JavaScript is disabled in your browser. Please enable JavaScript to view this website.
AB227681

Anti-PD1 antibody [SP269]

Be the first to review this product! Submit a review

|

(3 Publications)

Rabbit Recombinant Monoclonal PD1 antibody. Suitable for Flow Cyt (Intra), IHC-P and reacts with Human samples. Cited in 3 publications.

View Alternative Names

CD279, PD1, PDCD1, Programmed cell death protein 1, Protein PD-1, hPD-1

2 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [SP269] (AB227681)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [SP269] (AB227681)

Formalin-fixed, paraffin-embedded human tonsil tissue stained for PD1 using ab227681 at 1/100 dilution in immunohistochemical analysis.

Flow Cytometry (Intracellular) - Anti-PD1 antibody [SP269] (AB227681)
  • Flow Cyt (Intra)

Supplier Data

Flow Cytometry (Intracellular) - Anti-PD1 antibody [SP269] (AB227681)

Flow cytometric analysis of THP-1 (human monocytic leukemia cell line) cell line labeling PD1 with ab227681 at 1/400 dilution (green) compared with a Rabbit IgG negative control (blue).

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

SP269

Isotype

IgG

Carrier free

No

Reacts with

Human

Applications

IHC-P, Flow Cyt (Intra)

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

style
left-column

Alternative Products

Primary Antibodies

AB183641

Anti-PD1 antibody

Western blot - Anti-PD1 antibody (AB183641)

  • 0
  • 0
Primary Antibodies

AB201825

Alexa Fluor® 647 Anti-PD1 antibody [EPR4877(2)]

RabMAb|Recombinant

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Alexa Fluor® 647 Anti-PD1 antibody [EPR4877(2)] (AB201825)

  • 5
  • 1
Primary Antibodies

AB214421

Anti-PD1 antibody [EPR20665]

20ul selling size|RabMAb|Recombinant

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR20665] (AB214421)

  • 4
  • 3
Primary Antibodies

AB251612

Anti-PD1 antibody [CAL15] - BSA and Azide free

BOND RX™ Validated|RabMAb|Recombinant

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [CAL15] - BSA and Azide free (AB251612)

  • 0
  • 0
Primary Antibodies

AB237727

Anti-PD1 antibody [CAL15]

BOND RX™ Validated|20ul selling size|RabMAb|Recombinant

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [CAL15] (AB237727)

  • 0
  • 0
Primary Antibodies

AB228857

Anti-PD1 antibody [EPR20665] - BSA and Azide free

RabMAb|Recombinant

Immunocytochemistry/ Immunofluorescence - Anti-PD1 antibody [EPR20665] - BSA and Azide free (AB228857)

  • 4
  • 2
Primary Antibodies

AB186928

Anti-PD1 antibody [EPR4877(2)] - BSA and Azide free

BOND RX™ Validated|RabMAb|Recombinant

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] - BSA and Azide free (AB186928)

  • 1
  • 1
Primary Antibodies

AB92484

Anti-PD1 antibody

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody (AB92484)

  • 0
  • 1
Primary Antibodies

AB237728

Anti-PD1 antibody [CAL20]

BOND RX™ Validated|20ul selling size|RabMAb|Advanced Validation|Recombinant

Immunocytochemistry/ Immunofluorescence - Anti-PD1 antibody [CAL20] (AB237728)

  • 5
  • 1
Primary Antibodies

AB137132

Anti-PD1 antibody [EPR4877(2)]

BOND RX™ Validated|20ul selling size|RabMAb|Recombinant

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD1 antibody [EPR4877(2)] (AB137132)

  • 5
  • 5
Primary Antibodies

AB206378

Anti-PD1 (phospho Y248) antibody [EPR19821]

20ul selling size|RabMAb|Recombinant|Trial Size

Immunoprecipitation - Anti-PD1 (phospho Y248) antibody [EPR19821] (AB206378)

  • 0
  • 0
Primary Antibodies

AB251613

Anti-PD1 antibody [CAL20] - BSA and Azide free

BOND RX™ Validated|RabMAb|Advanced Validation|Recombinant

Immunocytochemistry/ Immunofluorescence - Anti-PD1 antibody [CAL20] - BSA and Azide free (AB251613)

  • 5
  • 1
Primary Antibodies

AB234960

Anti-PD1 (phospho Y248) antibody [EPR19821] - BSA and Azide free

RabMAb|Recombinant

Immunoprecipitation - Anti-PD1 (phospho Y248) antibody [EPR19821] - BSA and Azide free (AB234960)

  • 0
  • 0

Complementary Products

Assay Kits

AB252360

Human PD-1 ELISA Kit

Recombinant|SimpleStep

ELISA - Human PD-1 ELISA Kit (AB252360)

  • 0
  • 0
Primary Antibodies

AB205921

Anti-PD-L1 antibody [28-8]

BOND RX™ Validated|20ul selling size|Recombinant|KO Validated|Advanced Validation|RabMAb

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD-L1 antibody [28-8] (AB205921)

  • 4
  • 15
Primary Antibodies

AB133616

Anti-CD4 antibody [EPR6855]

BOND RX™ Validated|RabMAb|Recombinant|Lab Essentials|20ul selling size|Advanced Validation

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD4 antibody [EPR6855] (AB133616)

  • 5
  • 20
Primary Antibodies

AB20034

Anti-FOXP3 antibody [236A/E7]

