Invitrogen™ Mouse IgG2b kappa Isotype Control (eBMG2b), PE, eBioscience™, Invitrogen™

Catalog No.	Quantity
50-186-61	50 μg
50-186-62	100 μg
50-112-8818	100 Tests

Catalog No. 50-186-61 Supplier Invitrogen™ Supplier No. 12473281

Description

Mouse Isotype Control

Description: The monoclonal mouse IgG2b, kappa is useful as an isotype control immunoglobulin. Applications Reported: This mouse IgG2b isotype control has been reported for use in flow cytometric analysis. Applications Tested: This Mouse IgG2b K Isotype Control is offered in 2 formats: - μg size: has been tested by flow cytometric analysis of normal human peripheral blood cells and can be used at the same concentration as the experimental antibody. - test size: has been pre-titrated and tested by flow cytometric analysis of normal human peripheral blood cells. This can be used at test size: 5 μL (1 μg) per test. A test is defined as the amount (μg) of antibody that will stain a cell sample in a final volume of 100 μL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. Excitation: 488-561 nm; Emission: 578 nm; Laser: Blue Laser, Green Laser, Yellow-Green Laser. Filtration: 0.2 μm post-manufacturing filtered.

Mouse IgG2b is a subtype of immunoglobulin G antibody that is produced by B cells in response to an antigen. It is the third most abundant IgG subtype in the serum and plays a crucial role in the adaptive immune response. Mouse IgG2b is composed of two heavy chains and two light chains, and it is involved in opsonization, complement activation, and antibody-dependent cell-mediated cytotoxicity. It is also involved in the regulation of immune responses, including the activation of T cells and the inhibition of B cell activation. Mouse IgG2b is widely used in research and diagnostic applications, including ELISA, Western blotting, and immunohistochemistry. It is also used in therapeutic applications, such as immunotherapy and vaccine development.

Specifications

• Antigen: Mouse IgG2b kappa
• Applications: Control, Flow Cytometry
• Classification: Monoclonal
• Clone: eBMG2b
• Concentration: 0.2 mg/mL
• Conjugate: PE
• Formulation: PBS with 0.09% sodium azide; pH 7.2
• Gene Alias: IgG2; Immunoglobulin G; Immunoglobulin G2; ImmunoglobulinG; ImmunoglobulinG2
• Host Species: Mouse
• Purification Method: Affinity chromatography
• Quantity: 50 μg
• Regulatory Status: RUO
• Primary or Secondary: Isotype Control (Primary)
• Target Species: Not Applicable
• Content And Storage: 4°C, store in dark, DO NOT FREEZE!
• Product Type: Isotype Control
• Form: Liquid
• Isotype: IgG2b κ

Frequently Asked Questions (FAQs)

Is an isotype control a must for flow cytometry analysis?

No. Many users are using unstained cells in combination with FMO controls to identify their positive populations.

What if I can't find the right isotype control for flow cytomtery?

The flow cytometry field is moving away from using isotype controls as they are not necessarily the most appropriate way to control for non-specific binding. Instead, they are using unstained cells to define the negative population, single stained controls to set compensation, and flow minus one (FMO) controls to set regions and gates.

You may want to consider whether using an isotype control is something you need to do. Here are some references you might want to look at:
-O'Gorman MR, Thomas J. (1999) Isotype controls-time to let go? Cytometry 38:78-80.

-Keeney M, Gratama JW, Chin-Yee IH et al. (1998) Isotype controls in the analysis of lymphocytes and CD34+ stem/progenitor cells by flow cytometry- time to let go! Cytometry 34:280-283.

-Hulspas R, O'Gorman MR, Wood BL et al. (2009) Considerations for the control of background fluorescence in clinical flow cytometry. Cytometry B Clin Cytom 76:355–364.

-Enumeration of Immunologically Defined Cell Populations by Flow Cytometry; Approved Guideline - Second Edition. Clinical and Laboratory Standards Institute, (CLSI). Document H42-A2 Volume 27 No.16, 2007.

-Clinical Flow Cytometric Analysis of Neoplastic Hematolymphoid Cells; Approved Guideline - Second Edition. Clinical and Laboratory Standards Institute, (CLSI). Document H43-A2 Volume 27 No. 11, 2007.

If you do wish to use isotype controls, we offer a wide variety of species and fluorophores, search our Web site under "isotype antibody control."

For Research Use Only.