Bulk Human IgG4 Isotype Control (IB4) [ICH2257]

ichorbio’s bulk Human IgG4 Isotype Control (IB4) is manufactured in a cGMP compliant, ISO Quality Standard 9001:2015 facility. ichorbio’s low endotoxin antibodies have half the endotoxin of comparable antibodies from our competitors at less than 1.0 EU/mg.

n/a. We mutated the CDR regions of a human IgG4 antibody to abolish binding to human proteins

IB4

ichorbio’s recombinant human IgG4 in vivo antibody is available in the following bulk sizes: 5mg, 25mg, 50mg and 100mg. ichorbio regularly manufactures multi-gram amounts of our human IgG4 antibody – please contact us for pricing.

Human IgG4

HEK-293

Human

This Human IgG4 isotype control recombinant antibody has been tested against selected human cells and tissues to assure minimal cross reactivity.

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.

>5.0 mg/ml

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 4 weeks when stored at 2-8°C. For long term storage, aliquot in working volumes without diluting and store at – 20°C or -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.