| Description | |
|---|---|
| Catalogue Number | MABC1115-25UL |
| Description | Anti-PD-L1 Antibody, clone 5H1 |
| Alternate Names |
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| Background Information | Programmed cell death 1 ligand 1 (UniProt Q9NZQ7; also known as B7-H1, B7 homolog 1, CD274, PD-L1, PDCD1 ligand 1, Programmed death ligand 1) is encoded by the CD274 (also known as B7H1, PDCD1L1, PDCD1LG1, PDL1) gene (Gene ID 29126) in human. PD-L1 is a single-pass type I membrane protein that plays a critical role in induction and maintenance of immune tolerance to self. It is expressed on activated T- and B-cells, dendritic cells, keratinocytes, and monocytes. Higher expression has also been reported in heart, skeletal muscle, placenta, and lung. PD-1 and PD-1 ligands 1 and 2 (PD-L1 and PD-L2) are B7:CD28 family members that regulate T cell activation and peripheral tolerance. When engaged together with the TCR, the interaction of PD-1 with its ligands delivers an inhibitory signal to T cell proliferation and cytokine production. While PD-L1 is broadly expressed in hematopoietic and nonhematopoietic cells, PD-L2 expression is highly restricted to antigen presenting cells (APCs), including dendritic cells (DCs) and macrophages. The PD-1 pathway plays a key role in the progressive loss of effector T cell responses during chronic HIV infection. Under some conditions, blockade of this pathway can restore many T cell functions. PD-L1 is initially produced with signal peptide (aa 1-18) sequence, which is subsequently cleaved off to produce the mature protein with a large extracellular (aa 19-238) region that contains an Ig-like V-type domain (aa 19-127) and an Ig-like C2-type domain (aa 133-225), followed by a transmembrane domain (aa 239-259) and a cytoplasmic tail (aa 260-290). |
| Product Information | |
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| Format | Purified |
| Presentation | Purified mouse monoclonal antibody IgG1 in PBS without azide. |
| Applications | |
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| Application | Anti-PD-L1, clone 5H1, Cat. No. MABC1115, is a mouse monoclonal antibody that detects PD-L1 and has been tested for use in Immunocytochemistry, Immunohistochemistry (Paraffin), and Western Blotting. |
| Key Applications |
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| Application Notes | Immunohistochemistry (Paraffin) Analysis: A representative lot detected PD-L1 in Immunohistochemistry applications (Bigelow, E., et. al. (2013). J Vis Exp. 3;(71); Spranger, S., et. al. (2013). Sci Transl Med. 5(200):200ra116; Parra, E.R., et. al. (2018). Appl Immunohistochem Mol Morphol. 26(2):83-93; Andorsky, D.J., et. al. (2011). Clin Cancer Res. 17(13):4232-44; Sunshine, J.C., et. al. (2017). Clin Cancer Res. 23(16):4938-4944). Western Blotting Analysis: A representative lot detected PD-L1 in Western Blotting applications (Parra, E.R., et. al. (2018). Appl Immunohistochem. Mol. Morphol. 26(2):83-93_. |
| Biological Information | |
|---|---|
| Immunogen | Full-length human recombinant PD-L1. |
| Epitope | extracellular domain |
| Clone | 5H1 |
| Concentration | Please refer to lot specific datasheet. |
| Host | Mouse |
| Specificity | Clone 5H1 detects human Programmed cell death ligand 1 (PD-L1). It targets an epitope with in the extracellular domain. |
| Isotype | IgG1κ |
| 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 | 33.28 kDa calculated. |
| Product Usage Statements | |
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| Quality Assurance | Evaluated by Immunocytochemistry in MDA-MB-231 cells. Immunocytochemistry Analysis: A 1:50 dilution of this antibody detected PD-L1 in MDA-MB-231 cells. |
| Usage Statement |
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| Storage and Shipping Information | |
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| Storage Conditions | Stable for 1 year at -20°C from date of receipt. Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. |
| Packaging Information | |
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| Material Size | 25 µL |