Recombinant Human Cell cycle checkpoint protein RAD17 (RAD17)

Uniprot Id

O75943

Target Species

Human

Target Name

RAD17

Target Full Name

Cell cycle checkpoint protein RAD17

Target Function

Essential 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 and RHNO1 onto chromatin, and in CHEK1 activation. May also serve as a sensor of DNA replication progression, and may be involved in homologous recombination.

Target Subcellular Location

Nucleus. Note=Phosphorylated form redistributes to discrete nuclear foci upon DNA damage.

Target Protein Families

Rad17/RAD24 family

Target Tissue Specificity

Overexpressed 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 expr

Target Synonyms

CCYC; Cell cycle checkpoint protein; Cell cycle checkpoint protein RAD17; FLJ41520; HRAD 17; hRad17; R24L; Rad 17; Rad 24; RAD1 (S. pombe) homolog; RAD1 homolog; RAD17; RAD17 homolog (S. pombe); RAD17 homolog; Rad17 like protein; RAD17; S. pombe; homolog of; RAD17_HUMAN; RAD17Sp; Rad24; Rad24; mouse; homolog of; Rad24; S. cerevisiae; homolog of; RF C activator 1 homolog; RF C/activator 1 homolog; RF-C/activator 1 homolog

Target Background

The protein encoded by this gene is highly similar to the gene product of Schizosaccharomyces pombe rad17, a cell cycle checkpoint gene required for cell cycle arrest and DNA damage repair in response to DNA damage. This protein shares strong similarity with DNA replication factor C (RFC), and can form a complex with RFCs. This protein binds to chromatin prior to DNA damage and is phosphorylated by the checkpoint kinase ATR following damage. This protein recruits the RAD1-RAD9-HUS1 checkpoint protein complex onto chromatin after DNA damage, which may be required for its phosphorylation. The phosphorylation of this protein is required for the DNA-damage-induced cell cycle G2 arrest, and is thought to be a critical early event during checkpoint signaling in DNA-damaged cells. Multiple alternatively spliced transcript variants of this gene, which encode four distinct protein isoforms, have been reported. Two pseudogenes, located on chromosomes 7 and 13, have been identified.