glycoprotein: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “glycoprotein” mean?
A protein with attached carbohydrate (sugar) groups.
Audio
Pronunciation
Definition
Meaning and Definition
A protein with attached carbohydrate (sugar) groups.
A large biomolecule consisting of a protein molecule covalently bonded to one or more carbohydrate groups, often found on the surface of cells where they play crucial roles in cellular communication, immune response, and structural integrity.
Dialectal Variation
British vs American Usage
Differences
No significant spelling, grammatical, or lexical differences exist for this term between British and American English. Usage is identical across scientific communities.
Connotations
Purely scientific/technical with no cultural or regional connotations.
Frequency
Equally low-frequency and specialized in both varieties.
Grammar
How to Use “glycoprotein” in a Sentence
glycoprotein + of + [type/origin] (e.g., glycoprotein of the influenza virus)glycoprotein + on/in + [location] (e.g., glycoprotein on the cell membrane)Vocabulary
Collocations
Examples
Examples of “glycoprotein” in a Sentence
adjective
British English
- The glycoprotein component was analysed.
- They studied glycoprotein biosynthesis.
American English
- The glycoprotein structure was elucidated.
- They targeted the glycoprotein receptor.
Usage
Meaning in Context
Business
Extremely rare, possibly only in biotech/pharma contexts discussing drug targets (e.g., 'The drug targets a specific glycoprotein on cancer cells').
Academic
Common in biochemistry, molecular biology, immunology, and medical research papers and textbooks.
Everyday
Virtually never used outside of specialized education or health news (e.g., 'The spike protein of the coronavirus is a glycoprotein').
Technical
The primary register. Used precisely to describe biomolecules in laboratory, clinical, and research settings.
Vocabulary
Synonyms of “glycoprotein”
Strong
Weak
Vocabulary
Antonyms of “glycoprotein”
Watch out
Common Mistakes When Using “glycoprotein”
- Misspelling as 'glucoprotein' (common due to 'glucose').
- Incorrectly using it to refer to any carbohydrate or any protein, rather than the specific conjugated molecule.
FAQ
Frequently Asked Questions
No, they are related but distinct. Glycoproteins have short, branched carbohydrate chains, while proteoglycans have long, unbranched chains (glycosaminoglycans) and are mostly carbohydrate by weight.
Their functions are diverse, including cell-cell recognition (immune system), acting as receptors for hormones and signals, providing structural support, and facilitating cell adhesion.
Yes, antibodies (immunoglobulins), many hormones (like erythropoietin), and the proteins that determine blood groups (A, B, O antigens) are all glycoproteins.
'Glyco-' is a general prefix from Greek 'glykys' (sweet), referring to sugars/carbohydrates. 'Gluco-' is more specific, usually referring to glucose itself.
A protein with attached carbohydrate (sugar) groups.
Glycoprotein is usually technical/scientific in register.
Glycoprotein: in British English it is pronounced /ˌɡlaɪkəʊˈprəʊtiːn/, and in American English it is pronounced /ˌɡlaɪkoʊˈproʊtiːn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think 'Gluco' (like glucose, a sugar) + 'protein'. A glycoprotein is a 'sweetened' or 'sugar-coated' protein.
Conceptual Metaphor
Often metaphorically described as an 'identification tag' or 'antenna' on a cell's surface, facilitating communication.
Practice
Quiz
A glycoprotein is defined as a molecule consisting of: