noun
definition
A diazine in which the two nitrogen atoms are in the meta- positions; it is the basis of three of the bases found in DNA and RNA: thymine, uracil and cytosine
Examples of pyrimidine in a Sentence
The purins themselves may be considered as a combination of the pyrimidine and glyoxaline ring systems. For formulae see below; the numbers about the first ring explain the orientation of pyrimidine derivatives.
It is considered to inhibit de novo pyrimidine synthesis in a manner similar to BQR (Figure 4).
Purine bases are colored red, and pyrimidine bases are colored blue.
Altered erythrocyte nucleotide patterns are characteristic of inherited disorders of purine and pyrimidine metabolism.
This proton transfer is promoted by a glutamate residue adjacent to the pyrimidine ring.
The same applies to the pyrimidine analog 5-fluorouracil used principally in colon and breast cancer.