Abcam, ab46322, Anti-RNF31/HOIP antibody

Size: 100µg
Knockout Tested Rabbit Polyclonal RNF31/HOIP antibody. Suitable for WB, ICC/IF and reacts with Human samples. Cited in 31 publications.
Key facts
Host species:Rabbit,
Clonality:Polyclonal,
Isotype:IgG,
Carrier free:No,
Reacts with:Human,
Applications:WB, ICC/IFSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:The exact immunogen used to generate this antibody is proprietary information.,
Specificity:Replenishment batches of ab46322 are tested in WB. Previous batches were additionally validated in ICC/IF. This application is still expected to work and is covered by our Abpromise guarantee.

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Immunogen, Storage buffer-pH: 7.4 Preservative: 0.02% Sodium azide Constituents: PBS, 1% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
RNF31 also known as HOIP (HOIL-1 Interacting Protein) is a large protein with a molecular weight of around 119 kDa. It is a part of the ubiquitin-proteasome system and functions mechanically as a E3 ubiquitin ligase. RNF31 forms the catalytic component of the Linear Ubiquitin Chain Assembly Complex (LUBAC). Expression of RNF31 occurs in many tissues with notable levels in immune cells and the testes. The protein features a RING-in-between-RING (RBR) motif structure that is critical for its ligase activity.
Biological function summary
RNF31/HOIP plays an important role in immune response regulation. It functions as part of the LUBAC complex alongside SHARPIN and RBCK1 (also known as HOIL-1L) which together catalyze the linear ubiquitination of substrates. These modifications regulate NF-kB signaling which is an important pathway involved in immune and inflammatory responses. RNF31's ubiquitin ligase activity adds linear ubiquitin chains to target proteins influencing their stability and function therefore impacting the immune cell function and survival.
Pathways
RNF31/HOIP integrates into the NF-kB and the apoptosis pathways. In the NF-kB pathway it acts as a regulator of cytokine production and cell survival. RNF31 achieves this through modification of NEMO (NF-kB essential modulator) an important protein in this pathway. In apoptosis regulation linear ubiquitination by RNF31 modulates the activity of proteins such as caspases preventing inappropriate cell death during immune responses. This helps to maintain balance between survival and death signals in cells allowing for proper immune function.
RNF31/HOIP has implications in inflammatory diseases and certain cancers. Dysregulation of LUBAC components including HOIP has been linked with chronic inflammatory conditions like rheumatoid arthritis where inappropriate NF-kB activation occurs. Furthermore aberrations in RNF31 activity have associations with tumorigenesis where its altered signaling pathways can lead to uncontrolled cell proliferation. In these contexts proteins such as A20 may interact with RNF31 affecting the regulation of NF-kB signaling therefore influencing disease progression.