COP9 signalosome complex subunit 7b is a component of the COP9 signalosome complex (CSN), a complex involved in various cellular and developmental processes. The CSN complex is an essential regulator of the ubiquitin (Ubl) conjugation pathway by mediating the deneddylation of the cullin subunits of SCF-type E3 ligase complexes, leading to decrease the Ubl ligase activity of SCF-type complexes such as SCF, CSA or DDB2. The complex is also involved in phosphorylation of p53/TP53, JUN, I-kappa-B-alpha/NFKBIA, ITPK1 and IRF8/ICSBP, possibly via its association with CK2 and PKD kinases. CSN-dependent phosphorylation of TP53 and JUN promotes and protects degradation by the Ubl system, respectively.

Titration of the COPS7B antibody may be required due to differences in protocols and secondary/substrate sensitivity.

A portion of amino acids 223-257 from the human protein was used as the immunogen for the COPS7B antibody.

Aliquot the COPS7B antibody and store frozen at -20oC or colder.Avoid repeated freeze-thaw cycles.