2-dehydro-3-deoxy-phosphogluconate aldolase
Encyclopedia
In enzymology, a 2-dehydro-3-deoxy-phosphogluconate aldolase is an enzyme
that catalyzes
the chemical reaction
Hence, this enzyme has one substrate
, 2-dehydro-3-deoxy-D-gluconate 6-phosphate, and two products
, pyruvate and D-glyceraldehyde 3-phosphate.
This enzyme belongs to the family of lyase
s, specifically the aldehyde-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is 2-dehydro-3-deoxy-D-gluconate-6-phosphate D-glyceraldehyde-3-phosphate-lyase (pyruvate-forming). Other names in common use include phospho-2-keto-3-deoxygluconate aldolase, KDPG aldolase, phospho-2-keto-3-deoxygluconic aldolase, 2-keto-3-deoxy-6-phosphogluconic aldolase, 2-keto-3-deoxy-6-phosphogluconate aldolase, 6-phospho-2-keto-3-deoxygluconate aldolase, ODPG aldolase, 2-oxo-3-deoxy-6-phosphogluconate aldolase, 2-keto-3-deoxygluconate-6-P-aldolase, 2-keto-3-deoxygluconate-6-phosphate aldolase, 2-dehydro-3-deoxy-D-gluconate-6-phosphate, and D-glyceraldehyde-3-phosphate-lyase. This enzyme participates in 3 metabolic pathways
: pentose phosphate pathway
, pentose and glucuronate interconversions, and arginine and proline metabolism.
have been solved for this class of enzymes, with PDB
accession codes , , , , , , , , , , , , and .
Enzyme
Enzymes are proteins that catalyze chemical reactions. In enzymatic reactions, the molecules at the beginning of the process, called substrates, are converted into different molecules, called products. Almost all chemical reactions in a biological cell need enzymes in order to occur at rates...
that catalyzes
Catalysis
Catalysis is the change in rate of a chemical reaction due to the participation of a substance called a catalyst. Unlike other reagents that participate in the chemical reaction, a catalyst is not consumed by the reaction itself. A catalyst may participate in multiple chemical transformations....
the chemical reaction
Chemical reaction
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Chemical reactions can be either spontaneous, requiring no input of energy, or non-spontaneous, typically following the input of some type of energy, such as heat, light or electricity...
- 2-dehydro-3-deoxy-D-gluconate 6-phosphate pyruvate + D-glyceraldehyde 3-phosphate
Hence, this enzyme has one substrate
Substrate (biochemistry)
In biochemistry, a substrate is a molecule upon which an enzyme acts. Enzymes catalyze chemical reactions involving the substrate. In the case of a single substrate, the substrate binds with the enzyme active site, and an enzyme-substrate complex is formed. The substrate is transformed into one or...
, 2-dehydro-3-deoxy-D-gluconate 6-phosphate, and two products
Product (chemistry)
Product are formed during chemical reactions as reagents are consumed. Products have lower energy than the reagents and are produced during the reaction according to the second law of thermodynamics. The released energy comes from changes in chemical bonds between atoms in reagent molecules and...
, pyruvate and D-glyceraldehyde 3-phosphate.
This enzyme belongs to the family of lyase
Lyase
In biochemistry, a lyase is an enzyme that catalyzes the breaking of various chemical bonds by means other than hydrolysis and oxidation, often forming a new double bond or a new ring structure...
s, specifically the aldehyde-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is 2-dehydro-3-deoxy-D-gluconate-6-phosphate D-glyceraldehyde-3-phosphate-lyase (pyruvate-forming). Other names in common use include phospho-2-keto-3-deoxygluconate aldolase, KDPG aldolase, phospho-2-keto-3-deoxygluconic aldolase, 2-keto-3-deoxy-6-phosphogluconic aldolase, 2-keto-3-deoxy-6-phosphogluconate aldolase, 6-phospho-2-keto-3-deoxygluconate aldolase, ODPG aldolase, 2-oxo-3-deoxy-6-phosphogluconate aldolase, 2-keto-3-deoxygluconate-6-P-aldolase, 2-keto-3-deoxygluconate-6-phosphate aldolase, 2-dehydro-3-deoxy-D-gluconate-6-phosphate, and D-glyceraldehyde-3-phosphate-lyase. This enzyme participates in 3 metabolic pathways
Metabolism
Metabolism is the set of chemical reactions that happen in the cells of living organisms to sustain life. These processes allow organisms to grow and reproduce, maintain their structures, and respond to their environments. Metabolism is usually divided into two categories...
: pentose phosphate pathway
Pentose phosphate pathway
The pentose phosphate pathway is a process that generates NADPH and pentoses . There are two distinct phases in the pathway. The first is the oxidative phase, in which NADPH is generated, and the second is the non-oxidative synthesis of 5-carbon sugars...
, pentose and glucuronate interconversions, and arginine and proline metabolism.
Structural studies
As of late 2007, 13 structuresTertiary structure
In biochemistry and molecular biology, the tertiary structure of a protein or any other macromolecule is its three-dimensional structure, as defined by the atomic coordinates.-Relationship to primary structure:...
have been solved for this class of enzymes, with PDB
Protein Data Bank
The Protein Data Bank is a repository for the 3-D structural data of large biological molecules, such as proteins and nucleic acids....
accession codes , , , , , , , , , , , , and .