JAB1 Proteins

Protein Information

JAB-1 is a 38 kDa protein which was originally described as a coactivator for cJUN. It is present in a large protein complex called the "Signalosome", which has been proposed to play a signaling role in mammalian cells. This protein complex appears to be analogous to the COP9 complex in plants, which is important in light-mediated plant development. Although the specific function of JAB-1 in this complex is unclear, it has recently been implicated in targeting proteins for degradation by the proteasome.

Synonyms

38 kDa Mov34 homolog; AI303502; COP9 (constitutive photomorphogenic) homolog, subunit 5; COP9 (constitutive photomorphogenic) homolog, subunit 5 (Arabidopsis thaliana); COP9 complex S5; COP9 constitutive photomorphogenic homolog subunit 5; COP9 signalosome complex subunit 5; COP9 signalosome subunit 5; COPS5; Csn5; JAB1; Jun activation domain-binding protein 1; Jun coactivator; Kic2; Kip1 C-terminus-interacting protein 2; MGC3149; Mov34; MOV-34; Sgn5; signalosome subunit 5; testis secretory sperm-binding protein Li 231m