dipeptidase: meaning, definition, pronunciation and examples
Low (C2)Technical/Scientific
Quick answer
What does “dipeptidase” mean?
An enzyme that catalyzes the hydrolysis of dipeptides into their constituent amino acids.
Audio
Pronunciation
Definition
Meaning and Definition
An enzyme that catalyzes the hydrolysis of dipeptides into their constituent amino acids.
A specific type of hydrolase enzyme, often found in the brush border of the small intestine and in many other tissues, playing a crucial role in the final stages of protein digestion by breaking down dipeptides into free amino acids for absorption.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling conventions follow the norm (e.g., 'catalyses' vs. 'catalyzes' in surrounding text).
Connotations
Identical technical connotations in both varieties.
Frequency
Equally rare and specialized in both UK and US English, confined to professional/scientific discourse.
Grammar
How to Use “dipeptidase” in a Sentence
The dipeptidase hydrolyses [dipeptide][Subject] exhibits dipeptidase activityA deficiency in dipeptidase leads to [pathological condition]Vocabulary
Collocations
Examples
Examples of “dipeptidase” in a Sentence
verb
British English
- The enzyme dipeptidase catalyses the reaction efficiently.
- This tissue dipeptidases the substrate rapidly.
American English
- The enzyme dipeptidase catalyzes the reaction efficiently.
- This tissue dipeptidases the substrate rapidly.
adverb
British English
- [No standard adverbial form]
American English
- [No standard adverbial form]
adjective
British English
- The dipeptidase activity was measured.
- A dipeptidase deficiency was suspected.
American English
- The dipeptidase activity was measured.
- A dipeptidase deficiency was suspected.
Usage
Meaning in Context
Business
Not used.
Academic
Central in biochemistry, nutrition, and physiology papers discussing protein metabolism, digestive disorders, or enzyme kinetics.
Everyday
Virtually never used.
Technical
Precisely used in lab reports, medical diagnoses (e.g., prolidase deficiency), pharmaceutical research targeting nutrient absorption.
Watch out
Common Mistakes When Using “dipeptidase”
- Mispronouncing it as 'di-pep-TI-dase' (stress should be on 'pep').
- Using it as a general term for any protease.
- Misspelling as 'dipeptadase' or 'dipeptidaze'.
FAQ
Frequently Asked Questions
No, dipeptidase is a specific type of peptidase (a subclass of proteases) that acts only on dipeptides (two amino acids linked), whereas proteases can act on longer polypeptide chains.
They are highly active on the brush border membrane of the small intestine's epithelial cells, where they complete protein digestion. They are also found in many other tissues like the kidney and blood.
Complete absence is rare and serious. Specific deficiencies (e.g., prolidase deficiency) cause health problems like skin ulcers and developmental delay, highlighting their essential role in recycling amino acids.
It ensures efficient absorption of amino acids from dietary proteins. Without it, dipeptides would not be fully utilized, potentially leading to amino acid deficiencies even with adequate protein intake.
An enzyme that catalyzes the hydrolysis of dipeptides into their constituent amino acids.
Dipeptidase is usually technical/scientific in register.
Dipeptidase: in British English it is pronounced /daɪˈpɛptɪdeɪz/, and in American English it is pronounced /daɪˈpɛptɪdeɪs/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No established idioms for this technical term]”
Learning
Memory Aids
Mnemonic
Think: 'DI-PEPTIDE-ASE' – An 'ASE' enzyme that breaks apart a 'DI' (two) 'PEPTIDE' (amino acid chain).
Conceptual Metaphor
A molecular pair of scissors specifically designed for cutting two-linked amino acid blocks.
Practice
Quiz
What is the primary function of a dipeptidase?