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TotalSeq™-Bn1337 anti-Granzyme B Antibody

Pricing & Availability
Clone
M3304B06 (See other available formats)
Regulatory Status
RUO
Other Names
Granzyme 2, cytotoxic T-lymphocyte-associated serine esterase 1, GZMB, CCP1, Asp-ase, CSPB, CTLA-1, CGL-1, CGL1
Isotype
Mouse IgG1, κ
Barcode Sequence
ACCAGTAGTGATGAA
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Product Citations
publications
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674605 10 µg £253
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Description

Granzyme B is a serine protease that is mainly produced by cytotoxic T cells (CTL) and NK cells. It plays important roles in cytotoxic lymphocyte-mediated apoptosis, chronic inflammation, and impaired wound healing. Granzyme B is packaged in cytoplasmic granules that are exocytosed towards a bound target cell, and subsequently activates multiple protein substrates to induce apoptosis. Perforin facilitates the transfer of Granzyme B into the target cell. Most circulating CD56+ CD8- NK cells and approximately half of circulating CD8+ T cells coexpress both Granzyme A and B. The activation of CD8+ and CD4+ T lymphocytes induces substantial expression of Granzyme B, but not Granzyme A. Recently, Granzyme B has been found to be produced by other cell types such as CD34+ hematopoietic progenitor cells, keratinocytes, basophils, mast cells, plasmacytoid dendritic cells, B cells, and smooth muscle cells. Elevated levels of Granzyme B are also found in some kinds of autoimmune diseases, type 1 diabetes, and cardiovascular diseases.

Product Details
Technical Data Sheet (pdf)

Product Details

Verified Reactivity
Human
Antibody Type
Monoclonal
Host Species
Mouse
Immunogen
Recombinant human Granzyme B produced in the 293E cell line.
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and EDTA
Preparation
The antibody was purified by chromatography and conjugated with TotalSeq™-Bn oligomer under optimal conditions.
Concentration
0.5 mg/mL
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. Do not freeze.
Application

SB - Quality tested
Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining in formalin-fixed, paraffin-embedded (FFPE) lymphoid tissue, and the oligomer sequence is confirmed by sequencing. TotalSeq™-Bn antibodies are compatible with the 10x Visium CytAssist Gene and Protein Expression Assay.

To maximize performance, it is strongly recommended that the reagent be titrated for each application, and that you centrifuge the antibody dilution at 14,000xg at 2 − 8°C for 10 minutes before use. Carefully pipette out the liquid avoiding the bottom of the tube when handling. To determine and optimize dilutions for the addition of Totalseq™-Bn antibodies into pre-designed antibody panels, refer to 10x Genomics Custom Add-on Antibody Optimization guide.


Buyer is solely responsible for determining whether Buyer has all intellectual property rights that are necessary for Buyer's intended uses of the BioLegend TotalSeq™ products. For example, for any technology platform Buyer uses with TotalSeq™, it is Buyer's sole responsibility to determine whether it has all necessary third party intellectual property rights to use that platform and TotalSeq™ with that platform.
Additional Product Notes

TotalSeq™-Bn reagents are designed to profile protein levels following an optimized protocol in spatial transcriptomics. Compatible spatial biology devices (e.g. Imaging System, 10x Genomics Visium Spatial CytAssist Gene and Protein Expression instruments and reagents) and sequencer (e.g. Illumina analyzers) are required. TotalSeq™-B reagents are not compatible with the 10x Genomics Visium system. The complete barcode sequence may be provided upon request. Please contact technical support for more information, or visit TotalSeq™-Bn Reagents for 10x Genomics Visium CytAssist Gene and Protein Assay.

Antigen Details

Structure
247 amino acids with a molecular weight of approximately 28 kD
Distribution

Cytotoxic T cells, NK cells, and neutrophils.

