Bulk Human IgG4 Isotype Control S228P (IB4)
ichorbio’s bulk Human IgG4 Isotype Control S228P (IB4) is manufactured in a cGMP compliant, ISO Quality Standard 9001:2015 facility.
ichorbio’s recombinant human IgG4 S228P isotype control is available in the following bulk sizes: 5mg, 25mg, 50mg and 100mg. ichorbio regularly manufactures multi-gram amounts of our human IgG4 S228P isotype control – please contact us for pricing.
This Human IgG4 isotype control recombinant antibody has been tested against selected species’ cells and tissues to assure minimal cross reactivity. This isotype control contains the S228P mutation.
This monoclonal antibody was purified using multi-step affinity chromatography methods such as Protein A or G depending on the species and isotype.
Recombinant IgG4 human antibody with S228P mutation.
This monoclonal antibody is aseptically packaged and formulated in 0.01 M phosphate buffered saline (PBS) pH 7.2 – 7.4, 150 mM NaCl with no carrier protein, potassium or preservatives added. BSA and azide free
>95% by SDS-PAGE and HPLC
>98% by SDS-PAGE and HPLC
≤ 1.0 EU/mg as determined by the LAL method
≤ 0.75 EU/mg as determined by the LAL method
Aggregation level ≤ 5%
Aggregation level ≤ 1%
This antibody is stable for at least one week when stored sterile at 2-8°C. For long term storage aseptically aliquot in working volumes without diluting and store at –80°C. Avoid Repeated Freeze Thaw Cycles.
Flow Cytometry, Functional Assays
Each investigator should determine their own optimal working dilution for specific applications.
Products are for research use only. Not for use in diagnostic or therapeutic procedures.