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AB300124

Anti-CD47 antibody [EPR24922-21]

  • 20ul selling size
  • RabMAb
  • Recombinant
  • KO Validated
  • What is this?

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(2 Publications)

Rabbit Recombinant Monoclonal CD47 antibody. Suitable for WB, ICC/IF, Flow Cyt and reacts with Human samples. Cited in 2 publications.

View Alternative Names

CD47, MER6, Leukocyte surface antigen CD47, Antigenic surface determinant protein OA3, Integrin-associated protein, Protein MER6, IAP

5 Images
Immunocytochemistry/ Immunofluorescence - Anti-CD47 antibody [EPR24922-21] (AB300124)
  • ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Anti-CD47 antibody [EPR24922-21] (AB300124)

Immunofluorescent analysis of 4% Paraformaldehyde-fixed, 0.1% TritonX-100 permeabilized Jurkat (Human T cell leukemia T lymphocyte) cells labelling CD47 with ab300124 at 1/100 dilution, followed by Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed (ab150081) antibody at 1/1000 dilution.

Confocal image showing membranous staining in Jurkat cell line.

Negative control : HepG2 (PMID : 28378740).

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

Secondary antibody only control : Secondary antibody is Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed (ab150081) at 1/1000 dilution.

Flow Cytometry - Anti-CD47 antibody [EPR24922-21] (AB300124)
  • Flow Cyt

Lab

Flow Cytometry - Anti-CD47 antibody [EPR24922-21] (AB300124)

Flow cytometric analysis of Wild-type HEK-293T (human embryonic kidney epithelial cell, Right) / CD47 knockout HEK-293T (Left) cells labelling CD47 with ab300124 at 1/500 compared with a Rabbit monoclonal IgG (ab172730) / Black isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody).

Gated on viable cells.

Positive staining on HEK-293T cells (ab255449), while no staining on CD47 knockout HEK-293T cells (ab266324).

Immunocytochemistry/ Immunofluorescence - Anti-CD47 antibody [EPR24922-21] (AB300124)
  • ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Anti-CD47 antibody [EPR24922-21] (AB300124)

Immunofluorescent analysis of 4% Paraformaldehyde-fixed, 0.1% TritonX-100 permeabilized CD47 KO HEK293T (CD47 knockout human embryonic kidney epithelial cell) cells labelling CD47 with ab300124 at 1/100 dilution, followed by Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed (ab150081) antibody at 1/1000 dilution.

Confocal image showing membranous staining in Parental HEK293T cell line and no staining in CD47 KO HEK293T cell line.

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

Secondary antibody only control : Secondary antibody is Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) preadsorbed (ab150081) at 1/1000 dilution.

Western blot - Anti-CD47 antibody [EPR24922-21] (AB300124)
  • WB

Lab

Western blot - Anti-CD47 antibody [EPR24922-21] (AB300124)

Exposure time : Lane 1 : 10 seconds; Lane 2 : 180 seconds

In Western blot, Anti-GAPDH antibody [EPR16891] - Loading Control (ab181602) staining.

Negative control : HepG2 (PMID : 28378740).

Samples are non-boiled as boiling may cause protein aggregates.

All lanes:

Western blot - Anti-CD47 antibody [EPR24922-21] (ab300124) at 1/1000 dilution

Lane 1:

Jurkat (human T cell leukemia T lymphocyte) whole cell lysate at 20 µg

Lane 2:

HepG2 (human hepatocellular carcinoma epithelial cell) whole cell lysate at 20 µg

Lane 3:

U937 (human histiocytic lymphoma monocyte) whole cell lysate at 20 µg

Lane 4:

A549 (human lung carcinoma epithelial cell) whole cell lysate at 20 µg

Lane 5:

NIH:OVCAR-3 (human ovary adenocarcinoma epithelial cell) whole cell lysate at 20 µg

Secondary

Lanes 1 - 5:

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

Lanes 1 - 5:

Western blot - Anti-GAPDH antibody [EPR16891] - Loading Control (<a href='/en-us/products/primary-antibodies/gapdh-antibody-epr16891-loading-control-ab181602'>ab181602</a>) at 1/100000 dilution

Observed band size: 47-52 kDa

false

Western blot - Anti-CD47 antibody [EPR24922-21] (AB300124)
  • WB

Lab

Western blot - Anti-CD47 antibody [EPR24922-21] (AB300124)

Performed under reducing conditions.

Samples are non-boiled as boiling may cause protein aggregates.

False colour image of Western blot : Anti-CD47 antibody [EPR24922-21] (ab300124) staining at 1/1000 dilution, shown in green; Mouse anti-GAPDH antibody [6C5] (ab8245) loading control staining at 1/20000 dilution, shown in red.

In Western blot, ab300124 was shown to bind specifically to CD47. A diffuse band was observed at 47-52 kDa in wild-type HEK-293T cell lysates with no signal observed at this size in CD47 knockout cell line ab266324 (knockout cell lysate ab257220).

To generate this image, wild-type and CD47 knockout HEK-293T cell lysates were analyzed. First, samples were run on an SDS-PAGE gel then transferred onto an immobilon-FL PVDF membrane. Membranes were blocked in Intercept® (TBS) Blocking Buffer diluted with an equal volume of 0.1% TBS before incubation with primary antibodies overnight at 4 °C. Blots were washed four times in TBS-T, incubated with secondary antibodies for 1 h at room temperature, washed again four times then imaged.

Secondary antibodies used were Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (ab216776) at 1/20000 dilution.

