guanosine: meaning, definition, pronunciation and examples
C2Technical / Scientific
Quick answer
What does “guanosine” mean?
A nucleoside component of RNA, consisting of guanine linked to a ribose sugar.
Audio
Pronunciation
Definition
Meaning and Definition
A nucleoside component of RNA, consisting of guanine linked to a ribose sugar.
A fundamental building block of nucleic acids (RNA and DNA, where it is deoxyguanosine) and a key molecule in cellular energy transfer and signaling (e.g., as cyclic guanosine monophosphate, cGMP).
Dialectal Variation
British vs American Usage
Differences
No significant lexical or spelling differences; usage is identical in professional scientific contexts.
Connotations
None beyond its scientific denotation.
Frequency
Used with equal, highly specialised frequency in both varieties.
Grammar
How to Use “guanosine” in a Sentence
[to be] composed of guanosine[to contain] guanosine[to phosphorylate] guanosine[to replace] guanosine with [an analogue]Vocabulary
Collocations
Examples
Examples of “guanosine” in a Sentence
verb
British English
- The enzyme will guanylate the compound, adding a guanosine moiety.
American English
- Researchers sought to guanylate the precursor to form guanosine.
adjective
British English
- The guanosine concentration was measured spectrophotometrically.
American English
- The reaction has a specific guanosine requirement.
Usage
Meaning in Context
Business
Virtually never used, except potentially in highly technical biotech/pharma corporate reports.
Academic
Core term in life sciences papers, textbooks, and lectures on genetics, biochemistry, and cell biology.
Everyday
Not used in everyday conversation.
Technical
The primary register. Used precisely to describe molecular structures, pathways (e.g., 'GTP-binding protein'), and drug mechanisms (e.g., 'guanosine analogue antiviral').
Watch out
Common Mistakes When Using “guanosine”
- Mispronouncing the first syllable as 'gwain-' or 'gan-'.
- Confusing 'guanosine' (the nucleoside) with 'guanine' (the nitrogenous base alone).
- Using it in non-scientific contexts.
FAQ
Frequently Asked Questions
Not exactly. The deoxy form, deoxyguanosine (where the sugar is deoxyribose), is the corresponding building block in DNA. 'Guanosine' specifically refers to the ribose-containing form found in RNA.
Guanine is just the nitrogenous base. Guanosine is the complete nucleoside, comprising guanine chemically attached to a ribose sugar molecule.
It is essential for constructing RNA, acts as a precursor for vital signalling molecules like cGMP, and its phosphorylated forms (e.g., GTP) serve as energy sources and molecular switches in countless cellular processes.
Yes, but it's not discussed in nutrition. It is present in all cellular material. As a flavour enhancer, disodium guanylate (E627), derived from guanosine, is used in processed foods like snacks and instant noodles.
A nucleoside component of RNA, consisting of guanine linked to a ribose sugar.
Guanosine is usually technical / scientific in register.
Guanosine: in British English it is pronounced /ˈɡwɑːnəsiːn/, and in American English it is pronounced /ˈɡwɑːnəˌsiːn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: 'GUANine + ribOSE = GUANOSINE.' It's the 'osine' form of the base guanine.
Conceptual Metaphor
A 'building block' or 'letter' in the genetic 'alphabet' and 'code'; a 'currency' or 'energy coin' in cellular metabolism (GTP).
Practice
Quiz
Guanosine triphosphate (GTP) is primarily known for its role in: