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Chemical name 9H-Purin-6-amine
Alternate name 6-aminopurine
Chemical formula C5H5N5
Molecular mass 135.13 g/mol
Melting point 360 - 365 °C
CAS number 73-24-5
Adenine chemical structure

Adenine is one of the two purine nucleobases used in forming nucleotides of the nucleic acids DNA and RNA. In DNA, adenine binds to thymine via two hydrogen bonds to assist in stabilizing the nucleic acid structures. In RNA, adenine binds to uracil, which is used in the cytoplasm for protein synthesis.

Adenine forms adenosine, a nucleoside, when attached to ribose, and deoxyadenosine when attached to deoxyribose; it forms adenosine triphosphate (ATP), a nucleotide, when three phosphate groups are added to adenosine. Adenosine triphosphate is used in cellular metabolism as one of the basic methods of transferring chemical energy between chemical reactions.

In older literature, adenine was sometimes called Vitamin B4. However it is no longer considered a true vitamin or part of Vitamin B.

Some think that, at the origin of life on Earth, the first adenine was formed by the polymerizing of five hydrogen cyanide (HCN) molecules.

External linksEdit

All B vitamins | All D vitamins
Retinol (A) | Thiamine (B1) | Riboflavin (B2) | Niacin (B3) | Pantothenic acid (B5) | Pyridoxine (B6) | Biotin (B7) | Folic acid (B9) | Cyanocobalamin (B12) | Ascorbic acid (C) | Ergocalciferol (D2) | Cholecalciferol (D3) | Tocopherol (E) | Naphthoquinone (K)

ca:Adenina cs:Adenin de:Adenin el:Αδενίνη es:Adenina eo:Adenino fr:Adénine id:Adeninhe:אדנין lt:Adeninas hu:Adenin nl:Adeninept:Adenina sk:Adenín sl:Adenin sr:Аденин fi:Adeniini sv:Adenin vi:Adeninezh:腺嘌呤

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