What kind of nucleotide?

Nucleotides are divided into ribonucleotides and deoxynucleotides.

Phosphate esters of nucleosides are called nucleotides, which are divided into ribonucleotides and deoxynucleotides. Pentose of ribonucleoside can form 2', 3' and 5' nucleotides respectively; Deoxyribonucleoside can only form 3' and 5'- nucleotides;

2'-O- methyl nucleoside also has only two nucleotides. Most of the free nucleotides in organisms exist in the form of 5'. When RNA is hydrolyzed by alkali, a mixture of 2', 3'- ribonucleotides can be obtained.

Extended data:

Nucleotide is an important structure of all living things, such as DNA and RNA. Understanding the early formation mechanism of nucleotides is a great challenge to decipher the long-unsolved code of the origin of life.

Nucleotide molecules are mainly composed of phosphoric acid, ribose and bases. The bases of RNA mainly include two purines, A and G, and two pyrimidines, C and U.

Purine and pyrimidine can be connected in turn on the same carbohydrate scaffold to form nucleotide molecules. 8- oxygen-adenine and 8- oxygen-guanine, which constitute purine nucleotides, can be formed under exactly the same chemical conditions as pyrimidine nucleotides, and the same chemical precursor molecule can simultaneously generate purine and pyrimidine nucleotides.

Coptic China-The early formation mechanism of different nucleotides is the same.

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