Revision 5
Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB, IHC-Bond, IHC-P

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

45-50

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q08722

Entrez-Gene Id:

961

Product Information

Product Usage Information

This product is the carrier free version of product #63000. All data were generated using the same antibody clone in the standard formulation which contains BSA and glycerol.

This formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT&RUN, or CUT&Tag assays. If you require a carrier-free formulation for chromatin profiling, please contact us. Optimal dilutions/concentrations should be determined by the end user.

Formulation

Supplied in 1X PBS, BSA and Azide Free.

For standard formulation of this product see product #63000.

Storage

Store at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance.

Specificity / Sensitivity

CD47 (D3O7P) Rabbit mAb (BSA and Azide Free) recognizes endogenous levels of total CD47 protein.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Leu72 of human CD47 protein.

Background

CD47 is a five-pass transmembrane protein expressed on all normal cells. It binds to the SIRPα that is expressed on myeloid cells, including macrophages, and neuronal cells in the central nervous system. Binding of CD47 to SIRPα promotes phosphorylation of tyrosine residues in the immunoreceptor tyrosine-based inhibitory motifs (ITIMs) within the SIRPα cytoplasmic tail, inhibiting macrophage phagocytosis toward CD47-expressing cells. In this way, CD47 serves as a "don't eat me" signal or a marker of "self", functioning as an innate immune checkpoint. Additionally, CD47 was reported to modulate lymphocyte cell activation and proliferation (1-3). CD47 is overexpressed in many types of cancer. The expression level of CD47 on cancer cells is negatively associated with the response to therapies, and low expression on tumor cells is associated with a better prognosis and survival. Reagents that can block CD47-SIRPα interaction are being actively pursued for therapeutic applications (4,5). In addition to SIRPα, other proteins have been reported to bind to CD47. Thrombospondin-1 (TSP1) competes with SIRPα to bind to CD47 in the extracellular region and activates signaling pathways downstream of CD47 (6). CD47 can laterally associate with VEGFR2, FAS, and certain integrins in different contexts, and influences their downstream signaling (7-9). CD47 can be shed from the cell surface by proteolytic cleavage. In addition, CD47 is present on extracellular vesicles including exosomes, suggesting additional extracellular signaling potential (10).

  1. Murata, Y. et al. (2014) J Biochem 155, 335-44.
  2. Legrand, N. et al. (2011) Proc Natl Acad Sci USA 108, 13224-9.
  3. Barclay, A.N. and Van den Berg, T.K. (2014) Annu Rev Immunol 32, 25-50.
  4. Weiskopf, K. (2017) Eur J Cancer 76, 100-109.
  5. Matlung, H.L. et al. (2017) Immunol Rev 276, 145-164.
  6. Roberts, D.D. et al. (2012) Matrix Biol 31, 162-9.
  7. Kaur, S. et al. (2010) J Biol Chem 285, 38923-32.
  8. Azcutia, V. et al. (2013) Mol Biol Cell 24, 3358-68.
  9. Quesada, A.J. et al. (2005) Cell Death Differ 12, 649-58.
  10. Soto-Pantoja, D.R. et al. (2015) Crit Rev Biochem Mol Biol 50, 212-30.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Applications Key

WB: Western Blotting IHC-Bond: IHC Leica Bond IHC-P: Immunohistochemistry (Paraffin)

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

使用に関する制限

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Revision 5
#97253

CD47 (D3O7P) Rabbit mAb (BSA and Azide Free)

Western Blotting Image 1: CD47 (D3O7P) Rabbit mAb (BSA and Azide Free) Expand Image
Western blot analysis of extracts from various cell lines using CD47 (D3O7P) Rabbit mAb (upper) or COX IV (3E11) Rabbit mAb #4850 (lower). Data were generated using the standard formulation of this product.
Immunohistochemistry Image 1: CD47 (D3O7P) Rabbit mAb (BSA and Azide Free) Expand Image
Immunohistochemical analysis of paraffin-embedded human B cell Non-Hodgkin lymphoma using CD47 (D3O7P) Rabbit mAb performed on the Leica® BOND Rx. Data were generated using the standard formulation of this product.
Immunohistochemistry Image 2: CD47 (D3O7P) Rabbit mAb (BSA and Azide Free) Expand Image
Immunohistochemical analysis of paraffin-embedded human urothelial carcinoma using CD47 (D3O7P) Rabbit mAb performed on the Leica® BOND Rx. Data were generated using the standard formulation of this product.
Immunohistochemistry Image 3: CD47 (D3O7P) Rabbit mAb (BSA and Azide Free) Expand Image
Immunohistochemical analysis of paraffin-embedded human ovarian serous carcinoma using CD47 (D3O7P) Rabbit mAb performed on the Leica® BOND Rx. Data were generated using the standard formulation of this product.
Immunohistochemistry Image 1: CD47 (D3O7P) Rabbit mAb (BSA and Azide Free) Expand Image
Immunohistochemical analysis of paraffin-embedded human ovarian serous carcinoma using CD47 (D3O7P) Rabbit mAb. Data were generated using the standard formulation of this product.
Immunohistochemistry Image 2: CD47 (D3O7P) Rabbit mAb (BSA and Azide Free) Expand Image
Immunohistochemical analysis of paraffin-embedded human colon carcinoma using CD47 (D3O7P) Rabbit mAb. Data were generated using the standard formulation of this product.
Immunohistochemistry Image 3: CD47 (D3O7P) Rabbit mAb (BSA and Azide Free) Expand Image
Immunohistochemical analysis of paraffin-embedded human squamous cell lung carcinoma using CD47 (D3O7P) Rabbit mAb. Data were generated using the standard formulation of this product.
Immunohistochemistry Image 4: CD47 (D3O7P) Rabbit mAb (BSA and Azide Free) Expand Image
Immunohistochemical analysis of paraffin-embedded human prostate carcinoma using CD47 (D3O7P) Rabbit mAb (left) compared to concentration matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (right). Data were generated using the standard formulation of this product.
Immunohistochemistry Image 5: CD47 (D3O7P) Rabbit mAb (BSA and Azide Free) Expand Image
Immunohistochemical analysis of paraffin-embedded OVCAR3 cell pellet (left, positive) or Hep G2 cell pellet (right, negative) using CD47 (D3O7P) Rabbit mAb. Data were generated using the standard formulation of this product.