JavaScript is disabled in your browser. Please enable JavaScript to view this website.
AB283867

Anti-PD-L1 antibody [RM1012] - BSA and Azide free

  • BOND RX™ Validated
  • RabMAb
  • KO Validated
  • Recombinant
  • What is this?

Be the first to review this product! Submit a review

|

(0 Publication)

Rabbit Recombinant Multiclonal PD-L1 antibody. Carrier free. Suitable for ICC, IP, Flow Cyt, WB, IHC-P, I-ELISA and reacts with Transfected cell line, Human, Recombinant fragment samples.

View Alternative Names

CD274, B7H1, PDCD1L1, PDCD1LG1, PDL1, Programmed cell death 1 ligand 1, PD-L1, PDCD1 ligand 1, Programmed death ligand 1, hPD-L1, B7 homolog 1, B7-H1

9 Images
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)

This data was developed using ab282458, the same antibody clone in a different buffer formulation.

Immunohistochemical analysis of paraffin-embedded Human breast cancer tissue labelling PD-L1 with ab282458 at 1/500 (0.876 ug/ml) dilution followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on human breast cancer. The section was incubated with ab282458 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin.

Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection).

Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)

This data was developed using ab282458, the same antibody clone in a different buffer formulation.

Immunohistochemical analysis of paraffin-embedded Human tonsil tissue labelling PD-L1 with ab282458 at 1/500 (0.876 ug/ml) dilution followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on human tonsil. The section was incubated with ab282458 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin.

Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection).

Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)

Immunohistochemical analysis of paraffin-embedded Human placenta tissue labelling PD-L1 with ab282458 at 1/500 (0.876 ug/ml) dilution followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on human placenta. The section was incubated with ab282458 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin.

Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection).

Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)

This data was developed using ab282458, the same antibody clone in a different buffer formulation.

Immunohistochemical analysis of paraffin-embedded Human lung cancer tissue labelling PD-L1 with ab282458 at 1/500 (0.876 ug/ml) dilution followed by a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection). Positive staining on human lung cancer. The section was incubated with ab282458 for 30 mins at room temperature. The immunostaining was performed on a Leica Biosystems BOND® RX instrument. Counterstained with Hematoxylin.

Secondary antibody only control : Secondary antibody is a ready to use LeicaDS9800 (Bond™ Polymer Refine Detection).

Heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0, epitope retrieval solution2) for 20 mins

Western blot - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)
  • WB

Supplier Data

Western blot - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)

This data was developed using ab282458, the same antibody clone in a different buffer formulation.

Blocking and Diluting buffer and concentration : 5% NFDM/TBST.

Low expression control : MCF7 (PMID : 28184013, 31741201).

All lanes:

Western blot - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (ab283867) at 1/1000 dilution

Lane 1:

NCI-H1975 (Human adenocarcinoma lung epithelial cell) whole cell lysate at 20 µg

Lane 2:

MDA-MB-231 (Human breast adenocarcinoma epithelial cell) whole cell lysate at 20 µg

Lane 3:

MCF7 (Human breast adenocarcinoma epithelial cell) whole cell lysate at 20 µg

Lane 4:

Human placenta lysate at 20 µg

Secondary

All lanes:

Western blot - Goat Anti-Rabbit IgG H&L (HRP) (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-hrp-ab97051'>ab97051</a>) at 1/100000 dilution

Predicted band size: 33 kDa

Observed band size: 40-60 kDa

false

Western blot - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)
  • WB

Supplier Data

Western blot - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)

This data was developed using ab282458, the same antibody clone in a different buffer formulation.

PD-L1 was immunoprecipitated from 0.35 mg NCI-H1975 (Human adenocarcinoma lung epithelial cell) whole cell lysate with ab282458 at 1/30 dilution (2ug in 0.35mg lysates). Western blot was performed on the immunoprecipitate using ab282458 at 1/1000 dilution. VeriBlot for IP secondary antibody(HRP)(ab131366) was used at 1/5000 dilution.

Lane 1 : NCI-H1975 (Human adenocarcinoma lung epithelial cell) whole cell lysate 10 ug

Lane 2 : ab282458 IP in NCI-H1975 whole cell lysate

Lane 3 : Rabbit monoclonal IgG (ab172730) instead of ab282458 in NCI-H1975 whole cell lysate

Blocking and dilution buffer and concentration : 5% NFDM/TBST.

