• Monosaccharides with an absolute configuration identical to (R)-glyceraldehyde at the last stereocentre, for example C5 in glucose, are assigned the stereo-descriptor D-. Those similar to (S)-glyceraldehyde are assigned an L-. Glyceraldehyde can be prepared, along with dihydroxyacetone, by the mild oxidation of glycerol, for example with hydrogen peroxide and a ferrous salt as catalyst. (wikipedia.org)
  • Glycolysis breaks glucose (a six-carbon-molecule) down into pyruvate (a three-carbon molecule). (citizendium.org)
  • This is the process by which non-carbohydrate precursors are converted to glucose. (rahulgladwin.com)
  • Precursors that can be converted to glucose include lactate and pyruvate, citric acid cycle intermediates, and carbon skeletons of most amino acids. (rahulgladwin.com)
  • Key difference: Aerobic Glycolysis is the metabolism of glucose, whereas, Aerobic Lipolysis is the metabolism of fat. (imingo.net)
  • Glucose (Glc), a monosaccharide (or simple sugar ), is an important carbohydrate in biology . (wikidoc.org)
  • The mirror-image of the molecule, L -glucose, cannot be metabolized by cells in the biochemical process known as glycolysis . (wikidoc.org)
  • In the presence of oxygen, the process begins with glycolysis, which breaks down glucose into two molecules of pyruvate. (microbiologynote.com)
  • The citric acid cycle is the second step in carbohydrate catabolism (the breakdown of sugars). (citizendium.org)
  • Decreases in the levels of sugars and nitrogen-containing-compounds and in the activities of known 14-3-3-interacting-enzymes were observed in 14-3-3 overexpression plants. (biomedcentral.com)
  • Glycolysis, which translates to "splitting sugars", is the process of releasing energy within sugars. (imingo.net)
  • In summary, cellular respiration is a fundamental process that enables cells to convert carbohydrates, such as sugars, starch, and glycogen, into usable energy. (microbiologynote.com)
  • The enzyme glycerol dehydrogenase (NADP+) has two substrates, glycerol and NADP+, and 3 products, D-glyceraldehyde, NADPH and H+. (wikipedia.org)
  • Such enzymes include the pyruvate dehydrogenase complex that synthesises the acetyl-CoA needed for the first reaction of the TCA cycle. (citizendium.org)
  • Also the enzymes citrate synthase, isocitrate dehydrogenase and alpha-ketoglutarate dehydrogenase, that regulate the first three steps of the TCA cycle, are inhibited by high concentrations of ATP. (citizendium.org)
  • This includes both the entry point enzymes pyruvate dehydrogenase and citrate synthase. (citizendium.org)
  • 7a-hydroxycholesterol then becomes 7a-hydroxy-cholestene-3-one, which is made possible by the enzyme 3-beta-hydroxysteroid dehydrogenase type 7. (smpdb.ca)
  • These modifications were related to the reduced activities of isocitrate dehydrogenase and malate dehydrogenase, which are key enzymes of TCA cycle. (biomedcentral.com)
  • It is a sweet, colorless, crystalline solid that is an intermediate compound in carbohydrate metabolism. (wikipedia.org)
  • In this study, extensive novel roles of 14-3-3 proteins in plant metabolism were determined through combining the parallel analyses of metabolites and enzyme activities in 14-3-3 overexpression and knockout plants with studies of protein-protein interactions. (biomedcentral.com)
  • Rounding out the upper glycolysis pathway, the identity of the fructose-1,6-bisphosphate aldolase in the genome was verified and reported to have substantial activity with fructose-1,6-bisphosphate, in the presence of the divalent ion, Zn 2+ . (biomedcentral.com)
  • In fat catabolism , triglycerides are hydrolyzed to break them into fatty acids and glycerol . (citizendium.org)
  • Lipolysis is the metabolic process through which triacylglycerols (TAGs) break down via hydrolysis into their constituent molecules: glycerol and free fatty acids (FFAs). (imingo.net)
  • SCIRP: Food and Nutrition Sciences, Vol. In this process, both in vivoand in cultur… This binding will likewise lead to the cAMP/PKA-led phosphorylation of hormone sensitive lipase, that will ultimately drive the release of free fatty acids and glycerol. (imingo.net)
  • Lipolysis /lɪˈpɒlɪsɪs/ is the metabolic pathway through which lipid triglycerides are hydrolyzed into a glycerol and three fatty acids. (imingo.net)
