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You are here:Home » Molecular Biology » MB-Peptides » Interleukin 2, Recombinant, Human (IL-2, T-Cell Growth Factor)

Interleukin 2, Recombinant, Human (IL-2, T-Cell Growth Factor)

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Specifications

Recombinant human IL-2 produced in E. coli is a single, non-glycosylated mutein (variant form) of human IL-2 polypeptide chain containing 134 amino acids and having a molecular mass of 15517 Dalton. rHuIL-2 has an Ser substitute for Cysteine at position 126.
Catalog #I7663-29L
Endotoxin <0.01ng/ug or <0.1EU/ug as per LAL
Biological Activity rHuIL-2 is fully biologically active when compared to standard. The ED50 as determined by the dose-dependent stimulation of murine CTLL-2 cells is less then 0.0645ng/ml, corresponding to a Specific Activity of 16.9MIU/mg.
AA SequenceMAPTSSSTKK TQLQLEHLLL DLQMILNGIN NYKNPKLTRM LTFKFYMPKK ATELKHLQCL EEELKPLEEV LNLAQSKNFH LRPRDLISNI NVIVLELKGS ETTFMCEYAD ETATIVEFLN RWITFSQSII STLT
Storage and StabilityLyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile ddH2O, aliquot and store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Molecular Weight15.6kD
SourceRecombinant, human, E. coli
Purity90% as determined by reducing and non-reducing SDS-PAGE.
FormSupplied as a lyophilized powder. Reconstitute with sterile dH2O PBS to 0.1-1mg/ml, which can be further diluted into other aqueous solutions.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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