Escherichia coli K-12 substr. MG1655 Compound Class: a nucleobase

Synonyms: a nucleotide base, a nitrogenous base

Superclasses: a nucleic acid component
an organic heterocyclic compoundan organonitrogen heterocyclic compound

Nucleobases are the parts of nucleic acids (DNA and RNA) that are involved in pairing of the two strands. The primary nucleobases are cytosine, guanine, adenine (found in both DNA and RNA), thymine (found only in DNA) and uracil (found only in RNA), abbreviated as C, G, A, T, and U, respectively. There are many additional nucleobases, usually derived from the primary ones.

Based on their structure, nucleobases are divided into purines and pyrimidines.

Child Classes: a 7-deazapurine base (1), a modified nucleobase (8), a nucleobase within a nucleic acid (0), a purine base (4), a pyrimidine base (3)

Unification Links: Wikipedia:Nucleobase

In Transport reactions:
a nucleobase[periplasm]a nucleobase[extracellular space]

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Please cite the following article in publications resulting from the use of EcoCyc: Nucleic Acids Research 41:D605-12 2013
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