DNA damage checkpoint control protein Rad17 (IPR016587)

Short name: Rad17

Overlapping homologous superfamilies


Family relationships

  • Rad1/Rec1/Rad17 (IPR003021)
    • DNA damage checkpoint control protein Rad17 (IPR016587)


This entry represents Rad17 from budding yeast (the homologue of human and S. pombe Rad1). Rad17 is a component of the checkpoint clamp complex (Ddc1/Mec3/Rad17) involved in the surveillance mechanism that allows the DNA repair pathways to act to restore the integrity of the DNA prior to DNA synthesis or separation of the replicated chromosomes [PMID: 8649984, PMID: 7491494, PMID: 9891048]. In S. cerevisiae, the Ddc1-Mec3-Rad17 complex associates with sites of DNA damage and modulates the Mec1 signaling pathway and the activation of Rad53 in response to DNA damage at phase G1 [PMID: 9670034]. The complex also physically regulates DNA polymerase zeta-dependent mutagenesis by controlling the access of polymerase zeta to damaged DNA [PMID: 16169844]. Contrary to its human counterpart, the 9-1-1 complex, the checkpoint clamp complex shows no detectable exonuclease activity [PMID: 12604797].

It's worth noting that the name, Rad17, has been used for a different protein in human and S. pombe. The homologue of the human and S. pombe Rad17 in budding yeast is Rad24.

GO terms

Biological Process

GO:0000077 DNA damage checkpoint
GO:0006302 double-strand break repair
GO:0007131 reciprocal meiotic recombination

Molecular Function

GO:0003684 damaged DNA binding
GO:0003690 double-stranded DNA binding

Cellular Component

GO:0030896 checkpoint clamp complex

Contributing signatures

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