- Molecular aliases
- Interleukin-21; IL-21; Za11; CVID11;IL21;IL 21; Interleukin 21
- Protein length
- His18-Ser146
- Expression system
- E. coli
- Molecular weight
- The protein has a predicted MW of 17.9 kDa same as Bis-Tris PAGE result.
- Purity
- > 95% as determined by Bis-Tris PAGE
- Endotoxin
- Less than 1 EU per μg by the LAL method.
- Formulation
- Lyophilized from 0.22 μm filtered solution in 20mM NaAc, 150mM NaCl (pH 5.5). Normally 8% trehalose is added as protectant before lyophilization.
- State
- Lyophilized
- 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.
- Reconstitution
- Dissolve the lyophilized protein in 20mM NaAc (pH 5.5). Please refer to the Certificate of Analysis for detailed instructions.
