pyrimidine

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pyrimidine

 [pĭ-rim´ĭ-dēn]
an organic compound that is the fundamental form of the pyrimidine bases, which include cytosine, thymine, and uracil.

py·rim·i·dine (Pyr),

(pī-rim'i-dēn),
1,3-Diazine; a heterocyclic substance, the formal parent of several "bases" present in nucleic acids (uracil, thymine, cytosine) as well as of the barbiturates.

pyrimidine

/py·rim·i·dine/ (pĭ-rim´ĭ-dēn) an organic compound, C4H4N2, the fundamental form of the pyrimidine bases, including uracil, cytosine, and thymine.

pyrimidine

(pī-rĭm′ĭ-dēn′, pĭ-)
n.
1. A single-ringed, crystalline organic base, C4H4N2, that is the parent compound of a large group of biologically important compounds.
2. Any of a group of substituted derivatives of pyrimidine, including the nitrogen bases uracil, cytosine, and thymine, which are components of nucleic acids. Barbiturates and certain other drugs are also pyrimidines.

pyrimidine

[pərim′ədēn]
an organic compound of heterocyclic nitrogen found in nucleic acids and in many drugs, including the antiviral drugs acyclovir, ribavirin, and trifluridine.

py·rim·i·dine

(pir-im'i-dēn)
A heterocyclic substance, the formal parent of several "bases" present in nucleic acids (uracil, thymine, cytosine) as well as of the barbiturates.

pyrimidine

A nitrogenous base compound. Two pyrimidines, cytosine and thymine, are the DNA bases which, with two PURINES, form the genetic code. A third pyrimidine, uracil, takes the place of thymine in RNA.

pyrimidine

one of three types of bases found in NUCLEIC ACIDS, with a single ring structure. DNA contains CYTOSINE and THYMINE, RNA contains cytosine and URACIL. Pyrimidines always pair with PURINES in DNA.

pyrimidine

an organic compound that is the fundamental form of the pyrimidine bases, including uracil, cytosine and thymine.

A pyrimidine
cytosine.
References in periodicals archive ?
Thus, the major toxic properties of four potential hepatic protectors of pyrimidine derivatives class were studied.
However, <15% of purines, pyrimidines, and derivatives and <30% of carbohydrates and intermediates had Spearman correlations or ICCs [greater than or equal to] 0.
Below are the methods for the preparation of each pyrimidine derivatives
Application of simple chromatographic methods for the diagnosis of defects in pyrimidine degradation.
Purine and pyrimidine species were first measured a century ago [see Ref.
These laboratories all used standard HPLC techniques (reversed-phase column, quantification by reading the absorbance at 260 nm) for measurement of purines and pyrimidines in body fluids.
Figure 7 shows the voltammetirc behavior of purines and pyrimidines mixture immobilized on electrodes modified with poly-aminophenols, in phosphate buffer (pH 7.
Teriflunomide Mechanism of Action Inhibition of Pyrimidine Synthesis
Developed as a folic acid analogue, methotrexate inhibits purine and pyrimidine synthesis, which accounts for its efficacy in the therapy of cancer as well as for some of its toxicities.
This initial screening led to the discovery of a class of pyrimidines that improved cell growth.
It is not burned as fuel by the body, but is instead preserved for the work of synthesizing an important class of compounds in the body called purines and pyrimidines," he said.