Cytosine Structure

Posted: September 24, 2016 in Medicine raw material

Cytosine is one of the four capital bases begin in DNA and RNA, forth with adenine, guanine, and thymine (uracil in RNA). It is a pyrimidine derivative, with a heterocyclic ambrosial ring and two substituents absorbed (an amine accumulation at position 4 and a keto accumulation at position 2). The nucleoside of cytosine is cytidine. In Watson-Crick abject pairing, it forms three hydrogen bonds with guanine.

As a nitrogenous base, cytosine is abounding of nitrogen atoms (it has three). It aswell has one ring of carbon, which makes it a pyrimidine. A purine, on the added hand, has two rings of carbon. There are two pyrimidines (cytosine and thymine) and two purines (adenine and guanine) in DNA. RNA aswell has two pyrimidines (cytosine and uracil) and two purines (adenine and guanine).

In DNA, adenine and thymine are present in the aforementioned percentages and consistently brace with anniversary other. That leaves cytosine to brace with its double-ringed associate guanine. Cytosine aswell pairs with guanine in RNA.


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