enzyme

thumb|400px|The enzyme glucosidase converts the sugar [[maltose into two glucose sugars. Active site residues in red, maltose substrate in black, and NAD cofactor in yellow. ()|alt=Ribbon diagram of glycosidase with an arrow showing the cleavage of the maltose sugar substrate into two glucose products.]]

AI overview

An enzyme is a protein that speeds up chemical reactions in living things by helping break down or transform molecules, like how the enzyme glucosidase splits the sugar maltose into two glucose sugars. Enzymes matter because they make these reactions happen fast enough to sustain life, allowing cells to digest food, produce energy, and carry out countless other processes efficiently.

AI-generated from the Wikipedia summary — may contain errors.

Research

4,279,374 papers

Caspase-2: an orphan enzyme out of the shadows.Oncogene · 2017
High performance enzyme kinetics of turnover, activation and inhibition for translational drug discovery.Expert opinion on drug discovery · 2017
Predicting enzyme function from protein sequence.Current opinion in chemical biology · 2005
Determining the Serum Stability of Human Adenosine Deaminase 1 Enzyme.Journal of visualized experiments : JoVE · 2024
It can be a complicated life being an enzyme.Biochemical Society transactions · 2003

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Wikidata facts

Image: Triosephosphate isomerase.jpg

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Commons category: Enzymes
equivalent class: dbpedia.org/ontology/Enzyme

Sources (6)

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~46 min read

Article

40 sections

Contents

Etymology and history
Classification and nomenclature
Structure
Mechanism
Substrate binding
"Lock and key" model
Induced fit model
Catalysis
Dynamics
Substrate presentation
Allosteric modulation
Cofactors
Coenzymes
Thermodynamics
Kinetics
Inhibition
Types of inhibition
Competitive
Non-competitive
Uncompetitive
Mixed
Irreversible
Functions of inhibitors
Factors affecting enzyme activity
Biological function
Metabolism
Control of activity
Regulation
Post-translational modification
Quantity
Subcellular distribution
Organ specialization
Involvement in disease
Evolution
Industrial applications
See also
Enzyme databases
References
Further reading
External links

An enzyme is a biological macromolecule, usually a protein, that acts as a biological catalyst, accelerating chemical reactions without being consumed in the process. The molecules on which enzymes act are called substrates, which are converted into products. Nearly all metabolic processes within a cell depend on enzyme catalysis to occur at biologically relevant rates. A metabolic pathway is typically composed of a series of enzyme-catalyzed steps. The study of enzymes is known as enzymology, and a related field focuses on pseudoenzymes—proteins that have lost catalytic activity but may retain regulatory or scaffolding functions, often indicated by alterations in their amino acid sequences or unusual 'pseudocatalytic' behavior.