Enabling Protein Degradation Drug Discovery

UBE2F (NCE2) [untagged]

 

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  • Name
    Catalogue Number
    Size
    Price
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  • Name:
    UBE2F (NCE2) [untagged]
    Catalogue Number:
    62-0025-100
    Size:
    100 µg
    Price:
    £325
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  • Species
    Human
  • Source
    E. coli expression
  • Quantity
    100 μg
  • Storage
    -70°C
  • Concentration
    1 mg/ml
  • Formulation
    50 mM HEPES pH 7.5, 150 mM sodium chloride, 2 mM dithiothreitol, 10% glycerol
  • Molecular Weight
    ~23 kDa
  • Stability
    12 months at -70°C; aliquot as required
  • Protein Sequence
    Accession number: NP_542409. For full protein sequence information download the Certificate of Analysis pdf.
  • QA; Protein Identification
    Confirmed by mass spectrometry.
  • QA; Activity
    E2-NEDD8 Thioester Loading Assay: The activity of UBE2F was validated by loading E1 (APP-BP1/Uba3) activated NEDD8 onto the active cysteine of the UBE2F E2 enzyme via a transthiolationreaction. Incubation of the APP-BP1/Uba3 and UBE2F enzymes in the presence of NEDD8 and ATP at 30°C was compared at two time points, T0 and T10 minutes. The sensitivity of the NEDD8/UBE2F thioester bond to the reducing agent DTT was confirmed.

     

The enzymes of the NEDDylation pathway play a pivotal role in a number of cellular processes including the indirect regulation and targeting of substrate proteins for proteasomal degradation. Three classes of enzymes are involved in the process of NEDDylation; the ubiquitin-like activating enzyme APP-BP1/Uba3 (E1), the ubiquitin-like conjugating enzymes (E2s) and protein ligases (E3s). UBE2F is a member of the E2 conjugating enzyme family and the human gene was first described by Huang et al. (2009). UBE2F acts as a NEDD8 conjugating enzyme both in vitro and in vivo. UBE2F accepts the ubiquitin-like protein NEDD8 from the Uba3-NAE1 (APP-BP1/Uba3) E1 complex and catalyzes its covalent attachment to other proteins. The specific interaction of UBE2F with the E3 ubiquitin ligase RBX2, but not RBX1, suggests that the RBX2-UBE2F complex NEDDylates specific target proteins such as CUL5, a component of one of the many Cullin Ring Ligases (CRLs) (Huang et al., 2009).

Reference:

Huang DT, Ayrault O, Hunt HW, Taherbhoy AM, Duda DM, Scott DC, Borg LA, Neale G, Murray PJ, Roussel MF, Schulman BA (2009) E2-RING expansion of the NEDD8 cascade confers specificity to cullin modification. Mol Cell 33, 483-95.