  • To obtain energy from fat, triglycerides must first be broken down by hydrolysis into their two principal components, fatty acids and glycerol. (imingo.net)
  • Several enzymes are also negatively regulated when the level of reducing equivalents in a cell are high (high ratio of NADH/NAD+). (citizendium.org)
  • This mechanism for regulation is due to substrate inhibition by NADH of the enzymes that use NAD+ as a substrate. (citizendium.org)
  • This allows the recycling of the electron carriers (NADH) back into their oxidized forms (NAD+), enabling glycolysis to continue. (microbiologynote.com)
  • Definition, foods, and health effects of the Mediterranean Diet, Mediterranean Diet and greenhouse gas emissions, Structure, classification and functions of carbohydrates, Chemical structure and classification of starch, Glycogen synthesis pathway in the liver and muscle. (imingo.net)
  • Nitrate reductase is phosphorylated in the dark by the calcium-dependent protein kinase (CDPK) and the sucrose non-fermenting related kinase 1 (SnRK1) that initiates the interaction of the enzyme with the 14-3-3 proteins and its inactivation. (biomedcentral.com)
  • Glyceraldehyde (glyceral) is a triose monosaccharide with chemical formula C3H6O3. (wikipedia.org)
  • As the glyoxylate cycle is an important pathway in the utilization of alternative carbon sources, we also highlight the key metabolic enzymes in the glyoxylate cycle and its necessity for the pathogenesis of C. glabrata . (biomedcentral.com)
  • Enzymes and other proteins use ATP to power reactions, maintain ion gradients across membranes, contract muscle fibers, and transport molecules across cellular membranes. (microbiologynote.com)
  • The activation or inhibition by these ligands lends support to the argument that glycolysis is regulated by metabolites such as PP i and NH 4 + in the organism. (biomedcentral.com)
  • This pathway occurs in the liver, beginning with cholesterol being converted to 7a-hydroxycholesterol through the enzyme cholesterol-7-alpha-monooxygenase, after being transported into the liver cell. (smpdb.ca)
  • These components of the pathway occur in the endoplasmic reticulum membrane, although 2 enzymes, 25-hydroxycholesterol 7-alpha-hydroxylase and sterol 26 hydroxylase, are found in the mitochondria. (smpdb.ca)
  • Reactions that form intermediates of the cycle are called anaplerotic reactions . (citizendium.org)
  • The first, continuing in the liver, uses the enzyme 3-oxo-5-beta-steroid-4-deydrogenase to become 7a-hydroxy-5b-cholestan-3-one. (smpdb.ca)
  • In the mitochondria of the cell, sterol 26-hydroxylase converts 3a,7a-dihydroxy-5b-cholestane to 3a,7a,26-trihydroxy-5b-cholestane, which is then converted to 3a,7a-dihydroxy-5b-cholestan-26-al by the same enzyme used in the previous reaction. (smpdb.ca)
  • Plants overexpressing 14-3-3 proteins also contained decreased levels of malate and citrate, which are intermediate compounds of the tricarboxylic acid (TCA) cycle. (biomedcentral.com)
  • The advantages of homochiral membranes compared to those of heterochiral membranes were analysed in terms of specific recognition, optimal functions of enzymes, membrane fluidity and topological packing. (mdpi.com)
  • D-Amino acid oxidase (DAAO) is one of the main enzymes that metabolize D-Amino acids via deamination. (smpdb.ca)
  • This compound then uses peroxisomal multifunctional enzyme type 2 to create chenodeoxycholoyl-CoA. (smpdb.ca)
  • The first and rate-limiting step of lipolysis involves the enzyme, adipose triglyceride lipase (or ATGL), which is sensitive to hormones. (imingo.net)
  • In non-adipose tissues lacking perilipin-1 the role of HSL is less well characterized and the enzyme expression is low. (imingo.net)
  • Conversely, the C-terminal half has primarily a regulatory function, and also includes the hydrophobic region responsible for the binding of lipid droplets, essential for in vivo enzyme activity. (imingo.net)
  • Many of the enzymes in the TCA cycle are regulated by negative feedback from ATP when the energy charge of the cell is high. (citizendium.org)
  • With the help of water, peroxisomal multifunctional enzyme type 2 turns 3a,7a-dihydoxy-5b-cholest-24-enoyl-CoA into 3a,7a,24-trihydoxy-5b-cholestanoyl-CoA. (smpdb.ca)
  • The living cell uses it as a source of energy and metabolic intermediate. (wikidoc.org)