PD-1/CD279 Antibody

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

Host / Isotype

Mouse / IgG2b

Reactivity

human, rat, mouse

Applications

WB, IHC, IF, ELISA

Conjugate

Unconjugated

CloneNo.

4H4D1

Cat no : 66220-1-Ig

Synonyms

CD279, hPD 1, hPD l, PD1, PD-1, PD-1/CD279, PDCD1, programmed cell death 1, Protein PD 1, SLEB2



Tested Applications

Positive WB detected inmouse thymus tissue, human lymph node tissue, rat spleen 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 detected inhuman tonsillitis tissue
Planning an IF experiment? We recommend our CoraLite®488 and CoraLite®647 conjugated versions of this antibody.

Recommended dilution

ApplicationDilution
Western Blot (WB)WB : 1:2000-1:10000
Immunohistochemistry (IHC)IHC : 1:2000-1:8000
Immunofluorescence (IF)IF : 1:50-1:500
Sample-dependent, check data in validation data gallery

Product Information

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

Tested Reactivity human, rat, mouse
Cited Reactivity human, mouse
Host / Isotype Mouse / IgG2b
Class Monoclonal
Type Antibody
Immunogen PD-1/CD279 fusion protein Ag12470
Full Name programmed cell death 1
Calculated molecular weight 288aa,32 kDa
Observed molecular weight 32 kDa, 47-55 kDa
GenBank accession number BC074740
Gene symbol PDCD1
Gene ID (NCBI) 5133
Conjugate Unconjugated
Form Liquid
Purification Method Protein 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
humanIHC

Oncol Lett

Survival analysis with regard to PD-L1 and CD155 expression in human small cell lung cancer and a comparison with associated receptors.

Authors - Yaolin Xu
mouse,humanIHC,IF

Front Pharmacol

Berberine Maintains the Neutrophil N1 Phenotype to Reverse Cancer Cell Resistance to Doxorubicin.

Authors - Shuhui Zhang
humanWB

Aging (Albany NY)

Elevated lymphocyte specific protein 1 expression is involved in the regulation of leukocyte migration and immunosuppressive microenvironment in glioblastoma.

Authors - Jing-Yuan Cao
humanWB

Nat Commun

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

Authors - Seungwon Yang