enzyme-substrate complex

[EN-zym SƏB-strayt KOM-pleks]
nounpl: enzyme-substrate complexes
complexo enzima-substrato
1. A temporary intermediate formed when an enzyme binds to its substrate during the catalysis of a biochemical reaction
The enzyme-substrate complex is a crucial stage in the mechanism of enzymatic catalysis.
O complexo enzima-substrato é um estágio crucial no mecanismo da catálise enzimática.
2. The specific binding of a substrate molecule to the active site of an enzyme, forming a transient molecular complex
Formation of the enzyme-substrate complex increases the reaction rate significantly.
A formação do complexo enzima-substrato aumenta significativamente a velocidade da reação.
This term is fundamental in biochemistry education and research across both Brazil and Portugal. It is primarily used in academic, scientific, and medical contexts. The concept is central to understanding enzyme kinetics and is extensively covered in university-level biochemistry courses in Portuguese-speaking countries.
Synonyms / Sinônimos
ES complexenzyme-substrate intermediateenzyme-substrate adductMichaelis complex
Antonyms / Antônimos
free enzymefree substrateenzyme-product complex

Regional Variations

General Brazilian Portuguese
complexo enzima-substrato
Standard term used in biochemistry and molecular biology contexts
Portugal
complexo enzima-substrato
Same usage as in Brazil; consistent across Portuguese-speaking scientific communities
Academic/Scientific
complexo E-S
Abbreviated form commonly used in research papers and lectures

Related Words

enzymesubstrateactive siteMichaelis-Menten kineticscatalysisbiochemical reactionenzyme inhibitiontransition state

Related Idioms & Phrases

lock-and-key model (describing enzyme-substrate binding)
induced-fit model (describing the conformational changes in enzyme-substrate complex formation)
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