Programmed cell death 1 ligand 1 (PD-L1), which is also known as cluster of differentiation (CD274) or B7 homolog 1 (B7-H1), is a member of the growing B7 family of immune molecules. PD-L1 is a cell surface immunoglobulin with two Ig-like domains within the extracellular region and a short cytoplasmic domain. The protein is highly expressed in the heart, skeletal muscle, placenta and lung and weakly expressed in the thymus, spleen, kidney and liver. PD-L1 is expressed on activated T-cells, B-cells, dendritic cells, keratinocytes and monocytes. The gene encoding it is localized on human chromosome 9p24.1.
Immunogen
Synthetic peptide of human CD274
Biochem/physiol Actions
Programmed cell death 1 ligand 1 (PD-L1) is involved in the regulation of cellular and humoral immune responses. (4) PD-L1 is up-regulated on T- and B-cells, dendritic cells, keratinocytes and monocytes after lipopolysaccharide (LPS) and interferon-γ (IFNG) activation and up-regulated in B-cells activated by surface Ig cross-linking. PD-L1 is involved in the co-stimulatory signal, essential for T-cell proliferation and production of interleukin-10 (IL10) and IFNG, in an interleukin-2-dependent and a programmed cell death 1 (PDCD1)-independent manner.
Features and Benefits
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Physical form
Rabbit IgG in pH7.4 PBS, 0.05% NaN3, 40% Glycerol.
Frontiers in immunology, 13, 868053-868053 (2022-07-23)
Interferon regulatory factor 2 binding protein 2 (Irf2bp2), a co-repressor of Irf2, is required for fetal hepatic erythropoiesis through the expansion of erythromyeloid progenitors. Mice with germline ablation of the entire Irf2bp2 transcript produced no viable Irf2bp2-null pups in first
Journal of gynecologic oncology, 32(3), e32-e32 (2021-04-08)
To predict the prognosis of cervical cancer, we constructed a novel model with 5 specific cell types and identified a potential biomarker. We employed CIBERSORT and xCell method to evaluate the abundances of 23 cells types in tumor microenvironment. Five
Cancer immunology research, 7(10), 1580-1590 (2019-08-11)
PD-1 (CD279)-PD-L1 (CD274) inhibitory signaling is critical for cancer immune evasion, and thus has become one of the major targets in anticancer immunotherapy. There are several studies that demonstrate the potent effects of posttranslational modifications of CD274 on immune inactivation
The role of B7 family molecules in hematologic malignancy.
Greaves P and Gribben JG
Blood, 121(5), 734-744 (2013)
Integrative analysis reveals selective 9p24.1 amplification, increased PD-1 ligand expression, and further induction via JAK2 in nodular sclerosing Hodgkin lymphoma and primary mediastinal large B-cell lymphoma.
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