The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Use a concentration of 0.1 - 1 µg/ml. Detects a band of approximately 55 kDa (predicted molecular weight: 56 kDa).Can be blocked with Human RNF8 peptide (ab23278).
E3 ubiquitin-protein ligase required for assembly of repair proteins to sites of DNA damage. Catalyzes the 'Lys-63'-linked ubiquitination of histone H2A and H2AX. Following DNA double-strand breaks (DSBs), it is recruited to the sites of damage by ATM-phosphorylated MDC1, mediates the ubiquitination of histones H2A and H2AX, thereby promoting the formation of TP53BP1 and BRCA1 ionizing radiation-induced foci (IRIF). Promotes the formation of 'Lys-63'-linked polyubiquitin chains and functions with the specific ubiquitin-conjugating UBE2N/UBC13. Substrates that are polyubiquitinated at 'Lys-63' are usually not targeted for degradation. Enforces the G2/M DNA damage checkpoint. Controls the recruitment of UIMC1-BRCC3 (RAP80-BRCC36) and PAXIP1/PTIP to DNA damage sites following DNA double-strand breaks (DSBs). Ubiquitination of histone H2A requires UBE2N but not MMS2 (UBE2V2). May also ubiquitinate histone H2B. Catalyzes the 'Lys-63'-linked ubiquitination of PCNA. May be required for proper exit from mitosis after spindle checkpoint activation and may regulate cytokinesis. May play a role in the regulation of RXRA-mediated transcriptional activity. Not involved in RXRA ubiquitination by UBE2E2.
Ubiquitous. In fetal tissues, highest expression in brain, thymus and liver. In adult tissues, highest levels in brain and testis, lowest levels in peripheral blood cells.
Protein modification; protein ubiquitination.
Belongs to the RNF8 family. Contains 1 FHA domain. Contains 1 RING-type zinc finger.
Low levels at the G1-S boundary increase in intensity during S phase and until the end of the G2 phase. Abruptly decreases in late mitosis (at protein level). Barely detectable in anaphase.
The FHA domain specifically recognizes and binds ATM-phosphorylated MDC1 and Thr-4827 phosphorylated HERC2.
Autoubiquitinated through 'Lys-48' and 'Lys-63' of ubiquitin. 'Lys-63' polyubiquitination is mediated by UBE2N. 'Lys-29'-type polyubiquitination is also observed, but it doesn't require its own functional RING-type zinc finger.
Nucleus. Midbody. Following DNA double-strand breaks, recruited to the sites of damage. During prophase, concomitant with nuclear envelope breakdown, localizes throughout the cell, with a dotted pattern. In telophase, again in the nucleus and also with a discrete dotted pattern in the cytoplasm. In late telophase and during cytokinesis, localizes in the midbody of the tubulin bridge joining the daughter cells. Does not seem to be associated with condensed chromosomes at any time during the cell cycle.
Ring finger protein 8, E3 ubiquitin protein ligase antibody
RNF 8 antibody
UBC13/UEV interacting ring finger protein antibody
Western blot - Anti-RNF8 antibody (ab15850)
Anti-RNF8 antibody (ab15850) at 0.1 µg/ml + Human placenta lysate at 35 µg
Predicted band size: 56 kDa
Immunocytochemistry/ Immunofluorescence - Anti-RNF8 antibody (ab15850)Image courtesy of Dr Andrew Cobb by Abreview.
ab15850 staining RNF8 in human U2OS cells by Immunocytochemistry/ Immunofluorescence. Cells were fixed in formaldehyde, permeabilized using NP40, blocked with 5% BSA fo 1 hour at 25°C and then incubated with ab15850 at a 1/100 dilution. The secondary used was an Alexa-Fluor 488 conjugated donkey anti-goat polyclonal used at a 1/500 dilution.