Recombinant Human Interleukin-2 Cys125Ser
Recombinant Human Interleukin-2 Cys125Ser
Product Specifications
Source
Escherichia coli
Field of Research
Immunology & Inflammation
Endotoxin
Less than 1.0 EU/ug of rHuIL-2 Cys125Ser as determined by LAL method.
Purity
> 97 % by SDS-PAGE and HPLC analyses.
Bioactivity
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine CTLL-2 cells is less than 0.1 ng/ml, corresponding to a specific activity of > 1.0 x107 IU/mg.
Form
Lyophilized from a 0.2 mm filtered concentrated solution in 20 mM PB, pH 3.5, with 5 % Trehalose.
Molecular Weight
Approximately 15.5 kDa, a single non-glycosylated polypeptide chain containing 133 amino acids.
Storage Conditions
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.- 12 months from date of receipt, -20 to -70 °C as supplied.- 1 month, 2 to 8 °C under sterile conditions after reconstitution.- 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Notes
For research use only.
AA Sequence
MPTSSSTKKT QLQLEHLLLD LQMILNGINN YKNPKLTRML TFKFYMPKKA TELKHLQCLE EELKPLEEVL NLAQSKNFHL RPRDLISNIN VIVLELKGSE TTFMCEYADE TATIVEFLNR WITFSQSIIS TLT
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