Anti-LAG-3 antibody [EPR4392(2)] - BSA and Azide free
- RabMAb
- Recombinant
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(1 Publication)
Rabbit Recombinant Monoclonal LAG-3 antibody. Carrier free. Suitable for IHC-P and reacts with Human samples. Cited in 1 publication.
View Alternative Names
CD223, FDC, LAG3, Lymphocyte activation gene 3 protein, LAG-3
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-LAG-3 antibody [EPR4392(2)] - BSA and Azide free (AB209740)
Clone EPR4392(2) (ab209740) has been successfully conjugated by Abcam. This image was generated using Anti-LAG-3 antibody [EPR4392(2)] (Alexa Fluor® 647). Please refer to ab225278 for protocol details.
IHC image of LAG-3 staining in a section of formalin-fixed paraffin-embedded human Hodgkin's lymphoma*.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6) in a Biocare Medical NxGen pressure cooker using retrieval settings of 110oC for 20 minutes. Non-specific protein-protein interactions were then blocked in TBS containing 0.025% (v/v) Triton X-100, 0.3M (w/v) glycine and 1% (w/v) BSA for 1h at room temperature. The section was then incubated overnight at +4°C in TBS containing 0.025% (v/v) Triton X-100 and 1% (w/v) BSA with ab225278 at 1/100 dilution (shown in red) and counterstained using ab195887, Mouse monoclonal to alpha Tubulin (Alexa Fluor® 488), at 1/250 dilution (shown in green). Nuclear DNA was labelled with DAPI (shown in blue). The section was then mounted using Fluoromount®.
Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).
For other IHC staining systems (automated and non-automated), customers should optimize variable parameters such as antigen retrieval conditions, antibody concentrations and incubation times.
*Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre.
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-LAG-3 antibody [EPR4392(2)] - BSA and Azide free (AB209740)
Clone EPR4392(2) (ab209740) has been successfully conjugated by Abcam. This image was generated using Anti-LAG-3 antibody [EPR4392(2)] - C-terminal (Alexa Fluor® 488). Please refer to ab225277 for protocol details.
IHC image of LAG-3 - C-terminal staining in a section of formalin-fixed paraffin-embedded human Hodgkin's lymphoma*.
The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6) in a Biocare Medical NxGen pressure cooker using retrieval settings of 110oC for 20 minutes. Non-specific protein-protein interactions were then blocked in TBS containing 0.025% (v/v) Triton X-100, 0.3M (w/v) glycine and 1% (w/v) BSA for 1h at room temperature. The section was then incubated overnight at +4°C in TBS containing 0.025% (v/v) Triton X-100 and 1% (w/v) BSA with ab225277 at 1/250 dilution (shown in green) and counterstained using ab195884, Rat monoclonal to Tubulin (Alexa Fluor® 647), at 1/250 dilution (shown in red). Nuclear DNA was labelled with DAPI (shown in blue). The section was then mounted using Fluoromount®.
Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).
For other IHC staining systems (automated and non-automated), customers should optimize variable parameters such as antigen retrieval conditions, antibody concentrations and incubation times.
*Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre.
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-LAG-3 antibody [EPR4392(2)] - BSA and Azide free (AB209740)
Immunohistochemical analysis of paraffin embedded Human tonsil tissue labeling LAG-3 with ab180187 at 1/1000.
This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab180187).
Heat mediated antigen retrieval was performed before commencing with IHC staining protocol.
- IHC-P
Supplier Data
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-LAG-3 antibody [EPR4392(2)] - BSA and Azide free (AB209740)
This IHC data was generated using the same anti-LAG3 antibody clone, EPR4392(2), in a different buffer formulation (cat# ab180187).
Immunohistochemical analysis of paraffin embedded Human Hodgkins lymphoma tissue labeling LAG-3 with ab180187 at 1/1000.
Heat mediated antigen retrieval was performed before commencing with IHC staining protocol.
Related conjugates and formulations (9)
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Anti-LAG-3 antibody [EPR4392(2)] - C-terminal
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617 Alexa Fluor® 594
Alexa Fluor® 594 Anti-LAG-3 antibody [EPR4392(2)] – C–terminal
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565 Alexa Fluor® 555
Alexa Fluor® 555 Anti-LAG-3 antibody [EPR4392(2)] – C–terminal
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660 APC
APC Anti-LAG-3 antibody [EPR4392(2)] – C–terminal
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578 PE
PE Anti-LAG-3 antibody [EPR4392(2)] – C–terminal
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775 Alexa Fluor® 750
Alexa Fluor® 750 Anti-LAG-3 antibody [EPR4392(2)] - C-terminal
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519 Alexa Fluor® 488
Alexa Fluor® 488 Anti-LAG-3 antibody [EPR4392(2)] - C-terminal
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665 Alexa Fluor® 647
Alexa Fluor® 647 Anti-LAG-3 antibody [EPR4392(2)]
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Anti-LAG-3 antibody [EPR4392(2)] - Low endotoxin, Azide free
Reactivity data
Product details
ab209740 is the carrier-free version of ab180187.
Species reactivity
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species.
Please contact us for more information.
Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:
- - High batch-to-batch consistency and reproducibility
- - Improved sensitivity and specificity
- - Long-term security of supply
- - Animal-free batch production
For more information, read more on recombinant antibodies.
Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.
Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.
Compatibility
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.
Properties and storage information
Form
Purification technique
Storage buffer
Shipped at conditions
Appropriate short-term storage conditions
Appropriate long-term storage conditions
Storage information
Supplementary information
This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
LAG-3 is involved in maintaining immune homeostasis and preventing autoimmunity. It is not part of a complex but works in synergy with other immune checkpoint molecules. When interacting with MHC class II LAG-3 transmits inhibitory signals that attenuate immune cell responses. Its role in immune regulation helps to balance immune activation and tolerance which is essential for preventing tissue damage while protecting against pathogens.
Pathways
The inhibitory role of LAG-3 integrates into the T cell receptor (TCR) signaling pathway and is also linked to the PD-1 signaling pathway. In TCR signaling LAG-3 negatively regulates T cell activation. LAG-3 is functionally related to proteins like PD-1 and CTLA-4 sharing similar roles in immune checkpoint pathways that are critical for maintaining immune balance.
Product protocols
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Target data
Publications (1)
Recent publications for all applications. Explore the full list and refine your search
Arthritis research & therapy 27:173 PubMed40890810
2025
Applications
Unspecified application
Species
Unspecified reactive species
Product promise
Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.
For licensing inquiries, please contact partnerships@abcam.com