aminotransferase: meaning, definition, pronunciation and examples
C2 (Very rare outside biochemistry/medical contexts)Formal, Technical, Academic, Medical
Quick answer
What does “aminotransferase” mean?
An enzyme that catalyzes the transfer of an amino group from a donor molecule (typically an amino acid) to an acceptor molecule (typically an alpha-keto acid).
Audio
Pronunciation
Definition
Meaning and Definition
An enzyme that catalyzes the transfer of an amino group from a donor molecule (typically an amino acid) to an acceptor molecule (typically an alpha-keto acid).
A crucial class of enzymes involved in amino acid metabolism and synthesis; also called transaminase. They play vital roles in processes like gluconeogenesis, neurotransmitter synthesis, and nitrogen disposal.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or usage differences. The term is international scientific vocabulary.
Connotations
Neutral technical term in both regions.
Frequency
Equally rare and specialized in both dialects, confined to professional/scientific discourse.
Grammar
How to Use “aminotransferase” in a Sentence
The aminotransferase catalyzes the transfer of X to Y.Aminotransferase levels are measured in the blood.An increase in aminotransferase activity indicates...The enzyme is a cytoplasmic aminotransferase.Vocabulary
Collocations
Examples
Examples of “aminotransferase” in a Sentence
adjective
British English
- The aminotransferase reaction was monitored spectrophotometrically.
- Abnormal aminotransferase readings prompted further investigation.
American English
- The aminotransferase pathway is crucial for nitrogen metabolism.
- We observed elevated aminotransferase activity in the sample.
Usage
Meaning in Context
Academic
Essential term in biochemistry and medical research papers. Used in discussions of metabolic pathways, enzyme kinetics, and clinical diagnostics.
Everyday
Virtually never used in everyday conversation.
Technical
Core terminology in clinical pathology (liver function tests), enzymology, metabolic engineering, and pharmaceutical development.
Vocabulary
Synonyms of “aminotransferase”
Neutral
Weak
Watch out
Common Mistakes When Using “aminotransferase”
- Misspelling as 'aminotranspherase'.
- Confusing it with other enzymes like 'deaminase' (removes amino groups) or 'kinase' (transfers phosphate groups).
- Using it in non-technical contexts where 'enzyme' or a simpler term would suffice.
FAQ
Frequently Asked Questions
They are synonyms. 'Aminotransferase' is the systematic name recommended by biochemistry nomenclature committees, while 'transaminase' is the older, traditional name. Both refer to the same class of enzymes (EC 2.6.1.-).
They are crucial diagnostic markers. When liver or heart cells are damaged, they leak aminotransferases like ALT and AST into the bloodstream. Measuring these levels in a blood test helps diagnose conditions like hepatitis, cirrhosis, or myocardial infarction.
Yes. Alanine aminotransferase (ALT) catalyzes: Alanine + α-ketoglutarate ⇌ Pyruvate + Glutamate. It transfers the amino group from alanine to α-ketoglutarate, producing pyruvate and glutamate.
Only if the learner is specializing in biochemistry, medicine, or a related life science. For general English proficiency, it is not a necessary word.
An enzyme that catalyzes the transfer of an amino group from a donor molecule (typically an amino acid) to an acceptor molecule (typically an alpha-keto acid).
Aminotransferase is usually formal, technical, academic, medical in register.
Aminotransferase: in British English it is pronounced /əˌmiː.nəʊˈtræns.fər.eɪz/, and in American English it is pronounced /əˌmiː.noʊˈtræns.fɚ.eɪs/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: AMINO (for amino acid) + TRANSFER (moves something) + ASE (enzyme suffix). So, an enzyme that transfers amino groups.
Conceptual Metaphor
A molecular 'forklift truck' that picks up an amino group from one molecule and deposits it onto another.
Practice
Quiz
What is the primary function of an aminotransferase?