Endonuclease_NS

DNA/RNA non-specific endonuclease
Endonuclease_NS
SMART accession number:SM00892
Description: A family of bacterial and eukaryotic endonucleases share the following characteristics: they act on both DNA and RNA, cleave double-stranded and single-stranded nucleic acids and require a divalent ion such as magnesium for their activity. An histidine has been shown to be essential for the activity of the Serratia marcescens nuclease. This residue is located in a conserved region which also contains an aspartic acid residue that could be implicated in the binding of the divalent ion.
Interpro abstract (IPR001604): A family of bacterial and eukaryotic endonucleases EC 3.1.30 share the following characteristics: they act on both DNA and RNA, cleave double-stranded and single-stranded nucleic acids and require a divalent ion such as magnesium for their activity. A histidine has been shown [(PUBMED:8078761)] to be essential for the activity of the Serratia marcescens nuclease. This residue is located in a conserved region which also contains an aspartic acid residue that could be implicated in the binding of the divalent ion.
GO function:hydrolase activity (GO:0016787), metal ion binding (GO:0046872), nucleic acid binding (GO:0003676)
Family alignment:
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There are 1243 Endonuclease_NS domains in 1211 proteins in SMART's nrdb database.

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