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Key Documents

MABC991

Sigma-Aldrich

Anti-PD-L1 Antibody, clone 10F.9G2

clone 10F.9G2, from rat

Synonym(s):

PD-L1, PDCD1 ligand 1, Programmed death ligand 1, B7 homolog 1, B7-H1, CD274

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

rat

Quality Level

antibody form

purified antibody

antibody product type

primary antibodies

clone

10F.9G2, monoclonal

species reactivity

mouse

technique(s)

flow cytometry: suitable
immunohistochemistry: suitable
inhibition assay: suitable

isotype

IgG2bκ

NCBI accession no.

UniProt accession no.

shipped in

ambient

target post-translational modification

unmodified

General description

Programmed cell death 1 ligand 1 (UniProt: Q9EP73; also known as PD-L1, PDCD1 ligand 1, Programmed death ligand 1, B7 homolog 1, B7-H1, CD274) is encoded by the CD274 (also known as B7h1, Pdcd1l1, Pdcd1lg1, Pdl1) gene (Gene ID: 60533) in murine species. 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. PD-L1 is initially produced with signal peptide (aa: 1-18) sequence, the removal of which yields 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). 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 non-hematopoietic 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. Tumor-associated PD-L1 is reported to facilitate apoptosis of activated T cells and stimulate IL-10 production in T cells to mediate immune suppression. These effects can be blocked by some monoclonal PD-L1 antibodies and T cell function can be restored. (Ref.: Chen, L., and Han, X (2015). J. Clin. Invest. 125(9): 3384-3391).

Specificity

Clone 10F.9G2 specifically detects PD-L1 in murine EL4 lymphoma cells and targets the extracellular domain.

Immunogen

CHO-mPD-L1 transfectants.

Application

Detect PD-L1 using this rat monoclonal Anti-PD-L1 Antibody, clone 10F.9G2, Cat. No. MABC991. It has been tested in Flow Cytometry, Function Induction, Immunohistochemistry, and Inhibition studies.
Immunohistochemistry Analysis: A representative lot detected PD-L1 in Immunohistochemistry applications (Grabie, N., et. al. (2007). Circulation. 116(18):2062-71).

Induces Function Analysis: Blockade with a representative lot of anti-PD-L1 combined with IL-2 enhanced antiviral CD8 T cell responses during chronic LCMV infection (West, E.E., et. al. (2013). J Clin Invest. 123(6):2604-15).

Inhibition Analysis: A representative lot blocked the action of PD-L1 (Grabie, N., et. al. (2007). Circulation. 116(18):2062-71;West, E.E., et. al. (2013). J Clin Invest. 123(6):2604-15;El Annan, J., et. al. (2010). Invest Ophthalmol Vis Sci. 51(7):3418-23).

Quality

Evaluated by Flow Cytometry in EL4 cells.

Flow Cytometry Analysis: 1 µg/mL of this antibody detected PD-L1 in one million EL4 cells.

Target description

32.78 kDa calculated.

Linkage

Replaces: MABF405

Physical form

Format: Purified

Other Notes

Concentration: Please refer to lot specific datasheet.

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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