Recombinant canine interleukin-21 (IL-21) is a tag-free, lyophilized cytokine produced in E. coli representing residues H18-S146 (Accession Q6L7I9). Supplied as a 50 μg vial with >95% purity by reducing SDS-PAGE, it is intended for in vitro research and bioactivity assays. Predicted molecular mass is ~15 kDa and bioactivity is reported with an ED50 of 7.767 ng/mL in an NK-92 IFN-γ induction assay. Store lyophilized at -20°C and aliquot for long-term storage.
- Tag-free, recombinant canine IL-21 for species-relevant studies.
- Expressed in E. coli for efficient production.
- Represents residues H18-S146 of the native sequence.
- Purity greater than 95% by reducing SDS-PAGE.
- Supplied as a 50 μg lyophilized aliquot for convenience.
- Predicted molecular mass of ~15 kDa for gel identification.
- Bioactivity verified with ED50 7.767 ng/mL in NK-92 IFN-γ assay.
- Store at -20°C; aliquot and freeze at -80°C for extended stability.