• Purity

  >95%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie® Blue stain

• Activity

  Recombinant Human NEDD8 can be conjugated to substrate proteins via the subsequent actions of a NEDD8-activating (E1) enzyme, a NEDD8-conjugating (E2) enzyme, and a NEDD8 ligase (E3). Reaction conditions will need to be optimized for each specific application. We recommend an initial Recombinant Human NEDD8 concentration of 10-50 μM.

• Source

  E. coli-derived

• Accession #

• Predicted Molecular Mass

  8.6 kDa

Background: NEDD8

Neural Precursor Cell Expressed Developmentally Downregulated Gene 8 (NEDD8), also known as Related to Ubiquitin 1 (Rub1), is a 6-8 kDa member of the Ubiquitin family of proteins. Human pro-NEDD8 is 81 amino acids (aa) in length. Pro-NEDD8 contains one Ubiquitin-like domain (aa 1-65) and a 4-5 aa C-terminal propeptide (1,2). Cleavage of the propeptide exposes a C-terminal glycine residue that is used to generate a glycine-lysine intermolecular bond. Mature human NEDD8 shows 100% aa identity to NEDD8 from mouse, rat, and canine. Human NEDD8 is activated by a distinct NEDD8-activating (E1) enzyme, a heterodimeric complex composed of APPBP1 and UBA3 subunits (3). Activated NEDD8 is subsequently transferred to the UBE2M/Ubc12 or UBE2F NEDD8-conjugating (E2) enzymes (4). Through a process termed neddylation, the ROC1/Rbx1 RING Finger E3 ligase transfers NEDD8 to specific substrates (5). For example, transfer of NEDD8 to the Cullin scaffold activates members of the Cullin-RING Ligase (CRL) family of Ubiquitin ligases (E3) (6-8). CRL-induced ubiquitination is known to regulate proteins that are important for cell cycle progression and cell survival (9,10). Physiologically, NEDD8 plays a critical regulatory role in cell proliferation and dysregulation of the NEDD8 pathway has been associated with several cancer pathologies (11,12).

• References:

1. 12. Soucy, T.A.      

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• Long Name:

  Neural Precursor Cell Expressed Developmentally Down-Regulated Protein 8

• Entrez Gene IDs:

  4738 (Human); 18002 (Mouse); 25490 (Rat)

• Alternate Names:

  FLJ43224; MGC104393; MGC125896; MGC125897; NEDD8; NEDD-8; Neddylin; Neural precursor cell expressed developmentally down-regulated protein 8; neural precursor cell expressed, developmentally down-regulated 8; Rub1; Ubiquitin-like protein Nedd8