Following the Progress of an Enzyme Controlled Reaction

Along with the progress of enzyme controlled reaction programs - enzymes are the source of widely used biocatalysts, which are widely used in industry for biology. The enzyme is a biocatalyst; this means that they speed up the reaction without exhaustion. The enzymes used herein do not actually interfere with their own responses, but essentially align the two substrates at the active site of the enzyme. Amylase is a widely used enzyme that hydrolyzes starch to maltose.

Biochemical reactions are mainly controlled by enzymes. Since these proteins can specifically catalyze a single reaction, the reaction can be controlled very precisely. The reaction occurs at the active site, which is a small part of the enzyme, usually present in gaps or pockets arranged by amino acid residues, the remainder mainly being used for stabilization. The catalytic action of enzymes is influenced by several mechanisms including molecular shape ("inductive adaptation"), binding strain, proximity and orientation of molecules to enzyme, proton supply or recovery (acid / base catalysis), electrostatic interaction, Dependent. .

Enzyme kinetics is a study of enzymatic catalysis chemistry. In the enzyme kinetics, the reaction rate was measured and the effect of changing the reaction conditions was investigated. Studying the kinetics of enzymes in this manner reveals the catalytic mechanism of the enzyme, its role in metabolism, how its activity is controlled, and how drugs or agonists inhibit enzymes . These mechanisms can be divided into single substrate mechanisms and multiple substrate mechanisms. Kinetic studies of enzymes that bind only to one substrate (eg, triosephosphate isomerase) are designed to measure the affinity and conversion rate of the enzyme to bind to the substrate. Other examples of enzymes are phosphofructokinase and hexokinase, both of which are important for cell respiration (glycolysis).

Enzyme assays are laboratory procedures for measuring enzyme kinetics. As enzymes are not consumed by the reaction they catalyze, enzymatic assays typically measure reaction kinetics by following changes in substrate or product concentration. There are many measurement methods. Spectrophotometry is used to observe the change in light absorption between product and reactant; the radiometric method involves incorporation or release of radioactivity, the amount of product produced over time Is measured. Spectrophotometry is most convenient as it enables continuous measurement of reaction rate. Radiation analysis requires sample removal and counting (ie they are discontinuous analyzes), but they are typically very sensitive and can measure very low levels of enzyme activity. A similar approach is to monitor the uptake or release of stable isotopes using mass spectrometry as the substrate is converted to product.