Negative control : HepG2 (PMID : 28378740).

All lanes:

Western blot - Anti-CD47 antibody [EPR24922-21] (ab300124) at 1/1000 dilution

Lane 1:

Wild-type HEK-293T (human embryonic kidney epithelial cell) whole cell lysate at 20 µg

Lane 2:

CD47 knockout HEK-293T whole cell lysate at 20 µg

Lane 3:

Jurkat (human T cell leukemia T lymphocyte) whole cell lysate at 20 µg

Lane 4:

HepG2 (human hepatocellular carcinoma epithelial cell) whole cell lysate at 20 µg

Observed band size: 47-52 kDa

false

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR24922-21

Isotype

IgG

Carrier free

No

Reacts with

Human

Applications

WB, ICC/IF, Flow Cyt

applications

Immunogen

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

Reactivity data

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Product details

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.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

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

CD47 also referred to as integrin-associated protein carries a molecular weight of approximately 50 kDa. This protein is broadly expressed across various cell types notably on erythrocytes leukocytes and endothelial cells. Its transmembrane glycoprotein structure allows it to perform various cellular functions. CD47 interacts with specific ligands prominently SIRPα which are present on immune cells such as macrophages and dendritic cells. The engagement of CD47 with these ligands plays a major role in cellular signaling processes.
Biological function summary

CD47 functions as a "don't eat me" signal inhibiting phagocytosis by binding to SIRPα on macrophages. This protein is also important for cell adhesion and migration and can modulate interactions with integrins. While not a part of a large complex CD47 associates with various cytoskeletal and membrane proteins to maintain cellular architecture and transmission of mechanical forces. Additionally its interaction with thrombospondins influences angiogenesis and nitric oxide signaling.

Pathways

CD47 is extensively involved in the regulation of the immune response and angiogenesis. The interaction between CD47 and SIRPα plays a part in the regulation of macrophage activity impacting the immune signaling pathway. CD47 also interacts with integrins allowing it to contribute to the angiogenesis pathway which is critical in the formation of new blood vessels. These interactions help coordinate complex cellular responses and maintain tissue homeostasis.

CD47 levels have associations with cancer and chronic inflammatory diseases. In cancer CD47 overexpression can allow tumor cells to evade the immune response by downregulating phagocytosis through SIRPα interaction. Therapeutically targeting CD47 using agents like anti-CD47 antibodies shows potential for enhancing anti-tumor immunity. Additionally CD47 is involved in atherosclerosis where its interaction with thrombospondin-1 contributes to disease pathogenesis by affecting nitric oxide signaling and vascular remodeling.

Product protocols

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

Target data

Adhesive protein that mediates cell-to-cell interactions (PubMed : 11509594, PubMed : 15383453). Acts as a receptor for thrombospondin THBS1 and as modulator of integrin signaling through the activation of heterotrimeric G proteins (PubMed : 19004835, PubMed : 7691831, PubMed : 8550562). Involved in signal transduction, cardiovascular homeostasis, inflammation, apoptosis, angiogenesis, cellular self-renewal, and immunoregulation (PubMed : 11509594, PubMed : 15383453, PubMed : 19004835, PubMed : 27742621, PubMed : 32679764, PubMed : 7691831, PubMed : 8550562). Plays a role in modulating pulmonary endothelin EDN1 signaling (PubMed : 27742621). Modulates nitrous oxide (NO) signaling, in response to THBS1, hence playing a role as a pressor agent, supporting blood pressure (By similarity). Plays an important role in memory formation and synaptic plasticity in the hippocampus (By similarity). Receptor for SIRPA, binding to which prevents maturation of immature dendritic cells and inhibits cytokine production by mature dendritic cells (PubMed : 11509594). Interaction with SIRPG mediates cell-cell adhesion, enhances superantigen-dependent T-cell-mediated proliferation and costimulates T-cell activation (PubMed : 15383453). Positively modulates FAS-dependent apoptosis in T-cells, perhaps by enhancing FAS clustering (By similarity). Plays a role in suppressing angiogenesis and may be involved in metabolic dysregulation during normal aging (PubMed : 32679764). In response to THBS1, negatively modulates wound healing (By similarity). Inhibits stem cell self-renewal, in response to THBS1, probably by regulation of the stem cell transcription factors POU5F1/OCT4, SOX2, MYC/c-Myc and KLF4 (By similarity). May play a role in membrane transport and/or integrin dependent signal transduction (PubMed : 7691831). May prevent premature elimination of red blood cells (By similarity).
See full target information CD47

Publications (2)

Recent publications for all applications. Explore the full list and refine your search

Bioactive materials 55:257-270 PubMed41050141

2025

Synergistic fusion of CD47, VE-cadherin and mussel adhesion protein promotes endothelialization and suppresses inflammation in vascular stents.

Applications

Unspecified application

Species

Unspecified reactive species

Wenhua Yan,Shuyu Li,Tian Zhang,Junli Huang,Chengchen Deng,Kunshan Yuan,Nan Huang,Haijun Zhang,Guixue Wang

Nature communications 15:5670 PubMed38971872

2024

An in-situ peptide-antibody self-assembly to block CD47 and CD24 signaling enhances macrophage-mediated phagocytosis and anti-tumor immune responses.

Applications

Unspecified application

Species

Unspecified reactive species

Weiqi Zhang,Yinghua Zeng,Qiuqun Xiao,Yuanyuan Wu,Jiale Liu,Haocheng Wang,Yuting Luo,Jie Zhan,Ning Liao,Yanbin Cai
View all publications

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