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  • KD/KO Validated

PD-1/CD279 Monoclonal antibody

PD-1/CD279 Monoclonal Antibody for WB, IHC, IF-P, ELISA

Host / Isotype

Mouse / IgG2b

Reactivity

human, mouse, rat, pig

Applications

WB, IHC, IF-P, ELISA

Conjugate

Unconjugated

CloneNo.

4H4D1

Cat no : 66220-1-Ig

Synonyms

CD279, PD1, PD-1, 4H4D1, PD 1


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Tested Applications

Positive WB detected inRAW 264.7 cells, human lymph node tissue, rat spleen tissue, mouse thymus tissue, Jurkat cells, MOLT-4 cells, THP-1 cells, CTLL-2 cells, pig thymus tissue
Positive IHC detected inhuman tonsillitis tissue, human lymphoma tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
Positive IF-P detected inhuman tonsillitis tissue, human lymphoma tissue

Recommended dilution

ApplicationDilution
Western Blot (WB)WB : 1:5000-1:50000
Immunohistochemistry (IHC)IHC : 1:2000-1:8000
Immunofluorescence (IF)-PIF-P : 1:200-1:800
It is recommended that this reagent should be titrated in each testing system to obtain optimal results.
Sample-dependent, Check data in validation data gallery.

Product Information

66220-1-Ig targets PD-1/CD279 in WB, IHC, IF-P, ELISA applications and shows reactivity with human, mouse, rat, pig samples.

Tested Reactivity human, mouse, rat, pig
Cited Reactivityhuman, mouse, rat
Host / Isotype Mouse / IgG2b
Class Monoclonal
Type Antibody
Immunogen PD-1/CD279 fusion protein Ag12470 相同性解析による交差性が予測される生物種
Full Name programmed cell death 1
Calculated molecular weight 288 aa, 32 kDa
Observed molecular weight 32 kDa, 47-55 kDa
GenBank accession numberBC074740
Gene symbol PD-1
Gene ID (NCBI) 5133
RRIDAB_2881611
Conjugate Unconjugated
Form Liquid
Purification MethodProtein A purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.

Background Information

Programmed cell death 1 (PD-1, also known as CD279) is an immunoinhibitory receptor that belongs to the CD28/CTLA-4 subfamily of the Ig superfamily. It is a 288 amino acid (aa) type I transmembrane protein composed of one Ig superfamily domain, a stalk, a transmembrane domain, and an intracellular domain containing an immunoreceptor tyrosine-based inhibitory motif (ITIM) as well as an immunoreceptor tyrosine-based switch motif (ITSM) (PMID: 18173375). PD-1 is expressed during thymic development and is induced in a variety of hematopoietic cells in the periphery by antigen receptor signaling and cytokines (PMID: 20636820). Engagement of PD-1 by its ligands PD-L1 or PD-L2 transduces a signal that inhibits T-cell proliferation, cytokine production, and cytolytic function (PMID: 19426218). It is critical for the regulation of T cell function during immunity and tolerance. Blockade of PD-1 can overcome immune resistance and also has been shown to have antitumor activity (PMID: 22658127; 23169436). The calculated molecular weight of PD-1 is 32 kDa. It has been reported that PD-1 is heavily glycosylated and migrates with an apparent molecular mass of 47-55 kDa on SDS-PAGE (PMID: 8671665; 17640856; 17003438).

Protocols

Product Specific Protocols
WB protocol for PD-1/CD279 antibody 66220-1-IgDownload protocol
IHC protocol for PD-1/CD279 antibody 66220-1-IgDownload protocol
IF protocol for PD-1/CD279 antibody 66220-1-IgDownload protocol
Standard Protocols
Click here to view our Standard Protocols

Publications

SpeciesApplicationTitle
human,mouseIHC,IF

Nat Commun

ERK and USP5 govern PD-1 homeostasis via deubiquitination to modulate tumor immunotherapy

Authors - Xiangling Xiao
humanWB

Nat Commun

m6A mRNA demethylase FTO regulates melanoma tumorigenicity and response to anti-PD-1 blockade.

Authors - Seungwon Yang
mouseWB

Cancers (Basel)

Overcoming PD-1 Inhibitor Resistance with a Monoclonal Antibody to Secreted Frizzled-Related Protein 2 in Metastatic Osteosarcoma.

Authors - Patrick Nasarre
human,mouseWB,IHC

Biochem Pharmacol

Targeting HMGA1 contributes to immunotherapy in aggressive breast cancer while suppressing EMT

Authors - Xing Chang
human,mouseWB,IF

Int Immunopharmacol

EGCG suppresses PD-1 expression of T cells via inhibiting NF-κB phosphorylation and nuclear translocation

Authors - Zhong-Da Li
mouseWB

Int Immunopharmacol

HMGB1 promotes neutrophil PD-L1 expression through TLR2 and mediates T cell apoptosis leading to immunosuppression in sepsis

Authors - Jinlian Liu

Reviews

The reviews below have been submitted by verified Proteintech customers who received an incentive forproviding their feedback.


FH

Wiesława (Verified Customer) (12-08-2022)

works very well

  • Applications: Western Blot
  • Primary Antibody Dilution: 1:5000 overnight
  • Cell Tissue Type: human cell lines (25 μg): HL-60, NK-92; mouse thymus (25-45 μg)
PD-1/CD279 Antibody Western Blot validation (1:5000 overnight dilution) in human cell lines (25 μg): HL-60, NK-92; mouse thymus (25-45 μg) (Cat no:66220-1-Ig)
FH

Macarena Lucia (Verified Customer) (10-17-2022)

clear band

  • Applications: Western Blot
  • Primary Antibody Dilution: 1:1000
FH

Mona (Verified Customer) (10-17-2021)

Staining of paraffin-embedded lung tissue from hamster. Antigen retrieval was performed with Tris-EDTA (pH 9)

  • Applications: Immunohistochemistry
  • Primary Antibody Dilution: 1:100
  • Cell Tissue Type: hamster (lung)