6-Phosphogluconate Dehydrogenase Isoenzymes from the Developing Endosperm of Ricinus communis L.
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چکیده
منابع مشابه
In Vitro Inhibition of the Plastid and Cytosolic Isozymess of 6-Phosphogluconate Dehydrogenase from Developing Endosperm of Ricinus communis by Fructose 2,6-bisphosphate.
Activities of the cytosolic and plastid isozymes of 6-phosphogluconate dehydrogenase from developing endosperm of Ricinus communis L. seeds were inhibited in vitro by hexosebisphosphates. Inhibition constants for glucose 1,6-bisphosphate were 221 and 209 micromolar for the cytosolic and plastid isozymes, respectively, and corresponding values for fructose 2,6-bisphosphate were 10.5 and 8.6 micr...
متن کاملEnergy Requirement for the Import of Protein into Plastids from Developing Endosperm of Ricinus communis L.
Leucoplasts isolated from developing endosperm of Ricinus communis L. will import the precursor of the small subunit of ribulose bisphosphate carboxylase from pea shoots and process it to its mature molecular weight (SA Boyle, SM Hemmingsen, DT Dennis [1986] Plant Physiol 81: 817-822). This process requires energy in the form of ATP. GTP, CTP, and UTP are inactive. ADP will also satisfy the ene...
متن کاملIsoenzymes of the Glycolytic and Pentose Phosphate Pathways in Proplastids from the Developing Endosperm of Ricinis communis L.
Two isoenzymes each of hexose-P isomerase, aldolase and 6-P-gluconate dehydrogenase have been found in the endosperm of developing castor beans (Ricinus communis L.). One isoenzyme for each activity is present in the proplastid fraction. Only one form of glucose-6-P dehydrogenase was found. It is suggested that the partition of an enzyme activity between cytosol and plastid is regulated by the ...
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1. Human foetal skeletal muscles involved in support and in periodic contractility were studied for their content of total extractable lactate dehydrogenase, glucose 6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase activities as well as for the relative distribution of lactate dehydrogenase isoenzymes. 2. During foetal development a linear steady increase in total lactate dehydrog...
متن کاملSynthase Gene from Ricinus communis L
1 L-myo-Inositol-1-phosphate synthase (EC 5.5.1.4, MIPS), an evolutionarily conserved enzyme protein, catalyzes the conversion of D-glucose-6-phosphate into 1 L-myo-inositol-1-phosphate (MIP), which is the fi rst and rate-limiting step in the biosynthesis of all inositol-containing compounds (Ray Chaudhuri et al., 1997; Abid et al., 2009). MIPS is found in diverse organisms, both eukaryotic and...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1978
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.62.2.287