EEF1B2 Protein, Human, Recombinant (His Tag)

EF1B, also known as EEF1B2, is a translation elongation factor. It belongs to the EF-1-beta/EF-1-delta family. Elongation factors are a set of proteins that are used in protein synthesis in the cell. In the ribosome, they facilitate translational elongation, from the formation of the first peptide bond to the formation of the last one. EF1B is more complex in eukaryotes than in bacteria, and consists of three subunits: EF1B-alpha, EF1B-gamma and EF1B-beta. EF1B contains 1 GST C-terminal domain. It is involved in the transfer of aminoacylated tRNAs to the ribosome. EF1B is required to regenerate EF1A from its inactive form (EF1A-GDP) to its active form (EF1A-GTP) . EF1A is then ready to interact with a new aminoacyl-tRNA to begin the cycle again.

At Leading Biology, the biological activity of a recombinant protein is routinely measured using a bioassay, e.g. chemotaxis or cell proliferation assay, enzyme assay, or a functional ELISA. When a recombinant protein is an enzyme, specific activity is derived from an enzymatic assay. Each enzyme is tested for potency by cleavage of a substrate. We are in the process of updating the biological activity data. If you have any questions regarding this update, please feel free to contact our technical support team.

Lyophilized from sterile 50mM Tris, 100mM NaCl, 10% Glycerol, 1mM DTT, pH 8.0. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.

The recombinant human EEF1B2 consists of 240 amino acids and predicts a molecular mass of 26.6 KDa. It migrates as an approximately 30 KDa band in SDS-PAGE under reducing conditions.

In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. Stable for 1 year at -20°C or below from date of shipment. For maximum recovery of product, centrifuge the original vial after thawing and opening the cap. For long-term storage, aliquot and store at -20°C or below. Avoid repeated freeze-thaw cycles.