Results 31 to 40 of about 10,930 (224)

A Partial C4 Photosynthetic Biochemical Pathway in Rice

open access: yesFrontiers in Plant Science, 2020
Introduction of a C4 photosynthetic pathway into C3 rice (Oryza sativa) requires installation of a biochemical pump that concentrates CO2 at the site of carboxylation in modified bundle sheath cells. To investigate the feasibility of this, we generated a
HsiangChun Lin   +11 more
doaj   +1 more source

Relationships Between C4 Enzyme Activities and Yield in Soybeans (Glycine max (L.) Merr.)

open access: yesJournal of Integrative Agriculture, 2013
To study the relationships between C4 enzyme activities and yield, C4 enzyme activities (phosphoenolpyruvate carboxylase (PEPCase), NADP-malate dehydrogenase (NADP-MDH), NADP-malic enzyme (NADP-ME), and pyruvate phosphate dikinase (PPDK)) in different ...
Shan-shan HUANG   +4 more
doaj   +1 more source

Kinetic and Structural Properties of NADP-Malic Enzyme from Sugarcane Leaves [PDF]

open access: yesPlant Physiology, 1990
Oligomeric structure and kinetic properties of NADP-malic enzyme, purified from sugarcane (Saccharam officinarum L.) leaves, were determined at either pH 7.0 and 8.0. Size exclusion chromatography showed the existence of an equilibrium between the dimeric and the tetrameric forms.
A A, Iglesias, C S, Andreo
openaire   +2 more sources

Structural characteristics of the nonallosteric human cytosolic malic enzyme

open access: yes, 2017
Human cytosolic NADP(+)-dependent malic enzyme (c-NADP-ME) is neither a cooperative nor an allosteric enzyme, whereas mitochondrial NAD(P)(+)-dependent malic enzyme (m-NAD(P)-ME) is allosterically activated by fumarate.
Hsieh, Ju-Yi;Li, Shao-Yu;Chen, Meng-Chun;Yang, Pai-Chun;Chen, Hui-Yi;Chan, Nei-Li;Liu, Jyung-Hurng;Hung, Hui-Chih   +1 more
core   +2 more sources

Evolutionary Convergence of C4 Photosynthesis: A Case Study in the Nyctaginaceae

open access: yesFrontiers in Plant Science, 2020
C4 photosynthesis evolved over 65 times, with around 24 origins in the eudicot order Caryophyllales. In the Caryophyllales family Nyctaginaceae, the C4 pathway is known in three genera of the tribe Nyctagineae: Allionia, Okenia and Boerhavia ...
Roxana Khoshravesh   +6 more
doaj   +1 more source

The enzyme kinetics of the NADP-malic enzyme from tobacco leaves [PDF]

open access: yes, 2020
Malic enzyme (L-malate: NADP + oxidoreductase (oxaloacetate-decarboxylating), EC 1.1.1.40, NADP-ME), which was found in chloroplasts, was isolated from tobacco leaves (Nicotiana tabacum L.) almost homogenous.
Helena Synková   +7 more
core  

Role for malic enzyme, pyruvate carboxylation, and mitochondrial malate import in glucose-stimulated insulin secretion

open access: yes, 2009
Pyruvate cycling has been implicated in glucose-stimulated insulin secretion (GSIS) from pancreatic beta-cells. The operation of some pyruvate cycling pathways is proposed to necessitate malate export from the mitochondria and NADP(+)-dependent ...
Gray, Joshua P.   +5 more
core   +1 more source

Crystal Packing of Protomers Provides a Valuable Structural Insight into Protein Structure

open access: yesCrystals
The crystal structure of proteins is generally considered static due to the constraints imposed by crystal packing. We determined the crystal structure of rice NADP-malic enzyme 2 (OsNADP-ME2), an oxidative decarboxylase that converts malic acid to ...
Dong-Hyun Lee   +7 more
doaj   +1 more source

NADPH-generating dehydrogenases: their role in the mechanism of protection against nitro-oxidative stress induced by adverse environmental conditions

open access: yesFrontiers in Environmental Science, 2014
NADPH is an essential reductive coenzyme in biosynthetic processes such as cell growth, proliferation and detoxification in eukaryotic cells. It is required by antioxidative systems such as the ascorbate-glutathione cycle and is also necessary for the ...
Francisco Javier Corpas, Juan B Barroso
doaj   +1 more source

The roles of organic acids in C4 photosynthesis

open access: yesFrontiers in Plant Science, 2016
Organic acids are involved in numerous metabolic pathways in all plants. The finding that some plants, known as C4 plants, have four-carbon dicarboxylic acids as the first product of carbon fixation showed these organic acids play essential roles as ...
Martha eLudwig
doaj   +1 more source

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