BOND RX™ Validated|Recombinant|Lab Essentials|Advanced Validation

Multiplex immunohistochemistry - Anti-FOXP3 antibody [236A/E7] (AB20034)

  • 4
  • 38
Primary Antibodies

AB237709

Anti-CD8 alpha antibody [CAL66]

BOND RX™ Validated|20ul selling size|RabMAb|Advanced Validation|Recombinant

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CD8 alpha antibody [CAL66] (AB237709)

  • 5
  • 2
style
left-column

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "FlowCytIntra" : {"fullname" : "Flow Cytometry (Intracellular)", "shortname":"Flow Cyt (Intra)"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "FlowCytIntra-species-checked": "testedAndGuaranteed", "FlowCytIntra-species-dilution-info": "1/400", "FlowCytIntra-species-notes": "<p>Primary incubation for 30 minutes at 4°C.</p>", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/100", "IHCP-species-notes": "<p>Perform heat mediated antigen retrieval with EDTA buffer pH 8.0 before commencing with IHC staining protocol.</p><p>Primary incubation for 30 minutes at room temperature.</p>" } } }
style
left-column
style
left-column

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A/G
Purification notes
Purified from TCS by protein A/G.
Storage buffer
pH: 7.6 Preservative: 0.1% Sodium azide Constituents: PBS, 1% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
style
left-column

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

PD1 also known as Programmed Cell Death Protein 1 or PDCD1 is a transmembrane protein that plays a critical role in regulating immune responses. It has a mass of approximately 55 kDa. PD1 is expressed on the surface of T cells B cells and some myeloid cells. PD1’s expression increases upon activation of these immune cells assisting in maintaining peripheral tolerance. Researchers often use PD1 mouse models and chimeric antibodies to explore the function of PD1 for experimental purposes. Antibodies such as anti-PD1 such as EH12.2H7 help in blocking PD1 interaction to study its role further.
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.

PD1 has a significant role in cancer and autoimmune disorders. PD1 expression can allow tumors to evade immune surveillance making PD1 a target for cancer therapies such as anti-PD1 antibodies which aim to block PD1 and restore T cell activity. The interaction of PD1 with cancer-related proteins like PD-L1 facilitates tumor immune evasion. In autoimmune disorders PD1’s regulation of immune balance can become dysregulated leading to persistent immune activation and tissue damage. Understanding PD1 and its interaction with proteins such as PD-L1 helps in developing therapeutic strategies for both cancer and autoimmune conditions.
style
left-column
style
left-column

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:
style
left-column

Target data

Inhibitory receptor on antigen activated T-cells that plays a critical role in induction and maintenance of immune tolerance to self (PubMed : 21276005, PubMed : 31754127, PubMed : 32184441, PubMed : 37208329). Delivers inhibitory signals upon binding to ligands CD274/PDCD1L1 and CD273/PDCD1LG2 (PubMed : 21276005, PubMed : 26602187). Following T-cell receptor (TCR) engagement, PDCD1 associates with TCR-CD3 in the immunological synapse and directly inhibits T-cell activation (PubMed : 32184441). Suppresses T-cell activation through the recruitment of PTPN11/SHP-2 : following ligand-binding, PDCD1 is phosphorylated within the ITSM motif, leading to the recruitment of the protein tyrosine phosphatase PTPN11/SHP-2 that mediates dephosphorylation of key TCR proximal signaling molecules, such as ZAP70, PRKCQ/PKCtheta and CD247/CD3zeta (PubMed : 32184441).. The PDCD1-mediated inhibitory pathway is exploited by tumors to attenuate anti-tumor immunity and escape destruction by the immune system, thereby facilitating tumor survival (PubMed : 28951311). The interaction with CD274/PDCD1L1 inhibits cytotoxic T lymphocytes (CTLs) effector function (PubMed : 28951311). The blockage of the PDCD1-mediated pathway results in the reversal of the exhausted T-cell phenotype and the normalization of the anti-tumor response, providing a rationale for cancer immunotherapy (PubMed : 22658127, PubMed : 25034862, PubMed : 25399552).
See full target information PDCD1
style
left-column

Publications (3)

Recent publications for all applications. Explore the full list and refine your search

Oncology letters 18:545-552 PubMed31289526

2019

Lymphoepithelioma-like gastric carcinoma treated with partial gastrectomy: Two case reports.

Applications

Unspecified application

Species

Unspecified reactive species

Huihua Cao,Jun Xie,Yongxiang Qian,Yugang Wu,Zhaoqing Tang

Journal of hematology & oncology 11:16 PubMed29409495

2018

PD-1 axis expression in musculoskeletal tumors and antitumor effect of nivolumab in osteosarcoma model of humanized mouse.

Applications

Unspecified application

Species

Unspecified reactive species

Bingxin Zheng,Tingting Ren,Yi Huang,Kunkun Sun,Shidong Wang,Xing Bao,Kuisheng Liu,Wei Guo

Cancer science 108:1452-1457 PubMed28498618

2017

Phase I clinical trial of cell division associated 1 (CDCA1) peptide vaccination for castration resistant prostate cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Wataru Obara,Fuminori Sato,Kazuyoshi Takeda,Renpei Kato,Yoichiro Kato,Mitsugu Kanehira,Ryo Takata,Hiromitsu Mimata,Tamotsu Sugai,Yusuke Nakamura,Tomoaki Fujioka
View all publications
style
left-column
style
left-column
style
right-column

Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.
For full details, please see our Terms & Conditions

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