Anti-PD1 antibody [EPR4877(2)]
- BOND RX™ Validated
- 20ul selling size
- RabMAb
- Recombinant
- What is this?
5
(5 Reviews)
|
(138 Publications)
Anti-PD1 antibody [EPR4877(2)] (ab137132) is a rabbit monoclonal antibody detecting PD1 in IHC-P. Suitable for Human.
- Biophysical QC for unrivalled batch-batch consistency
- Over 100 publications
View Alternative Names
CD279, PD1, PDCD1, Programmed cell death protein 1, Protein PD-1, hPD-1
- IHC-P
AbReview80034****
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] (AB137132)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of formaldehyde fixed human tonsil staining with ab137132 at 1/500 dilution. Secondary antibody used was BOND Refine Detection. The sample was incubated with the primary antibody for 30 minutes. Antigen retrieval method was heat mediated BOND ER2
This image is courtesy of an anonymous Abreview
- IHC-P
PubMed
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] (AB137132)
Formalin-fixed paraffin-embedded early RA synovial biopsies were cut into 5 μM sections and mounted on Fisherbrand Superfrost Plus Slides. The sections were stained with anti-CD3 and anti-PD1 (ab137132, Abcam) antibodies. The markers were visualized with 3,3'-diaminobenzidine and the relative expression of each marker was noted. CD3 and PD1 staining was reported as CD3+% or PD1+% cells within a total magnification of 100x across the entire biopsy section.
Guo Y et al. Immune checkpoint inhibitor PD-1 pathway is down-regulated in synovium at various stages of rheumatoid arthritis disease progression. PLoS One 13:e0192704 (2018). Fig 4.
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] (AB137132)
Immunohistochemical analysis using ab137132 (unpurified) showing negative staining in human skeletal muscle tissue.
Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] (AB137132)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human tonsil tissue labeling PD1 with ab137132 at a dilution of 1/500. Heat mediated antigen retrieval was performed using EDTA antigen retrieval solution, and microwave treatment for 20 min at 20% power. Anti-Rabbit HRP polymer was used as secondary antibody. Opal tyramide amplification was performed using Opal 540 fluorophore. Counterstained with DAPI stain.
Image scanned with Vectra 3.0 and analyzed via Inform software.
This image was courteously provided by Dr. Houssein Abdul Sater, Georgia Cancer Center.
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] (AB137132)
Immunohistochemical analysis using ab137132 (unpurified version) showing negative staining in normal human brain tissue.
Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] (AB137132)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human tonsil tissue labeling PD1 with purified ab137132 at 1/500. Heat mediated antigen retrieval was performed using Tris/EDTA buffer pH 9. ab97051, an HRP-conjugated goat anti-rabbit IgG (H+L) was used as the secondary antibody (1/500).
Negative control : Secondary antibody only using PBS instead of primary antibody. Counterstained with hematoxylin.
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] (AB137132)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human tonsil tissue labeling PD1 with unpurified ab137132 at a dilution of 1/250.
Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
- IHC-P
Unknown
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] (AB137132)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human T-cell lymphoma tissue labeling PD1 with unpurified ab137132 at a dilution of 1/250.
Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
- IHC-P
Lab
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] (AB137132)
Tissue Microarrays stained for "Anti-PD1 antibody [EPR4877(2)]" using "ab137132"in immunohistochemical analysis. This table provides a detailed overview of positive (tick mark) and negative (cross mark) staining per sample type tested. The sections were pre-treated using Heat mediated antigen retrieval using Bond™ Epitope Retrieval Solution 2 (pH 9.0) for 20 minutes. The sections were incubated with ab137132 for 30 mins at room temperature followed by a ready to use Rabbit specific IHC polymer detection kit HRP/DAB (ab209101). The immunostaining was performed on a Leica Biosystems BOND® RX instrument.
