Description
Customer Notice Regarding Orders for Ubiquigent Products: From September 2020, orders for Ubiquigent products must total at least $700 to enable prompt delivery. Orders less than this amount may be subject to unpredictable wait times. Please contact us for further details.
Species Reactivity: Human
Source: E. coli expression
Formula: 50 mM HEPES pH 7.5, 150 mM sodium chloride, 2 mM dithiothreitol, 10% glycerol
Concentration: 1 mg/ml
Molecular Weight: ~13 kDa
Protein Sequence: Accession number: NP_008868. For full protein sequence information download the Certificate of Analysis pdf.
Quality Control Protein Identification: Confirmed by mass spectrometry.
Quality Control Activity: E2 Thioester SUMO-2 Loading Assay: The activity of His-SUMO-2 was validated by loading His-SUMO-2 onto the active cysteine of the UBE2I E2 enzyme via a transthiolation reaction. Incubation of His-SUMO-2, SAE1/SAE2 and UBE2I enzymes in the presence of ATP at 30 °C was compared at two time points, T0 and T10 minutes. Sensitivity of the His-SUMO-2/UBE2I thioester bond to the reducing agent DTT was confirmed.