- Tel: 858.663.9055
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Email: info@nsjbio.com
- Tel: 858.663.9055
- Email: info@nsjbio.com
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RBCK1 antibody recognizes RanBP-type and C3HC4-type zinc finger-containing protein 1, an E3 ubiquitin-protein ligase involved in inflammation, innate immunity, and linear ubiquitin chain assembly. RBCK1 belongs to the HOIL-1 subfamily of RBR (RING-between-RING) E3 ligases and functions as part of the linear ubiquitin chain assembly complex (LUBAC) together with HOIP (RNF31) and SHARPIN. This complex is essential for NF-kappaB activation and regulation of immune responses. The RBCK1 antibody is widely used in immunology, cell signaling, and inflammation research to study ubiquitin-dependent regulatory mechanisms governing cell survival and immune homeostasis.
RBCK1 is encoded by the RBCK1 gene located on human chromosome 20q11.22. The protein contains several domains, including an N-terminal ubiquitin-like (UBL) domain, a RanBP-type zinc finger, a central RBR domain, and a C-terminal NZF-type zinc finger. These motifs enable RBCK1 to interact with ubiquitin, E2 conjugating enzymes, and adaptor proteins to assemble linear and lysine-63-linked ubiquitin chains. Through these modifications, RBCK1 promotes activation of NF-kappaB signaling and contributes to the regulation of cytokine production and cell survival following immune receptor stimulation.
The RBCK1 antibody is useful for detecting the 56-60 kilodalton protein by western blot and immunoprecipitation. In cells, RBCK1 localizes to the cytoplasm and occasionally to the nucleus, depending on signaling state. Functional studies have shown that deficiency or mutation of RBCK1 leads to defects in LUBAC function, resulting in impaired immune signaling, chronic inflammation, or autoinflammatory disorders such as polyglucosan body myopathy. Loss of RBCK1 function also compromises the stability of HOIP, reducing linear ubiquitination of NEMO and other substrates critical for inflammatory gene transcription.
Beyond immunity, RBCK1 participates in protein quality control through the degradation of misfolded cytosolic proteins. It contributes to the ubiquitin-proteasome system and has been implicated in muscle physiology and mitochondrial regulation. Recent studies suggest that RBCK1 also influences cellular metabolism and redox balance, linking ubiquitin signaling to broader physiological processes. NSJ Bioreagents provides a validated RBCK1 antibody optimized for western blot, immunofluorescence, and immunohistochemistry applications, enabling researchers to investigate the interplay between ubiquitin signaling, immune regulation, and inflammatory disease pathogenesis.
Optimal dilution of the RBCK1 antibody should be determined by the researcher.
E.coli-derived human RBCK1 recombinant protein (Position: M1-R446) was used as the immunogen for the RBCK1 antibody.
After reconstitution, the RBCK1 antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.
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