>96% as determined by SDS-PAGE and HPLC.
Less than 1.0 EU/μg as determined by LAL method.
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human TF-1 cells is less than 1.0 ng/ml, corresponding to a specific activity of >1.0x106 IU/mg.
IL4Interleukin-4; IL-4; B-cell stimulatory factor 1; BSF-1; Lymphocyte stimulatory factor 1
Macaca mulatta (Rhesus macaque)
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Full Length of Mature Protein
Lyophilized from a 0.2 µm filtered 2 × PBS, pH 7.4, 5 % trehalose
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature
and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized
form is 12 months at -20°C/-80°C.
5-10 business days
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.