抗B7-H1抗体(Anti-B7-H1, Mouse, Goat-Poly, Biotin antibody)

• 価格
• Product Details
• Applications and Data
• Related Product & Information

価格

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Product Details

Species Reactivity	Mouse
Label	Biotin
Immunogen	Mouse myeloma cell line NS0-derived recombinant mouse PD-L1/B7-H1Phe19-Thr238Accession # Q9EP73
Source	Polyclonal Goat IgG
Purification	Antigen Affinity-purified
Specificity	Detects mouse PD-L1/B7-H1 in Western blots. In Western blots, approximately 15% cross-reactivity with recombinant human (rh) B7‑H1 is observed and less than 1% cross-reactivity with rhB7-H3, rhB7-H2, and recombinant mouse B7-H2 is observed.

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Applications and Data

	Recommended Concentration	Sample
Western Blot	0.1 µg/mL	Recombinant Mouse PD-L1/B7-H1 Fc Chimera (Catalog # 1019-B7)
Flow Cytometry	2.5 µg/106 cells	Mouse splenocytes

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Related Product & Information

Background

PD-L1/B7-H1

background_content

Background: PD-L1/B7-H1 Mouse B7 homolog 1(B7-H1), also called programmed death ligand 1 (PD-L1) and programmed cell death 1 ligand 1 (PDCD1L1), is a member of the B7 family of proteins that provide signals for regulating T cell activation and tolerance (1-4). Other family members include B7-1, B7-2, B7-H2, B7-H3, and PD-L2. B7 proteins are immunoglobulin (Ig) superfamily members with extracellular Ig-V-like and Ig-C-like domains and a short cytoplasmic region. Among the family members, they share from 20-40% amino acid (aa) sequence identity. The cloned mouse B7-H1/PD-L1 cDNA encodes a 290 aa type I membrane precursor protein with a putative 18 aa signal peptide, a 220 aa extracellular region containing one V-like and one C-like Ig domain, a 22 aa transmembrane region, and a 30 aa cytoplasmic domain. Mouse and human B7-H1/PD-L1 share approximately 70% aa sequence identity. B7-H1/PD-L1 is one of two ligands for programmed death-1 (PD-1), a member of the CD28 family of immunoreceptors. The other identified ligand is PD-L2. Mouse B7-H1/PD-L1 and PD-L2 share approximately 34% aa sequence identity and have similar functions. B7-H1/PD-L1 is constitutively expressed in various lymphoid and non-lymphoid organs including placenta, heart, pancreas, lung, liver and endothelium (1‑4). The expression of B7-H1/PD-L1 is detected on B cells, T cells, monocytes, dendritic cells, and thymic epithelial cells. IFN-gamma treatment induces B7-H1/PD-L1 expression in monocytes, dendritic cells and endothelial cells. B7-H1/PD-L1 expression is also upregulated in a variety of tumor cell lines. On previously activated T cells, B7-H1/PD-L1 interaction with PD-1 inhibits TCR-mediated proliferation and cytokine production, suggesting an inhibitory role in regulating immune responses. In contrast, a costimulatory function for the PD-1 ligands on resting T cells has also been reported (1-4).

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