Exposure time : 32 seconds

All lanes:

Western blot - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (ab283867)

Predicted band size: 33 kDa

Observed band size: 40-60 kDa

false

Immunocytochemistry - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)
  • ICC

Supplier Data

Immunocytochemistry - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)

This data was developed using ab282458, the same antibody clone in a different buffer formulation.

Immunofluorescent analysis of 4% Paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized CHO-PDL1 cells labelling PD-L1 with ab282458 at 1/1000 (0.438 ug/ml) dilution, followed by ab150077 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) antibody at 1/1000 dilution (Green). Confocal image showing membranous staining in CHO-PDL1 cells and no staining in CHO-S cells.

ab195889 Anti-alpha Tubulin mouse monoclonal antibody - Microtubule Marker (Alexa Fluor® 594) was used to counterstain tubulin at 1/200 2.5ug/ml dilution (Red). The Nuclear counterstain was DAPI (Blue).

Secondary antibody only control : Secondary antibody is ab150077 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) at 1/1000 dilution.

Flow Cytometry - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)
  • Flow Cyt

Supplier Data

Flow Cytometry - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)

This data was developed using ab282458, the same antibody clone in a different buffer formulation.

Flow cytometric analysis of CHO-S (Chinese hamster ovary epithelial cell (Blue)) / CHO-PDL1 (PD-L1 stably expessed Chinese hamster ovary epithelial cell) (Red)) cells labelling PD-L1 with ab282458 at 1/50 dilution (1ug). Goat anti rabbit IgG (Alexa Fluor® 488, ab150077) at 1/2000 dilution was used as the secondary antibody. Gated on viable cells.

Indirect ELISA - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)
  • I-ELISA

Supplier Data

Indirect ELISA - Anti-PD-L1 antibody [RM1012] - BSA and Azide free (AB283867)

This data was developed using ab282458, the same antibody clone in a different buffer formulation.

ELISA using ab282458 at varying antibody concentrations and antigen concentration at 1000 ng/ml. An Alkaline Phosphatase-conjugated AffiniPure Goat Anti-Rabbit IgG (H+L) (1/2500) was used as the secondary antibody.

Key facts

Host species

Rabbit

Clonality

Multiclonal

Clone number

RM1012

Isotype

IgG

Carrier free

Yes

Reacts with

Human

Applications

IHC-P, WB, IP, I-ELISA, ICC, Flow Cyt

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "ICC" : {"fullname" : "Immunocytochemistry", "shortname":"ICC"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "FlowCyt" : {"fullname" : "Flow Cytometry", "shortname":"Flow Cyt"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"}, "IELISA" : {"fullname" : "Indirect ELISA", "shortname":"I-ELISA"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "ICC-species-checked": "guaranteed", "ICC-species-dilution-info": "", "ICC-species-notes": "", "IP-species-checked": "guaranteed", "IP-species-dilution-info": "", "IP-species-notes": "<p></p>", "FlowCyt-species-checked": "guaranteed", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "", "WB-species-notes": "<p></p>", "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "IELISA-species-checked": "guaranteed", "IELISA-species-dilution-info": "", "IELISA-species-notes": "" }, "Mouse": { "ICC-species-checked": "notRecommended", "ICC-species-dilution-info": "", "ICC-species-notes": "", "IP-species-checked": "notRecommended", "IP-species-dilution-info": "", "IP-species-notes": "", "FlowCyt-species-checked": "notRecommended", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "", "WB-species-checked": "notRecommended", "WB-species-dilution-info": "", "WB-species-notes": "", "IHCP-species-checked": "notRecommended", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "IELISA-species-checked": "notRecommended", "IELISA-species-dilution-info": "", "IELISA-species-notes": "" }, "Rat": { "ICC-species-checked": "notRecommended", "ICC-species-dilution-info": "", "ICC-species-notes": "", "IP-species-checked": "notRecommended", "IP-species-dilution-info": "", "IP-species-notes": "", "FlowCyt-species-checked": "notRecommended", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "", "WB-species-checked": "notRecommended", "WB-species-dilution-info": "", "WB-species-notes": "", "IHCP-species-checked": "notRecommended", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "IELISA-species-checked": "notRecommended", "IELISA-species-dilution-info": "", "IELISA-species-notes": "" }, "Recombinant fragment": { "ICC-species-checked": "notRecommended", "ICC-species-dilution-info": "", "ICC-species-notes": "", "IP-species-checked": "notRecommended", "IP-species-dilution-info": "", "IP-species-notes": "", "FlowCyt-species-checked": "notRecommended", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "", "WB-species-checked": "notRecommended", "WB-species-dilution-info": "", "WB-species-notes": "", "IHCP-species-checked": "notRecommended", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "IELISA-species-checked": "testedAndGuaranteed", "IELISA-species-dilution-info": "", "IELISA-species-notes": "<p></p>" }, "Transfected cell line": { "ICC-species-checked": "testedAndGuaranteed", "ICC-species-dilution-info": "", "ICC-species-notes": "<p></p>", "IP-species-checked": "notRecommended", "IP-species-dilution-info": "", "IP-species-notes": "", "FlowCyt-species-checked": "testedAndGuaranteed", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "<p></p>", "WB-species-checked": "notRecommended", "WB-species-dilution-info": "", "WB-species-notes": "", "IHCP-species-checked": "notRecommended", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "IELISA-species-checked": "notRecommended", "IELISA-species-dilution-info": "", "IELISA-species-notes": "" } } }

