FunctionEssential for sustained cell growth, maintenance of chromosomal stability, and ATR-dependent checkpoint activation upon DNA damage. Has a weak ATPase activity required for binding to chromatin. Participates in the recruitment of the RAD1-RAD9-HUS1 complex onto chromatin, and in CHEK1 activation. May also serve as a sensor of DNA replication progression, and may be involved in homologous recombination.
Tissue specificityOverexpressed in various cancer cell lines and in colon carcinoma (at protein level). Isoform 2 and isoform 3 are the most abundant isoforms in non irradiated cells (at protein level). Ubiquitous at low levels. Highly expressed in testis, where it is expressed within the germinal epithelium of the seminiferous tubuli. Weakly expressed in seminomas (testicular tumors).
Sequence similaritiesBelongs to the rad17/RAD24 family.
Post-translational modificationsPhosphorylated. Phosphorylation on Ser-646 and Ser-656 is cell cycle-regulated, enhanced by genotoxic stress, and required for activation of checkpoint signaling. Phosphorylation is mediated by ATR upon UV or replication arrest, whereas it may be mediated both by ATR and ATM upon ionizing radiation. Phosphorylation on both sites is required for interaction with RAD1 but dispensable for interaction with RFC3 or RFC4.
Cellular localizationNucleus. Phosphorylated form redistributes to discrete nuclear foci upon DNA damage.
This Fast-Track antibody is not yet fully characterised. These images represent
inconclusive preliminary data.
ELISA - Rad17 (phospho S635) antibody (ab26335)
This antibody gave a positive result in ELISA against the immunizing peptide (ab28625). It gave a negative result in ELISA against the non-modified equivalent peptide (ab28626). This indicates that it is specific for the modified peptide.
References for Anti-Rad17 (phospho S646 + S656) antibody (ab26335)
has not yet been referenced specifically in any publications.
Publishing research using ab26335? Please let us know so that we can cite the reference in this datasheet.
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