PD-1/CD279 Polyclonal Antibody (E-AB-70311)

For research use only.
Verified Samples |
Verified Samples in WB: Human liver cancer, Mouse spleen, Mouse thymus, Mouse cecum, Mouse lymph nodes, Rat spleen, Rat thymus, Rat appendix, Rat lymph nodes |
Dilution | WB 1:500-1:2000 |
Isotype | IgG |
Host | Rabbit |
Reactivity | Human, Mouse, Rat |
Applications | WB |
Clonality | Polyclonal |
Immunogen | KLH conjugated Synthetic peptide corresponding to Mouse PD-1 |
Abbre | PD-1/CD279 |
Synonyms | CD279, CD279 antigen, PD 1, PD-1, PD1, PDCD 1, PDCD1, Programmed cell death 1, Programmed cell death 1 protein, Programmed cell death protein 1, Protein PD 1, Protein PD-1, SLEB2, Systemic lupus erythematosus susceptibility 2, hPD 1, hPD l, hPD-1, hSLE1 |
Swissprot | |
Calculated MW | 32 kDa |
Observed MW |
47-55 kDa
The actual band is not consistent with the expectation.
Western blotting is a method for detecting a certain protein in a complex sample based on the specific binding of antigen and antibody. Different proteins can be divided into bands based on different mobility rates. The mobility is affected by many factors, which may cause the observed band size to be inconsistent with the expected size. The common factors include: 1. Post-translational modifications: For example, modifications such as glycosylation, phosphorylation, methylation, and acetylation will increase the molecular weight of the protein. 2. Splicing variants: Different expression patterns of various mRNA splicing bodies may produce proteins of different sizes. 3. Post-translational cleavage: Many proteins are first synthesized into precursor proteins and then cleaved to form active forms, such as COL1A1. 4. Relative charge: the composition of amino acids (the proportion of charged amino acids and uncharged amino acids). 5. Formation of multimers: For example, in protein dimer, strong interactions between proteins can cause the bands to be larger. However, the use of reducing conditions can usually avoid the formation of multimers. If a protein in a sample has different modified forms at the same time, multiple bands may be detected on the membrane. |
Cellular Localization | Cell membrane, Membrane. |
Concentration | 0.75 mg/mL |
Buffer | Phosphate buffered solution, pH 7.4, containing 0.05% stabilizer, 1% protein protectant and 50% glycerol. |
Purification Method | Affinity purification |
Research Areas | Cancer, Cell Biology, Immunology |
Conjugation | Unconjugated |
Storage | Store at -20°C Valid for 12 months. Avoid freeze / thaw cycles. |
Shipping | The product is shipped with ice pack,upon receipt,store it immediately at the temperature recommended. |
background | 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) . 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 . 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 . 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 . 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 . |
Other Clones
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Unconjugated
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