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In [[biology]], '''nucleosides''' are "[[purine]] or [[pyrimidine]] bases attached to a ribose or deoxyribose."<ref>{{MeSH}}</ref> | In [[biology]], '''nucleosides''' are "[[purine]] or [[pyrimidine]] bases attached to a ribose or deoxyribose."<ref>{{MeSH}}</ref> | ||
A [[nucleotide]] is a nucleoside (a [[purine]] or [[pyrimidine]] base plus a | {| border="1" cellspacing="0" align="right" | ||
|- align="center" valign="bottom" | |||
! Nucleobase | |||
! Ribonucleoside<br/>([[RNA]]) | |||
! Deoxynucleoside<br/>([[DNA]]) | |||
|- | |||
| colspan="3" align="center"|[[Purine]] nucleobases | |||
|- align="center" valign="" | |||
| [[Adenine]]<br/> | |||
| [[Adenosine]]<br/>A | |||
| [[Deoxyadenosine]]<br/>dA | |||
|- align="center" valign="" | |||
| [[Guanine]]<br/> | |||
| [[Guanosine]]<br/>G | |||
| [[Deoxyguanosine]]<br/>dG | |||
|- | |||
|colspan="3" align="center"|[[Pyrimidine]] nucleobases | |||
|- align="center" valign="" | |||
| [[Thymine]]<br/> | |||
| [[5'-Methyluridine]]<br/>m<sup>5</sup>U<br/>(not present in RNA) | |||
| [[Thymidine]]<br/>dT | |||
|- align="center" valign="" | |||
| [[Uracil]]<br/> | |||
| [[Uridine]]<br/>U | |||
| [[Deoxyuridine]]<br/>dU<br/>(not present in DNA) | |||
|- align="center" valign="" | |||
| [[Cytosine]]<br/> | |||
| [[Cytidine]]<br/>C | |||
| [[Deoxycytidine]]<br/>dC | |||
|- | |||
|} | |||
[[Purine]] or [[pyrimidine]] bases (nucleobases) attached to ribose are called ribonucleosides. | |||
[[Purine]] or [[pyrimidine]] bases (nucleobases) attached to deoxyribose are called deoxynucleosides. | |||
A [[nucleotide]] is a nucleoside (a [[purine]] or [[pyrimidine]] base plus a pentose sugar) with a phosphate group added. | |||
==References== | ==References== | ||
<references/> | <references/>[[Category:Suggestion Bot Tag]] | ||
Latest revision as of 11:00, 27 September 2024
In biology, nucleosides are "purine or pyrimidine bases attached to a ribose or deoxyribose."[1]
| Nucleobase | Ribonucleoside (RNA) |
Deoxynucleoside (DNA) |
|---|---|---|
| Purine nucleobases | ||
| Adenine |
Adenosine A |
Deoxyadenosine dA |
| Guanine |
Guanosine G |
Deoxyguanosine dG |
| Pyrimidine nucleobases | ||
| Thymine |
5'-Methyluridine m5U (not present in RNA) |
Thymidine dT |
| Uracil |
Uridine U |
Deoxyuridine dU (not present in DNA) |
| Cytosine |
Cytidine C |
Deoxycytidine dC |
Purine or pyrimidine bases (nucleobases) attached to ribose are called ribonucleosides.
Purine or pyrimidine bases (nucleobases) attached to deoxyribose are called deoxynucleosides.
A nucleotide is a nucleoside (a purine or pyrimidine base plus a pentose sugar) with a phosphate group added.
References
- ↑ Anonymous (2024), Nucleoside (English). Medical Subject Headings. U.S. National Library of Medicine.