Interleukin-21 Rat Recombinant produced in
Escherichia coli is a single, non-glycosilated polypeptide chain containing 129 amino acids and having a total molecular mass of 15.2 kDa. The Rat IL-21 is purified by proprietary chromatographic techniques.
Synonyms: Interleukin-21, IL-21, Il21.
Formulation: Rat IL-21 was lyophilized from a 0.2 µm filtered concentrated solution in PBS, pH 7.4.
Physical Appearance: Sterile Filtered White lyophilized (freeze-dried) powder.
Purity: Greater than 95% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
Solubility: It is recommended to reconstitute the lyophilized Rat IL21 in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Stability: Lyophilized Rat IL-21 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Rat IL21 should be stored at +4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Biological Activity: The biological activity is measured by its ability to proliferate activated B cells.
Source:Escherichia coli. Amino acid sequence: HKSSPQRPDH LLIRLRHLMD IVEQLKIYEN DLDPELLTAP QDVKGQCEHE AFACFQKAKL KPSNTGNNKT FINDLLAQLR RRLPAKRTGN KQRHMAKCPS CDLYEKKTPK EFLERLKWLL QKMIHQHLS.
Uniprot ACC#: A3QPB9
Transportation method: Shipped at Room temperature
Safety data sheet: Inquire at info@3hbiomedical.com