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Purified NA/LE Human BD Fc Block™ RUO

Purified NA/LE Human BD Fc Block™ 

  • Brand BD Pharmingen™
  • Concentration 1.0 mg/ml
  • Reactivity Human (QC Testing)  Rhesus (Tested in Development) 
  • Application Flow cytometry (Routinely Tested) 
  • Storage Buffer No azide/low endotoxin: Aqueous buffered solution containing no preservative, 0.2µm sterile filtered. Endotoxin level is ≤0.01 EU/µg (≤0.001 ng/µg) of protein as determined by the LAL assay.
  • Regulatory Status RUO
Product Details Recommended Assay References

Description

Fcγ Receptors belong to the immunoglobulin superfamily and are expressed at varying levels in multiple cell lineages including high expression in myeloid and B cells. The major functions of Fc receptors are protective functions of the immune system. There are multiple different types of Fc receptors reflecting a variety of different biological activities, which are modulated when they are aggregated by multivalent antigen-antibody complexes.

While normally serving important physiological roles in the immune system, Fc Receptors can also be the cause of nonspecific, false-positive antibody staining of cells. Human BD Fc Block™ is designed and formulated to block or significantly reduce potential non-specific antibody staining caused by receptors for IgG that may be encountered in various applications including the flow cytometric analysis of human cells. Moreover, it can increase the specificity of antibody labeling of extremely rare target cells such as antigen-specific B cells, fetal cells in maternal blood, hematopoietic progenitor cells, or disseminated epithelial tumor cells.

Format
  • Format NA/LE

Other Formats →

Suggested Companion Products

Stain Buffer (FBS) RUO
500 mL Cat No: 554656

Stain Buffer (BSA) RUO
500 mL Cat No: 554657

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Preparation and Storage

Store undiluted at 4°C. This preparation contains no preservatives, thus it should be handled under aseptic conditions.

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. Please refer to www.bdbiosciences.com/pharmingen/protocols for technical protocols.


For flow cytometry, incubate 1 million cells suspended in 50-100 µL of staining buffer with 2.5 µg of Human BD Fc Block™ (10 minutes at room temperature) followed by staining with the desired fluorescent antibody. No washing step is needed between the blocking and staining steps.


  1. Nimmerjahn F, Ravetch JV. Fc-receptors as regulators of immunity. Adv Immunol. 2007; 96:179-204. View reference

  2. Ravetch JV, Bolland S. IgG Fc receptors. Annu Rev Immunol. 2001; 19:275-290. View reference

564765 Rev. 2
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