An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell. ... A cell contains thousands of different types of enzyme molecules, each specific to a particular chemical reaction....
4.3.1Enzyme-catalyzed reactions The rate ofenzymatic reactionsdepends on a number of conditions, such as the concentration of theenzymeand the substrate, the temperature, pH, ionicstrengthetc. If the substrate is present in large excess, the rate of an enzymatic reaction is proportional to the ...
What is an enzyme? Explain. Enzymes: A catalyst is given in any kind of reaction to accelerate the rate of the reaction by lowering the activation energy of the reaction. Enzymes are biological catalysts that perform similar functions.
Why is water important in enzymatic activity? Why enzyme action is considered highly specific? How does the reaction of hydrogen and catalase compare to one using unboiled catalase? Why is an enzyme considered a protein? What is the biological importance of enzymes?
- 《Journal of Biological Chemistry》 被引量: 18发表: 2015年 Use of immobilized Pseudomonas sp. as whole cell catalyst for the transesterification of used cotton seed oil. Lipase enzyme producing bacteria, Pseudomonas sp., have been grown at varying oil concentrations to make it adaptive for ...
Enzyme activityis usually the objective of growing bugs in a plant. Enzymes are biological catalysts. Just like other catalysts, they reduce activation energy, allowing reactions to proceed in a desired direction. Because their activity is dependent on the folding of a protein, they are usually se...
New enzyme catalysts are usually engineered by repurposing the active sites of natural proteins. Here we show that design and directed evolution can be used to transform a non-natural, functionally naive zinc-binding protein into a highly active catalyst for an abiological hetero-Diels–Alder reacti...
Tuning the activity of an enzyme for unusual environments: sequential random mutagenesis of subtilisin E for catalysis in dimethylformamide. Random mutagenesis has been used to engineer the protease subtilisin E to function in a highly nonnatural environment--high concentrations of a polar organ... K...
an enzyme without its catalytic activity is generally considered to be an inert organizational protein without catalytic function and has classically been termed as pseudo-enzymes. However, pseudo-enzymes still have biological function albeit non-enzymatic like serving as a chaperone protein or an intera...
Enzyme Specificity In subject area: Medicine and Dentistry (3) Multisite substrate specificity describes interactions between a protein kinase and its substrate that occur outside of the kinase catalytic cleft. From: Methods in Enzymology, 2019 About this pageSet alert Also in subject areas: Biochemi...