Thymine is one of the four Pyrimidines/nucleobases in the nucleic acid of DNA that are represented by the letters G–C–A–T.
Uracil = 2,4-dioxy pyrimidine
Thymine = 2,4-dioxy-5-methyl pyrimidine
Cytosine = 2-oxy-4-amino pyrimidine
Orotic acid = 2,4-dioxy-6-carboxy pyrimidine
Cytosine is found in both DNA and RNA. Uracil is found only in RNA. Thymine is normally found in DNA. Sometimes tRNA will contain some thymine as well as uracil.
Thymine is also called 5-methyluracil or it may be represented by the capital letter "T" or by its three-letter abbreviation, Thy.
The molecule gets its name from its initial isolation from calf thymus glands by Albrecht Kossel and Albert Neumann in 1893. Thymine is found in both prokaryotic and eukaryotic cells, but it does not occur in RNA viruses.
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- Slightly elevated urinary thymine has no clinical significance.
- High values are associated with inflammatory diseases and cancer.
Elevated pyrimidines and elevated thymine have been reported in dihydropyrimidine dehydrogenase deficiency, a rare genetic disease, which has been associated with seizures and autism.
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2-Hydroxybutyric acid, 2-Hydroxyhippuric acid, 2-Hydroxyisocaproic acid, 2-Hydroxyisovaleric acid, 2-Hydroxyphenylacetic acid, 2-Oxo-4-methiolbutyric acid, 2-Oxoglutaric acid, 2-Oxoisocaproic acid, 2-Oxoisovaleric, 3-Hydroxy-3-methylglutaric, 3-Hydroxybutyric acid, 3-Hydroxyglutaric acid, 3-Indoleacetic acid (IAA), 3-Methyl-2-oxovaleric acid, 3-Methylglutaconic, 3-Methylglutaric acid, 3-Oxoglutaric acid, 4-Cresol, 4-Hydroxybenzoic acid, 4-Hydroxybutyric acid, 4-Hydroxyhippuric acid, 4-Hydroxyphenylacetic acid, 4-Hydroxyphenyllactic acid, 5-Hydroxyindoleacetic acid (5-HIAA), 5-Hydroxymethyl-furoic acid, Acetoacetic acid, Aconitic acid, Adipic acid, Arabinose, Ascorbic acid (Vitamin C), Carboxycitric acid, Citramalic acid, Citric acid, Creatinine, DHPPA (dihydroxyphenylpropionic acid), Dihydroxyphenylacetic acid (DOPAC), Ethylmalonic acid, Fumaric acid, Furan-2,5-dicarboxylic acid, Furancarbonylglycine, GABA, Glutaric acid (Vitamin B2), Glyceric acid, Glycolic acid, Hippuric acid, Homogentisic acid, Homovanillic acid (HVA), HPHPA (3-(3-hydroxyphenyl)-3-hydroxypropionic acid), HVA/DOPAC, HVA/DOPAC Ratio, Kynurenic acid, Lactic acid, Malic acid, Malonic acid, Mandelic acid, Methylcitric acid (Vitamin H), Methylmalonic acid (Vitamin B12), Methylsuccinic acid, N-Acetylaspartic acid, N-Acetylcysteine acid, Orotic acid, Oxalic acid, Pantothenic acid (Vitamin B5), Phenyllactic acid, Phenylpyruvic acid, Phosphoric acid, Pyridoxic acid (Vitamin B6), Pyroglutamic acid, Pyruvic acid, Quinolinic acid, Quinolinic acid/5-HIAA, Sebacic acid, Suberic acid, Succinic acid, Tartaric acid, Thymine, Tricarballyic acid, Uracil
