and mature leaves of sweet potato [Ipomoea batatas (L.) Lam]. The results showed that there were 25 differential proteins between young and mature leaves. The Rubisco activase (RCA) that catalyzes the activation of Rubisco in
Jiang Y, Wang J, Tao X, Zhang Y.
europepmc +4 more sources
Complex formation of rubisco and rubisco activase
Biophysical Journal, 2022 K. Waheeda, Po-Lin Chiu
semanticscholar +2 more sources
Regulation of Rubisco activase and its interaction with Rubisco [PDF]
Journal of Experimental Botany, 2007 The large, alpha-isoform of Rubisco activase confers redox regulation of the ATP/ADP response of the ATP hydrolysis and Rubisco activation activities of the multimeric activase holoenzyme complex. The alpha-isoform has a C-terminal extension that contains the redox-sensitive cysteine residues and is characterized by a high content of acidic residues ...
Archie R, Portis +3 more
openaire +2 more sources
Purification and Species Distribution of Rubisco Activase [PDF]
Plant Physiology, 1987 Ribulose-1,5-bisphosphate carboxylase/oxygenase (rubisco) activase, a soluble chloroplast protein which promotes light-dependent rubisco activation, was partially purified from spinach chloroplasts by ion-exchange and gel-filtration fast protein liquid chromatography.
M E, Salvucci +3 more
openaire +2 more sources