Ribonucleotide reductase, stirrup (IPR015146)

Short name: RNR_stirrup

Overlapping homologous superfamilies


Domain relationships



The Stirrup domain, found in the prokaryotic protein ribonucleotide reductase, has a molecular mass of 9 kDa and is folded into an alpha/beta structure. It allows for binding of the reductase to DNA via electrostatic interactions, since it has a predominance of positive charges distributed on its surface [PMID: 10891276].

GO terms

Biological Process

No terms assigned in this category.

Molecular Function

GO:0016788 hydrolase activity, acting on ester bonds

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.