Product details

ab283867 is the carrier-free version of ab282458.

What are recombinant multiclonals?
Recombinant multiclonals are a mixture of recombinant antibodies co-expressed from a library of heavy and light chains. They offer several advantages including:

  • - The sensitivity of polyclonal antibodies by recognising multiple epitopes
  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

View our range of recombinant multiclonal antibodies.

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

Compatibility
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Constituents: PBS
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

PD-L1 also known as Programmed Death-Ligand 1 or CD274 is a protein involved in immune modulation. Mechanically PD-L1 interacts with its receptors particularly PD-1 to regulate cellular immune responses. This transmembrane protein has a calculated molecular weight of approximately 33 kDa. PD-L1 is expressed on various cell types including tumor cells and immune cells such as dendritic cells macrophages and B cells. Its expression is often upregulated in response to inflammatory cytokines.
Biological function summary

PD-L1 plays a central role in immune evasion mechanisms utilized by tumors. It is not part of a larger protein complex but directly interacts with PD-1 and CD80. When PD-L1 binds to PD-1 it sends inhibitory signals leading to decreased T cell activation and proliferation allowing cancer cells to avoid immune destruction. PD-L1 expression provides a mechanism for tumors to suppress immune surveillance facilitating tumor progression.

Pathways

PD-L1 is integral to the immune checkpoint pathway which is an important regulator of immune response. The interaction between PD-L1 and PD-1 provides a mechanism for immune tolerance which is part of the broader adaptive immune system pathway. PD-L1 is related to other immune checkpoint proteins such as CTLA-4 in its function to limit autoreactivity and promote immune homeostasis.

PD-L1 is most associated with cancer particularly in tumors such as melanoma and non-small cell lung cancer. PD-L1 expression on tumor cells often correlates with poor prognosis. PD-L1 directly interacts with PD-1 in these cancers a target for immunotherapies such as checkpoint inhibitors which aim to block this interaction and restore immune activity against tumors. PD-L1 involvement extends to autoimmune disorders where altered expression can impact tolerance and lead to immune-related tissue damage.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Plays a critical role in induction and maintenance of immune tolerance to self (PubMed : 11015443, PubMed : 28813410, PubMed : 28813417, PubMed : 31399419). As a ligand for the inhibitory receptor PDCD1/PD-1, modulates the activation threshold of T-cells and limits T-cell effector response (PubMed : 11015443, PubMed : 28813410, PubMed : 28813417, PubMed : 36727298). Through a yet unknown activating receptor, may costimulate T-cell subsets that predominantly produce interleukin-10 (IL10) (PubMed : 10581077). Can also act as a transcription coactivator : in response to hypoxia, translocates into the nucleus via its interaction with phosphorylated STAT3 and promotes transcription of GSDMC, leading to pyroptosis (PubMed : 32929201).. The PDCD1-mediated inhibitory pathway is exploited by tumors to attenuate anti-tumor immunity and escape destruction by the immune system, thereby facilitating tumor survival (PubMed : 28813410, PubMed : 28813417). The interaction with PDCD1/PD-1 inhibits cytotoxic T lymphocytes (CTLs) effector function (By similarity). The blockage of the PDCD1-mediated pathway results in the reversal of the exhausted T-cell phenotype and the normalization of the anti-tumor response, providing a rationale for cancer immunotherapy (By similarity).
See full target information CD274

Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.
For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com