Nucleosides are glycosylamines made by attaching a nucleobase (often referred to simply as base) to a ribose or deoxyribose ring. Examples of these include cytidine, uridine, adenosine, guanosine, thymidine and inosine.
Nucleoside analog
See analog.
Nucleotide
A nucleoside with a phosphate group attached.
nucleoside
(noo-klee-oh-side)
An organic molecule consisting of a nitrogenous base joined to a five-carbon sugar.
nucleosome ...
Nucleoside A nucleotide without the phosphate.
Nucleotide A building block of a nucleic acid consisting of a base (adenine, thymine, cytosine, guanine, uracil) joined to a sugar (ribose or deoxyribose) and a phosphate.
Nucleoside analog. A synthetic molecule that resembles a naturally occuring nucleoside, but that lacks a bond site needed to link it to an adjacent nucleotide. (See Nucleoside.) ...
Nucleoside A purine or pyrimidine base linked to a sugar.
Nucleosomes The repeating unit of chromatin that consists of 200 base pairs of DNA and two each of the histones H2A, H2B, H3, and H4.
Nucleoside
A sugar-base compound that is a nucleotide precursor. Nucleotides are nucleoside phosphates. A nitrogenous base linked to a sugar molecule.
Related Terms:
Nucleotide ...
nucleosides - compound composed of a purine or pydimidine base linked to either a ribose or deoxyribose sugar. DNA and RNA are not polymers of nucleosides.
Nucleoside analogs. Examples:
zidovudine (AZT)(Retrovir®)
lamivudine (Epivir®)
didanosine (Videx®) ...
NUCLEOSIDE - The composite sugar and purine or pyrimidine base which are present in nucleotides which are the basic building blocks of DNA and RNA. Compare with NUCLEOTIDE:
Nucleoside = Base + Sugar ...
In nucleosides and nucleotides, adenine is linked to the sugar moiety via a ... The ribonucleoside containing adenine is called adenosine. ...
Full article ...
The nucleoside containing adenine as its base.
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Deoxynucleoside triphosphate (dNTP)
- Triphosphorylated ('high energy') precursor required for synthesis of DNA, where N refers to one of the four bases (A, G, T or C)
Deoxyribonuclease (DNase) ...
Adenosine
The nucleoside containing adenine as its base.
Related Terms:
Nucleoside
A sugar-base compound that is a nucleotide precursor. Nucleotides are nucleoside phosphates. A nitrogenous base linked to a sugar molecule.
Nucleoside. A building block of DNA and RNA, consisting of a nitrogenous base linked to a five carbon sugar. (See Nucleoside analog.) Nucleoside analog.
5' or 3' end The nucleoside residues which form nucleic acids are joined by phosphodiester linkages between the 3' C atom of one ribose moiety and the 5' C atom of the next.
For such chemical modifications to be of practical significance, it would be useful to be able to employ the corresponding 2'-modified nucleoside triphosphates in the polymerase-directed synthesis of DNA.
Included in this group are the nucleoside analogs, chemicals that are similar to one of the bases (adenine, cytosine, guanine, and thymine) that comprise DNA, but sufficiently different enough to block viral DNA synthesis.
diffusion of sugars, amino acids and nucleosides, uptake of glucose, transportation of salts, glucose, amino acids, etc.).
 See also: Trans, Cells, Lysis, RNA, Human
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