Anti-RNF168 antibody

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.

Activity summary

RNF168 also known as Ring Finger Protein 168 is an E3 ubiquitin ligase with a molecular mass of approximately 63 kDa. It functions primarily in the DNA damage response by adding ubiquitin to histones at sites of double-strand breaks. RNF168 is expressed in various tissues but is notably active in cells that experience DNA damage. This protein structure contains a RING finger domain which facilitates its role in ubiquitination.

Biological function summary

The actions of RNF168 are critical in maintaining genome stability and it serves as a part of the DNA damage signaling complex. It collaborates with other proteins in recognizing DNA damage and signaling repair processes. RNF168 amplifies the ubiquitin signal which then attracts repair proteins to the site of damage. This function places it as an important component in the cellular response to DNA breaks.

Pathways

RNF168 is an important player in the DNA damage response pathway and is particularly associated with the homologous recombination repair mechanism. It works alongside proteins such as 53BP1 and BRCA1 to initiate repair processes. RNF168’s ubiquitination activity facilitates the recruitment of these repair proteins coordinating the cellular response to DNA lesions and ensuring effective repair.

Associated diseases and disorders

RNF168 mutations or malfunctions have been linked to conditions like RIDDLE syndrome and certain cancers. In RIDDLE syndrome deficiencies in RNF168 disrupt the normal DNA repair processes leading to immunodeficiency radiosensitivity and learning difficulties. Cancer arises when the impaired DNA damage response fails to prevent mutations. Understanding RNF168 interactions particularly with proteins like 53BP1 and BRCA1 is essential for developing therapeutic strategies for these conditions.