Anti-COPS7B antibodies are used in the immunodetection of the protein COP9 signalosome subunit 7B. In humans, the canonical protein has a reported length of 264 amino acid residues and a mass of 29.6 kDa. Its subcellular localization is in the nucleus and cytoplasm. Alternative splicing is reported to yield 3 different isoforms for this protein. A member of a the CSN7/EIF3M protein family, COPS7B is a known component of the COP9 signalosome complex (CSN), a complex involved in various cellular and developmental processes. Synonyms for this target antigen include COP9 constitutive photomorphogenic homolog subunit 7B, JAB1-containing signalosome subunit 7b, signalosome subunit 7b, and COP9 signalosome complex subunit 7b.