Synonym
IL2; T-cell growth factor; TCGF; Aldesleukin
Source / expression
Recombinant Human IL-2 Protein is expressed from E.coli without tag.It contains Ala21-Thr153 [Accession | P60568].
Molecular weight
The protein has a predicted 15.5 kDa same as Bis-Tris PAGE result.
Endotoxin
Less than 0.01 EU per μg by the LAL method.
Purity
> 95% as determined by Bis-Tris PAGE
> 95% as determined by HPLC
Formulation
Lyophilized from 0.22μm filtered solution in 100mM Acetic Acid. Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution
Dissolve the lyophilized protein in 100mM Acetic Acid. Please refer to the Certificate of Analysis for detailed instructions.
Storage
-20 to -80°C for 12 months as supplied from date of receipt.
-80°C for 3 months after reconstitution.
Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