Function
Granzyme B is able to induce target cell apoptosis by activating caspase independent pathways. Granzyme B is induced in CD8+ T lymphocytes with ConA / IL-2 and CD4+ T lymphocytes with anti-CD3/CD28 or anti-CD3/CD46.
Interaction
Targets of CTL and NK cells.
Cell Type
B cells, Dendritic cells, Neutrophils, NK cells, T cells
Biology Area
Apoptosis/Tumor Suppressors/Cell Death, Cell Biology, Cell Cycle/DNA Replication, Immunology, Innate Immunity, Neuroscience, Signal Transduction
Molecular Family
Enzymes and Regulators, Proteases
Antigen References

1. Edwards KM, et al. 1999. J. Biol. Chem. 274:30468.
2. Grossman WJ, et al. 2004. Blood 104:2840.
3. Heusel JW, et al. 1994. Cell 76:977.
4. Schmid J and Weissmann C. 1987. J. Immunol. 139:250.
5. Trapani JA, et al. 1988. Proc. Natl. Acad. Sci. USA 85:6924.
6. Hiebert PR and Granville DJ. 2012. Trends Mol. Med. 18:732.
7. Saito Y, et al. 2011. J. Cardiol. 57:141.
8. Ewen CL, et al. 2012. Cell Death Differ. 1:28.

Gene ID
3002 View all products for this Gene ID
UniProt
View information about Granzyme B on UniProt.org

Related FAQs

If an antibody clone has been previously successfully used in IBEX in one fluorescent format, will other antibody formats work as well?

It’s likely that other fluorophore conjugates to the same antibody clone will also be compatible with IBEX using the same sample fixation procedure. Ultimately a directly conjugated antibody’s utility in fluorescent imaging and IBEX may be specific to the sample and microscope being used in the experiment. Some antibody clone conjugates may perform better than others due to performance differences in non-specific binding, fluorophore brightness, and other biochemical properties unique to that conjugate.

Will antibodies my lab is already using for fluorescent or chromogenic IHC work in IBEX?

Fundamentally, IBEX as a technique that works much in the same way as single antibody panels or single marker IF/IHC. If you’re already successfully using an antibody clone on a sample of interest, it is likely that clone will have utility in IBEX. It is expected some optimization and testing of different antibody fluorophore conjugates will be required to find a suitable format; however, legacy microscopy techniques like chromogenic IHC on fixed or frozen tissue is an excellent place to start looking for useful antibodies.

Are other fluorophores compatible with IBEX?

Over 18 fluorescent formats have been screened for use in IBEX, however, it is likely that other fluorophores are able to be rapidly bleached in IBEX. If a fluorophore format is already suitable for your imaging platform it can be tested for compatibility in IBEX.

The same antibody works in one tissue type but not another. What is happening?

Differences in tissue properties may impact both the ability of an antibody to bind its target specifically and impact the ability of a specific fluorophore conjugate to overcome the background fluorescent signal in a given tissue. Secondary stains, as well as testing multiple fluorescent conjugates of the same clone, may help to troubleshoot challenging targets or tissues. Using a reference control tissue may also give confidence in the specificity of your staining.

How can I be sure the staining I’m seeing in my tissue is real?

In general, best practices for validating an antibody in traditional chromogenic or fluorescent IHC are applicable to IBEX. Please reference the Nature Methods review on antibody based multiplexed imaging for resources on validating antibodies for IBEX.

Go To Top Version: 1    Revision Date: 12/22/2023

For Research Use Only. Not for diagnostic or therapeutic use.

 

This product is supplied subject to the terms and conditions, including the limited license, located at www.biolegend.com/terms) ("Terms") and may be used only as provided in the Terms. Without limiting the foregoing, BioLegend products may not be used for any Commercial Purpose as defined in the Terms, resold in any form, used in manufacturing, or reverse engineered, sequenced, or otherwise studied or used to learn its design or composition without express written approval of BioLegend. Regardless of the information given in this document, user is solely responsible for determining any license requirements necessary for user’s intended use and assumes all risk and liability arising from use of the product. BioLegend is not responsible for patent infringement or any other risks or liabilities whatsoever resulting from the use of its products.

 

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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
If you need assistance with selecting the best format contact our expert technical support team.

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