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PE anti-human HLA-DR Antibody

Pricing & Availability
Clone
LN3 (See other available formats)
Regulatory Status
RUO
Other Names
Major Histocompatibility Class II, MHC class II
Isotype
Mouse IgG2b, κ
Ave. Rating
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Product Citations
publications
LN-3_PE_011108
Human peripheral blood lymphocytes stained with LN-3 PE
  • LN-3_PE_011108
    Human peripheral blood lymphocytes stained with LN-3 PE
  • LN-3_PE_HLA-DR_Antibody_2_101024
    Multiplexed IHC staining of PE anti-HLA-DR (clone LN3) on formalin-fixed paraffin-embedded human tonsil tissue, validated for use on the Cellscape™. The tissue was iteratively stained with PE anti-HLA-DR (clone LN3, green) and Alexa Fluor® 488 anti-CD3 (red) for one hour at room temperature. Nuclei were counterstained with DAPI. Images were captured with a 20X objective. Scale bar: 50 µm
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327007 25 tests $122
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327008 100 tests $268
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Description

The LN3 monoclonal antibody reacts with the HLA-DR antigen, a member of MHC class II molecules. HLA-DR is a heterodimeric cell surface glycoprotein comprised of a 36 kD α (heavy) chain and a 27 kD β (light) chain. It is expressed on B cells, activated T cells, monocytes/macrophages, dendritic cells and other non-professional APCs. In conjunction with the CD3/TCR complex and CD4 molecules, HLA-DR is critical for efficient peptide presentation to CD4+ T cells.

Product Details
Technical data sheet

Product Details

Verified Reactivity
Human
Reported Reactivity
Rhesus
Antibody Type
Monoclonal
Host Species
Mouse
Immunogen
human PBL
Formulation
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and BSA (origin USA)
Preparation
The antibody was purified by affinity chromatography, and conjugated with PE under optimal conditions.
Concentration
Lot-specific (to obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.)
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
Application

FC - Quality tested
SB - Community Verified
Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is 5 µl per million cells in 100 µl staining volume or 5 µl per 100 µl of whole blood.

Excitation Laser
Blue Laser (488 nm)
Green Laser (532 nm)/Yellow-Green Laser (561 nm)
Application Notes

Additional reported applications (for the relevant formats) include: immunohistochemical staining1 of frozen sections and formalin-fixed paraffin-embedded sections1, and immunoprecipitation1.

Additional Product Notes

For the use of this antibody in spatial biology (SB), we have partnered with Bruker Spatial Biology Biosciences for demonstration of this antibody on their next-generation ChipCytometry instrument called the CellScape™. The CellScape platform is an end-to-end solution for highly multiplexed spatial omics. Combining an advanced, purpose-built imaging system with easy-to-use fluidics for walk-away automation, the CellScape system will accelerate your exploration into the rapidly evolving field of spatial biology. More information on the the Bruker Spatial Biology CellScape and a complete list of our antibodies that have been demonstrated on the instrument can be found here.

Application References

(PubMed link indicates BioLegend citation)
  1. Marder RJ, et al. 1985. Lab. Invest. 52:497.
  2. Norton AJ and Isaacson PG. 1987. Am. J. Pathol. 128:225.
  3. Hua ZX, et al. 1998. Hum. Pathol. 29(12):1441.
Product Citations
  1. Sakai T, et al. 2018. Sci Rep. 10687:8. PubMed
  2. Li H, et al. 2016. J Immunol. 196: 4064 - 4074. PubMed
  3. Sun Z, et al. 2022. Stem Cell Res Ther. 13:297. PubMed
  4. Mukhopadhyay M, et al. 2017. J Immunol. 10.4049/jimmunol.1700953. PubMed
  5. Leone D, et al. 2016. PLoS One. 11: 0151674. PubMed
RRID
AB_893579 (BioLegend Cat. No. 327007)
AB_893579 (BioLegend Cat. No. 327008)

Antigen Details

Structure
Ig superfamily, MHC class II, heterodimeric transmembrane protein
Distribution

B cells, activated T cells, monocytes/macrophages, dendritic cells, other APCs

Function
Peptide presentation
Ligand/Receptor
CD3/TCR, CD4
Cell Type
Antigen-presenting cells, B cells, Dendritic cells, Macrophages, Monocytes, T cells, Tregs
Biology Area
Immunology, Innate Immunity
Molecular Family
MHC Antigens
Antigen References

1. Levacher M, et al. 1990. Clin. Exp. Immunol. 81:177.
2. Terstappen L, et al. 1990. J. Leuk. Biol. 48:138.
3. Edwards J, et al. 1985. J. Immunol. 137:490.
4. van Es A, et al. 1984. Transplantation 37:65.
5. O'Doherty U, et al. 1994. Immunology 82:487.
6. Thomas R, et al. 1994. J. Immunol. 153:4016.
7. Grouard G, et al. 1996. Nature 384:364.

Gene ID
3122 View all products for this Gene ID 3123 View all products for this Gene ID
UniProt
View information about HLA-DR on UniProt.org

Related FAQs

What type of PE do you use in your conjugates?
We use R-PE in our conjugates.
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: 2    Revision Date: 10/10/2024

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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