adenine
Definition
- Noun:
- A purine base found in DNA and RNA: Adenine is one of the four nucleobases that form the basic building blocks of nucleic acids. In DNA, it pairs specifically with thymine; in RNA, it pairs with uracil.
Usage
- Adenine is a fundamental component of genetic material. It is always discussed in the context of molecular biology, genetics, and biochemistry.
- It is typically used as a countable noun (e.g., an adenine, several adenines).
Examples
- Noun:
- The sequence of adenine, thymine, cytosine, and guanine determines genetic information.
- A point mutation replaced an adenine with a guanine in the gene.
Advanced Usage
- "Adenine residue": Refers to a single adenine unit within a DNA or RNA strand.
- The enzyme binds to a specific adenine residue in the promoter region.
- "Adenine nucleotide": Refers to adenine when it is part of a nucleotide, such as adenosine triphosphate (ATP).
- ATP is an adenine nucleotide that serves as the primary energy currency of the cell.
Variants and Related Words
- Adenosine (n): A nucleoside composed of adenine and ribose sugar.
- Adenosine is used in certain heart medications.
- Deoxyadenosine (n): A nucleoside composed of adenine and deoxyribose sugar, found in DNA.
- Adenylate (adj/n): Relating to or derived from adenine (e.g., adenylyl cyclase).
Synonyms
- 6-Aminopurine: The systematic chemical name for adenine.
- A: The standard single-letter abbreviation used in genetics to represent adenine in DNA and RNA sequences.
Related Phrases/Compounds
- Adenine-thymine pair: The specific hydrogen-bonded base pair in DNA.
- The DNA helix is stabilized by adenine-thymine and guanine-cytosine pairs.
- Adenine-uracil pair: The specific base pair formed in RNA molecules.
Noun
-
(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
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