Key Specifications Table
| Species Reactivity | Key Applications | Host | Format | Antibody Type |
|---|---|---|---|---|
| H | IH(P) | M | Purified | Monoclonal Antibody |
| Description | |
|---|---|
| Catalogue Number | MABC1122-100UG |
| Description | Anti-PD-1 Antibody, clone EH33 |
| Alternate Names |
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| Background Information | Programmed cell death protein 1 (UniProt: Q15116; also known as Protein PD-1, hPD-1, CD279) is encoded by the PDCD1 (also known as PD1) gene (Gene ID: 5133) in human. PD-1 is a monomeric inhibitory cell surface receptor involved in the regulation of T-cell function during immunity and tolerance. PD-1 is synthesized with a signal peptide (aa 1-20), which is subsequently cleaved off. The mature form contains an extracellular domain (aa 24-170), a transmembrane domain (aa 171-191), and a cytoplasmic domain (aa 192-288). PD-1 also contains a single N-terminal immunoglobulin variable region (IgV) like domain. PD-1 and its ligands, PD-L1 and PD-L2 play a key role in the maintenance of peripheral tolerance, a process by which the quiescence of autoreactive mature T cells is maintained. However, tumors and pathogens that cause chronic infections can exploit this pathway to escape T-cell mediated tumor-specific and pathogen-specific immunity. The effector functions of T-cells expressing PD-1 can be downregulated by PD-L1 or PD-L2 expressed by the tumor cells. PD-1 lacks SH2- or SH3-binding motifs on its cytoplasmic tail, but contains the N-terminal sequence VDYGEL that forms an immunoreceptor tyrosine-based inhibition motif (V/I/LxYxxL), which recruits SH2 domain-containing phosphatases. The cytoplasmic tail also contains the C-terminal sequence TEYATI, which forms an immunoreceptor tyrosine-based switch motif (TxYxxL). PD-1 ligation is reported to inhibit the activation of T-cell receptor proximal kinases, which results in attenuation of Lck-mediated phosphorylation of ZAP-70 and initiation of downstream events. PD-1 is also reported to impair the activation of the MEK-ERK MAP kinase pathway by inhibiting activation of PLC- 1 and Ras. (Ref.: Boussiotis, VA (2016). N. Engl. J. Med. 375; 1767-1778). |
| Product Information | |
|---|---|
| Format | Purified |
| Presentation | Purified mouse monoclonal antibody IgG2a in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide. |
| Quality Level | MQ100 |
| Applications | |
|---|---|
| Application | Anti-PD-1, clone EH33, Cat. No. MABC1122, is a mouse monoclonal antibody that detects Programmed cell death protein 1 (PD-1) in human cells and has been tested for use in Immunohistochemistry (Paraffin). |
| Key Applications |
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| Application Notes | Immunohistochemistry Analysis: A representative lot detected PD-1 in Immunohistochemistry applications (Sridharan, V., et. al. (2016). Cancer Immunol Res. 4(8):679-87; Calles, A., et. al. (2015). J Thorac Oncol. 10(12):1726-35; Bachireddy, P., et. al. (2014). Blood. 123(9):1412-21). |
| Biological Information | |
|---|---|
| Immunogen | Recombinant protein fragment corresponding to the extracellular domain of human PD-1 (as an Ig fusion protein). |
| Epitope | extracellular domain |
| Clone | EH33.1F9.G4.5 |
| Concentration | Please refer to lot specific datasheet. |
| Host | Mouse |
| Specificity | Clone EH33 specifically detects PD-1 in human cells. It targets an epitope with the extracellular domain. |
| Isotype | IgG2aκ |
| Species Reactivity |
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| Species Reactivity Note | Human. |
| Antibody Type | Monoclonal Antibody |
| Entrez Gene Number |
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| Gene Symbol |
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| Purification Method | Protein G purified |
| UniProt Number |
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| Molecular Weight | 31.65 kDa calculated. |
| Product Usage Statements | |
|---|---|
| Quality Assurance | Evaluated by Immunohistochemistry in human tonsil and human bone marrow tissues. Immunohistochemistry Analysis: A 1:250 dilution of this antibody detected PD-1 in human tonsil and human bone marrow tissues. |
| Usage Statement |
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| Storage and Shipping Information | |
|---|---|
| Storage Conditions | Stable for 1 year at 2-8°C from date of receipt. |
| Packaging Information | |
|---|---|
| Material Size | 100 μg |