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The recombinant human IgG4 Fc protein can be used as the isotype control of the hIgG4 antibodies and the hIgG4 Fc fusion proteins in in vitro and in vivo experiments. Conditions of optimal human IgG4 Fc Protein performance should be determined experimentally by the investigator.
Price/availability/specifications subject to change without notice. Unless otherwise indicated, our catalog and customized products are for research use only and not intended for human or animal diagnostic or therapeutic use.
Phone: 1-617-401-8149
Fax: 1-617-606-5019
Email: message@sydlabs.com
Or leave a message with a formal purchase
order (PO) Or credit card.
Background
Human IgG4 Fc is the tail region of the immunoglobulin G4 (IgG4) that interacts with cell surface receptors called Fc receptors and some proteins of the complement system. The ~230 amino acid fragment generally exists as a dimer, although under reducing conditions, it exists as a monomer. It is the basis of prolonged pharmacokinetics of antibodies and is commonly used as a fusion to extend half-life of fusion proteins. IgG4’s hinge is shorter than that of IgG1, its flexibility is intermediate between IgG1 and IgG2 and some rotation may occur around the glycine residue in its hinge region.
The recombinant human IgG4 Fc protein was produced in CHO cells and purified by protein A.
Purity: >95% by SDS-PAGE under reducing conditions
Endotoxin: Less than 1 EU/mg of protein as determined by LAL method.
Formulation: 0.2 µM filtered solution of 1x PBS.
Shipping: The in vivo grade recombinant human IgG4 Fc protein is shipped with ice pack. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
1 month from date of receipt, 2 to 8°C as supplied.
3 months from date of receipt, -20°C to -70°C as supplied.
For more references about human IgG4 fc protein please contact our scientific support team with message@sydlabs.com.
Other Recombinant IgG Fc Proteins:
In vivo Grade Recombinant Human IgG1 Fc Protein (hIgG1)
In vivo Grade Recombinant Human IgG2 Fc Protein (hIgG2)
In vivo Grade Recombinant Human IgG4 Fc Protein (hIgG4)
In vivo Grade Recombinant Mouse IgG1 Fc Protein (mIgG1)
In vivo Grade Recombinant Mouse IgG2a Fc Protein (mIgG2a)
In vivo Grade Recombinant Mouse IgG2b Fc Protein (mIgG2b)
In vivo Grade Recombinant Mouse IgG2c Fc Protein (mIgG2c)
In vivo Grade Recombinant Mouse IgG3 Fc Protein (mIgG3)
In vivo Grade Recombinant Rat IgG2a Fc Protein (rtIgG2a)
In vivo Grade Recombinant Rat IgG2b Fc Protein (rtIgG2b)
In vivo Grade Recombinant Llama IgG2b Fc Protein (lIgG2b)
In vivo Grade Recombinant Rabbit IgG Fc Protein (rIgG)
Recombinant IgG Reference Antibodies:
In vivo Grade Recombinant Human IgG1 Isotype Control Antibody and Mutants
In vivo Grade Recombinant Human IgG2 Isotype Control Antibody
In vivo Grade Recombinant Human IgG3 Isotype Control Antibody
In vivo Grade Recombinant Human IgG4-S228P Isotype Control Antibody and Mutants
In vivo Grade Recombinant Mouse IgG1 Isotype Control Antibody and Mutants
In vivo Grade Recombinant Mouse IgG2a Isotype Control Antibody and Mutants
In vivo Grade Recombinant Mouse IgG2b Isotype Control Antibody and Mutants
In vivo Grade Recombinant Mouse IgG2c Isotype Control Antibody and Mutants
In vivo Grade Recombinant Mouse IgG3 Isotype Control Antibody
In vivo Grade Recombinant Rat IgG1 Isotype Control Antibody
In vivo Grade Recombinant Rat IgG2a Isotype Control Antibody
In vivo Grade Recombinant Rat IgG2b Isotype Control Antibody
In vivo Grade Recombinant Rat IgG2c Isotype Control Antibody
Fc ELISA Kits and Reagents:
Human Fc ELISA Kit
Mouse Fc ELISA Kit
Human Fc ELISA Reagent Kit
Mouse Fc ELISA Reagent Kit
Protein A, Resin, Columns, and ELISA Kits:
Recombinant Protein A
Protein A Affinity Resin
Pre-packed Protein A Column
Protein A ELISA Kit
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