cytidine
Definition
- Noun:
- A nucleoside component of RNA: Cytidine is a fundamental building block of ribonucleic acid (RNA). It is composed of the nucleobase cytosine linked to a ribose sugar molecule.
- A biochemical compound: In biochemistry, cytidine refers to the specific molecule formed when cytosine is attached to a ribose ring via a β-N1-glycosidic bond.
Usage Examples
- Noun:
- Cytidine is one of the four standard nucleosides in RNA.
- The enzyme catalyzes the conversion of uridine to cytidine.
- Researchers studied the role of cytidine deaminase in nucleotide metabolism.
Advanced Usage
"Cytidine triphosphate (CTP)": The triphosphate form of cytidine, which serves as a high-energy molecule and a direct precursor for RNA synthesis.
- CTP provides the energy and the cytidine unit for the biosynthesis of RNA.
"Cytidine deamination": A biochemical process where an amino group is removed from cytidine, converting it to uridine.
- Cytidine deamination is a common form of RNA editing.
Variants and Related Words
Deoxycytidine (n): The deoxyribose counterpart of cytidine, where the sugar is deoxyribose instead of ribose. It is a component of DNA.
- Deoxycytidine is incorporated into DNA strands during replication.
Cytidylate (n): The anionic form of cytidine monophosphate (CMP), a nucleotide.
- Cytosine (n): The specific pyrimidine nucleobase that forms part of the cytidine molecule.
Synonyms
- C (Abbreviation): In the context of genetics and nucleic acid sequences, cytidine is often represented by the single letter 'C'.
- Ribosylcytosine (n): A systematic chemical name for cytidine, emphasizing its structure as cytosine attached to ribose.
Related Phrases and Compounds
- Cytidine monophosphate (CMP): The nucleotide form where cytidine is attached to one phosphate group.
- Cytidine diphosphate (CDP): The nucleotide form where cytidine is attached to two phosphate groups.
- Cytidine kinase: An enzyme that phosphorylates cytidine to form its monophosphate.
Noun
-
a nucleoside component of DNA; composed of cytosine and deoxyribose
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