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5-hydroxycytosine

Structure via PubChem · Public domain (PubChem)

EntityQ21099622· pop 6· linked from 8 articles

5-hydroxycytosine

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Also known as hydroxycytosine

5-Hydroxycytosine is an oxidized form of cytosine that is associated with an increased frequency of C to T transition mutations, with some C to G transversions. It does not distort the DNA molecule and is readily bypassed by replicative DNA polymerases.

Chemical data

Formula
C4H5N3O2
Molecular weight
127.1 g/mol
IUPAC name
6-amino-5-hydroxy-1H-pyrimidin-2-one
SMILES
C1=NC(=O)NC(=C1O)N
InChIKey
NLLCDONDZDHLCI-UHFFFAOYSA-N
XLogP
-1.3
Polar surface area
87.7 Ų
H-bond donors
3
H-bond acceptors
3
Formal charge
0

via PubChem

Wikidata facts

Mass
127.0381764
Show 2 more facts
canonical SMILES
C1=NC(=O)NC(=C1O)N
chemical formula
C₄H₅N₃O₂
Sources (2)

via Wikidata · CC0

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Encyclopedic overview

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Contents
  • References

5-Hydroxycytosine is an oxidized form of cytosine that is associated with an increased frequency of C to T transition mutations, with some C to G transversions. It does not distort the DNA molecule and is readily bypassed by replicative DNA polymerases.

It has been shown in vitro to miscode for adenine.

Excerpted from Wikipedia’s “5-hydroxycytosine” article, available under the CC BY-SA 4.0 licence.

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