Related conjugates and formulations (7)
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617 Alexa Fluor® 594
Alexa Fluor® 594 Anti-PD1 antibody [EPR4877(2)]
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665 Alexa Fluor® 647
Alexa Fluor® 647 Anti-PD1 antibody [EPR4877(2)]
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Anti-PD1 antibody [EPR4877(2)] - BSA and Azide free
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603 Alexa Fluor® 568
Alexa Fluor® 568 Anti-PD1 antibody [EPR4877(2)]
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565 Alexa Fluor® 555
Alexa Fluor® 555 Anti-PD1 antibody [EPR4877(2)]
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775 Alexa Fluor® 750
Alexa Fluor® 750 Anti-PD1 antibody [EPR4877(2)]
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519 Alexa Fluor® 488
Alexa Fluor® 488 Anti-PD1 antibody [EPR4877(2)]
Reactivity data
Product details
Anti-PD1 antibody [EPR4877(2)] (ab137132) was developed by Abcam using patented rabbit monoclonal antibody technology and is validated for use in IHC-P .
Anti-PD1 antibody [EPR4877(2)] (ab137132) was first used in a scientific publication in 2014 and has been cited over 101 times in peer reviewed journals. It's performance in IHC in human samples is trusted by the scientific community.
Abcam's high quality manufacturing and validation processes ensure Anti-PD1 antibody [EPR4877(2)] (ab137132) has high sensitivity and specificity alongside high lot-to-lot consistency and reproducibility.
Anti-PD1 antibody [EPR4877(2)] (ab137132) has 5 independent reviews from customers.
Anti-PD1 antibody [EPR4877(2)] (ab137132) specifically detects PD1 (UniProt ID: Q15116; Molecular weight: 29kDa) and is sold in a convenient trial size to enable initial testing (20 µL) and larger sizes for subsequent scaling up experiments (100 µL and 1 mL).
Conjugation-ready, carrier free format available for antibody clone EPR4877(2) - ab186928.
Antibody clone EPR4877(2) is also available pre-conjugated to a variety of labels for your convenience - Alexa Fluor® 647, Alexa Fluor® 555, Alexa Fluor® 594, Alexa Fluor® 488, Alexa Fluor® 568, Alexa Fluor® 750 (ab201825, ab275126, ab275349, ab311022, ab313074, ab321110).
PD-1 is an immune checkpoint receptor that, when engaged by its ligands PD-L1 or PD-L2, inhibits T-cell activity, allowing tumors to evade immune detection. Blocking the PD-1 pathway with immune checkpoint inhibitors reactivates T-cells, enhancing the immune system's ability to target and destroy cancer cells.
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.
Properties and storage information
Form
Purification technique
Storage buffer
Shipped at conditions
Appropriate short-term storage duration
Appropriate short-term storage conditions
Appropriate long-term storage conditions
Aliquoting information
Storage information
Supplementary information
This supplementary information is collated from multiple sources and compiled automatically.
Biological function summary
PD1 serves as an inhibitory receptor acting as a checkpoint in the immune system. It becomes part of an immune-suppressive complex when it binds with its ligands PD-L1 or PD-L2 which are expressed on various cell types including some tumor cells. This interaction suppresses the proliferation of T cells and cytokine production contributing to immune homeostasis. By controlling T cell activity PD1 limits autoimmunity but can also reduce the immune system's capability to attack cancer cells.
Pathways
PD1 functions in the immune checkpoint pathway a critical regulatory circuit in immune regulation. The engagement of PD1 with its ligands initiates a cascade that inhibits the function and proliferation of T cells through downstream SHP-2 phosphatase activity. This pathway frequently involves other regulatory proteins like CTLA-4 and is an important mechanism by which the body modulates immune responses. Related pathways often intersect with those involving T cell receptor signaling and contribute to the overall modulation of immune activity.
Product protocols
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Target data
Publications (138)
Recent publications for all applications. Explore the full list and refine your search
Nature 646:462-473 PubMed40836096
2025
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Cancer research and treatment : PubMed40808531
2025
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Nature 644:1058-1068 PubMed40659786
2025
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International journal of molecular sciences 26: PubMed40565313
2025
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Cancer immunology, immunotherapy : CII 74:230 PubMed40445404
2025
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Current oncology (Toronto, Ont.) 32: PubMed40422521
2025
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Clinical and translational medicine 15:e70310 PubMed40268516
2025
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Communications biology 8:621 PubMed40240529
2025
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Nature communications 16:2944 PubMed40140675
2025
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Cancer medicine 14:e70658 PubMed40062505
2025
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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