aminopeptidase: meaning, definition, pronunciation and examples
Very Low / SpecialistTechnical / Scientific (Biology, Biochemistry, Medicine)
Quick answer
What does “aminopeptidase” mean?
An enzyme that catalyzes the removal of the amino-terminal amino acid from a protein or peptide.
Audio
Pronunciation
Definition
Meaning and Definition
An enzyme that catalyzes the removal of the amino-terminal amino acid from a protein or peptide.
A class of proteolytic enzymes that cleave amino acids from the N-terminus of proteins and peptides, playing crucial roles in protein digestion, maturation, and degradation within biological systems.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or spelling differences. Potential minor variation in pronunciation (see IPA).
Connotations
Identical technical connotations in both varieties.
Frequency
Identical, extremely low outside professional/specialist contexts.
Grammar
How to Use “aminopeptidase” in a Sentence
The [specific] aminopeptidase [verb: cleaves, hydrolyzes, removes] [substrate] from the N-terminus.Aminopeptidase activity was [verb: measured, inhibited, detected] in the [sample].Vocabulary
Collocations
Examples
Examples of “aminopeptidase” in a Sentence
verb
British English
- The protein was aminopeptidase-treated to remove the terminal residue.
- Researchers aim to aminopeptidase-digest the sample.
American English
- The sample was aminopeptidase-digested prior to analysis.
- They attempted to aminopeptidase-cleave the polypeptide.
adjective
British English
- The aminopeptidase activity was markedly reduced.
- An aminopeptidase-type mechanism is proposed.
American English
- The aminopeptidase inhibitor showed promise.
- We observed an aminopeptidase-like effect.
Usage
Meaning in Context
Business
Virtually never used, except possibly in biotech/pharma R&D reports.
Academic
Core term in biochemistry, molecular biology, and physiology papers. Used with high precision.
Everyday
Never used in everyday conversation.
Technical
Essential term in laboratory protocols, enzyme catalogs, medical research (e.g., cancer biomarkers), and pharmaceutical development.
Vocabulary
Synonyms of “aminopeptidase”
Neutral
Weak
Vocabulary
Antonyms of “aminopeptidase”
Watch out
Common Mistakes When Using “aminopeptidase”
- Misspelling as 'aminopeptadise', 'aminopeptidaze'.
- Confusing it with 'aminotransferase' (a completely different enzyme class).
- Using it without necessary specification (e.g., 'an aminopeptidase' is vague; 'leucine aminopeptidase' is precise).
FAQ
Frequently Asked Questions
It refers to the amino acid, the basic building block of proteins and peptides, which this enzyme acts upon.
Yes, levels of specific aminopeptidases (like LAP) can be diagnostic markers for liver or kidney disease, and their inhibitors are investigated as drugs for cancer and hypertension.
Not precisely. 'Protease' is a vast category of protein-cleaving enzymes. 'Aminopeptidase' is a specific type of exopeptidase protease that only works at the very start (N-terminus) of the chain.
It is found in many cells and tissues. A key example is intestinal brush border aminopeptidase, essential for digesting dietary proteins, and various cytosolic forms involved in cellular protein regulation.
An enzyme that catalyzes the removal of the amino-terminal amino acid from a protein or peptide.
Aminopeptidase is usually technical / scientific (biology, biochemistry, medicine) in register.
Aminopeptidase: in British English it is pronounced /ˌæmɪnəʊˈpɛptɪdeɪz/, and in American English it is pronounced /əˌminoʊˈpɛptəˌdeɪs/ or /ˌæmənoʊˈpɛptəˌdeɪs/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: AMINO (the building block) + PE PTIDE (the chain) + ASE (the enzyme cutter). It's the 'front-end clipper' that snips AMINO acids off the start of a PE PTIDE.
Conceptual Metaphor
A N-terminal editor or proofreader; a molecular pair of scissors that starts cutting from the very first link in the chain.
Practice
Quiz
What is the primary site of action for an aminopeptidase?