guanine deaminase: meaning, definition, pronunciation and examples
Very LowTechnical/Scientific
Quick answer
What does “guanine deaminase” mean?
An enzyme that catalyzes the deamination (removal of an amino group) of guanine, converting it to xanthine.
Audio
Pronunciation
Definition
Meaning and Definition
An enzyme that catalyzes the deamination (removal of an amino group) of guanine, converting it to xanthine.
In biochemistry and molecular biology, it is a key enzyme in purine metabolism and nucleotide salvage pathways. Its activity is crucial for the breakdown and recycling of guanine nucleotides, and its dysfunction can be linked to certain metabolic disorders. It's often studied in contexts of genetics, enzymology, and cellular metabolism.
Dialectal Variation
British vs American Usage
Differences
No lexical differences. Spelling conventions are identical for this term. Pronunciation may show slight variation (see IPA).
Connotations
None; purely denotative and technical in both varieties.
Frequency
Equally rare and confined to specialized scientific literature in both regions.
Grammar
How to Use “guanine deaminase” in a Sentence
[Substrate/Agent] is a substrate for guanine deaminase.Guanine deaminase catalyzes [Process/Reaction].The [Gene/Enzyme] guanine deaminase is expressed in [Location/Tissue].Vocabulary
Collocations
Usage
Meaning in Context
Business
Not used.
Academic
Exclusively used in academic texts, particularly in biochemistry, molecular biology, genetics, and medical research papers and textbooks.
Everyday
Never used in everyday conversation.
Technical
Core term in technical laboratory reports, scientific discussions, enzyme catalogs, and genetic databases.
Vocabulary
Synonyms of “guanine deaminase”
Neutral
Weak
Watch out
Common Mistakes When Using “guanine deaminase”
- Misspelling as 'guanine deaminaze' or 'guanine deaminise'.
- Incorrect hyphenation: 'guanine-deaminase' (should be open compound or solid).
- Confusing it with similar enzymes like 'adenine deaminase' or 'cytidine deaminase'.
FAQ
Frequently Asked Questions
Yes, 'guanase' is an older, less specific synonym for guanine deaminase.
It is expressed in various tissues, with particularly high activity in the liver, brain, and kidneys.
It is crucial for recycling purine bases, preventing the accumulation of guanine, and maintaining the balance of nucleotides necessary for DNA/RNA synthesis and cellular energy transfer.
While rare, deficiencies or abnormalities in guanine deaminase activity have been studied in relation to some forms of gout, neurological disorders, and certain types of cancer due to its role in purine metabolism.
An enzyme that catalyzes the deamination (removal of an amino group) of guanine, converting it to xanthine.
Guanine deaminase is usually technical/scientific in register.
Guanine deaminase: in British English it is pronounced /ˈɡwɑː.niːn diːˈæm.ɪ.neɪz/, and in American English it is pronounced /ˈɡwɑː.niːn diˈæm.ə.neɪs/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine a tiny factory machine (the DEAMINASE) in a cell that specifically takes in GUANINE (a building block of DNA/RNA) and removes an 'A' group (de-AMIN-ates it), turning it into a different part (xanthine). 'Guanine Deaminase' = 'Guanine' + 'De-Ammonia-making-enzyme'.
Conceptual Metaphor
An enzyme is a specialized machine/tool (catalytic agent). Guanine deaminase is a specific 'editor' or 'processor' that modifies a single molecular 'letter' (guanine) in the cell's chemical 'alphabet'.
Practice
Quiz
What is the primary biochemical function of guanine deaminase?