nitrogenous base


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Related to nitrogenous base: nucleic acid, DNA, amino acid, DNA structure

nitrogenous base

[nī′trä·jə·nəs ′bās]
(biochemistry)
A purine or a pyrimidine derivative which is one of the three components of a nucleotide of nucleic acids. Also known as base.
References in periodicals archive ?
It has been reported that a number of substances, both of synthetic and natural origins, exhibit bioisosteric relationship [5] including essential amino acids, nitrogenous bases (purines, pyrimidines), xanthine derivatives, neueurotransmitters, salicylic and anthranilic acid etc.
Each nucleotide consists of three basic items: deoxyribose sugar, phosphate group and a nitrogenous base. The nitrogenous bases are of two types: purins (Adenine and Guanine) and pyrimidins (Cytosine and Thymine).
Nucleotides are building blocks of DNA, and each of them contains three components: sugar, phosphate group, and nitrogenous base. There are four different nitrogenous bases which contribute in DNA structure: Thymine (T) and Cytosine (C) which are called pyrimidines and Adenine (A) and Guanine (G) which are called purines.
The SOP model is used as an analytic device to provide a theoretical description for the structure of a nucleotide (the configuration of a nitrogenous base with a sugar and a phosphate group) that forms strands of DNA (chromosomes).