Recombinant Human CRBN-DDB1-CUL4A-RBX1 Complex Protein (Baculovirus)，Avi & His

The CRBN-DDB1-CUL4A-RBX1 complex, a pivotal component of the cullin-RING E3 ubiquitin ligase system, plays a crucial role in the regulation of protein degradation through the ubiquitin-proteasome pathway. This multi-subunit complex is essential for various cellular processes, including cell cycle regulation, DNA repair, and the response to oxidative stress. The CRBN (Cerberus and Docking protein 1) subunit is particularly important due to its role in substrate recognition and specificity, as it interacts with DDB1 (Damage-Specific DNA Binding Protein 1), which serves as a molecular scaffold, linking substrates to the cullin-RING E3 ligase machinery. CUL4A (Cullin 4A) functions as a scaffold protein, while RBX1 (RING-box protein 1) acts as the RING-type finger that recruits ubiquitin-conjugating enzymes to facilitate ubiquitination. Dysregulation of this complex has been implicated in various diseases, including cancer, making it a potential therapeutic target. Recent advancements in structural biology and biochemistry have provided insights into the molecular architecture and dynamics of the CRBN-DDB1-CUL4A-RBX1 complex, paving the way for the development of small-molecule inhibitors that could modulate its activity. Understanding the precise mechanisms by which this complex regulates protein turnover and signal transduction could reveal new strategies for treating diseases linked to the ubiquitin-proteasome pathway. The ongoing research in this realm aims to elucidate the complex's substrate specificity and the intricate signaling networks it governs, which is essential for developing efficient therapeutic interventions.