cytosine


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cytosine

 [si´to-sēn]
cytosine arabinoside cytarabine.

cy·to·sine (Cyt),

(sī'tō-sēn),
A pyrimidine found in nucleic acids.

cytosine

/cy·to·sine/ (si´to-sēn) a pyrimidine base occurring in animal and plant cells, usually condensed with ribose or deoxyribose to form the nucleosides cytidine and deoxycytidine, major constituents of nucleic acids. Symbol C.
cytosine arabinoside  cytarabine.

cytosine

(sī′tə-sēn′)
n. Abbr. C
A pyrimidine base, C4H5N3O, that is the constituent of DNA and RNA involved in base-pairing with guanine.

cytosine (C)

[sī′təsin]
a pyrimidine base that is a component of DNA and RNA. In free or uncombined form it occurs in trace amounts in most cells, usually as a product of the enzymatic hydrolysis of nucleic acids and nucleotides. On hydrolysis, it is converted to urea and ammonia. See also thymine, uracil.

cy·to·sine

(Cyt) (sī'tō-sēn)
A pyrimidine found in nucleic acids.

cytosine

A pyrimidine base, one of those forming the genetic code of DNA and RNA.
Cytosineclick for a larger image
Fig. 128 Cytosine . Molecular structure.

cytosine (C)

one of four types of nitrogenous bases found in DNA, having the single-ring structure of a class known as PYRIMIDINES. Cytosine forms part of a DNA unit called a NUCLEOTIDE and always forms complementary pairs with a DNA purine base called a GUANINE. Cytosine also occurs in RNA molecules.

cytosine

a pyrimidine base found in the nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

cytosine arabinoside
References in periodicals archive ?
Implementations on each of these methods, all hinging on bisulphite modification to separate methycytosine from cytosine, are available and in use for research and increasingly, clinical applications to oncology.
Strong Enhancement of recombinant Cytosine Deaminase Activity in Bifidobacterium longum for Tumor-Targeting Enzyme/Prodrug Therapy.
Lung toxicity following fludara-bine, cytosine arabinoside and mitoxantrone (FLAN) treatment for acute leukemia.
2 V are attributed to the oxidation of guanine, adenine, thymine, and cytosine, respectively.
The latter state indicates molecular mosaicism, in which the content and distribution of methylated cytosine residues differ among different alleles in the same sample.
1] decreased by 37% and the cytosine bands at 1530 and 1493[cm.
Under regular physiological conditions, the base cytosine (C) can undergo spontaneous deamination, or in other words, loss of the ring's projecting -NH2 groups and replacement with an =O.
Tenders are invited for Supply of Monoclonal Anti-5-methyl cytosine antibody-produced in muse clone should be 33D3
Abstract Number: GENO-30Title: Distinct gene expression profile that is not a known survival predictor in tumors from long-term high grade glioma survivors treated with a retroviral replicating vector encoding yeast cytosine deaminaseDate and Time: Saturday, Nov.
During development in mammals, chemical tags called methyl groups are added to certain cytosine nucleotides in the DNA, which affects how nearby genes are expressed.
5-Methylcytidine (5-MeCyd) is cytosine modified by methylation on the fifth position of the cytidine ring.