MyBioSource.com's CRBN Antibody is a Rabbit Polyclonal antibody. This antibody has been shown to work in applications such as: Immunohistochemistry, and Western Blot. The CRBN Antibody was generated using cereblon, and CRBN as the antigen and it reacts with Human, Mouse, and Rat.
Description
Function: Substrate recognition component of a DCX (DDB1-CUL4-X-box) E3 protein ligase complex that mediates the ubiquitination and subsequent proteasomal degradation of target proteins, such as MEIS2. Normal degradation of key regulatory proteins is required for normal limb outgrowth and expression of the fibroblast growth factor FGF8. May play a role in memory and learning by regulating the assembly and neuronal surface expression of large-conductance calcium-activated potassium channels in brain regions involved in memory and learning via its interaction with KCNT1. Binding of pomalidomide and other thalidomide-related drugs changes the substrate specificity of the human protein, leading to decreased degradation of MEIS2 and other target proteins and increased degradation of MYC, IRF4, IKZF1 and IKZF3.
Subunit Structure: Interacts with KCNT1 (By similarity). Component of a DCX (DDB1-CUL4-X-box) protein ligase complex, at least composed of CRBN, CUL4A, DDB1 and RBX1. Interacts directly with DDB1 (PubMed:25043012, PubMed:25108355). Interacts (in pomalidomide-bound form) with IKZF1 and IKZF3 (PubMed:24328678).
Post-translational Modifications: Ubiquitinated, ubiquitination is mediated by its own DCX protein ligase complex.
Similarity: The CULT domain binds thalidomide and related drugs, such as pomalidomide and lenalidomide. Drug binding leads to a change in substrate specificity of the human DCX (DDB1-CUL4-X-box) E3 protein ligase complex, while no such change is observed in rodents. Belongs to the CRBN family