Revision 5

#55011Store at -20C

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, IP, IHC-P, FC-L

REACTIVITY:

H

SENSITIVITY:

Endogenous

MW (kDa):

120, 82

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q9NPY3

Entrez-Gene Id:

22918

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:50
Immunohistochemistry (Paraffin) 1:800 - 1:3200
Flow Cytometry (Live) 1:400 - 1:1600

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/mL BSA, 50% glycerol, and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

For a carrier free (BSA and azide free) version of this product see product #55570.

Specificity / Sensitivity

CD93/C1qR (E5H9B) Rabbit mAb recognizes endogenous levels of total CD93/C1qR protein.

Species Reactivity:

Human

Source / Purification

Monoclonal antibody is produced by immunizing animals with recombinant protein specific to the extracellular domain of human CD93/C1qR protein.

Background

CD93/complement component C1q receptor (C1qR) is a type-I transmembrane glycoprotein belonging to the CLEC14 family of surface antigens, which share a similar ectodomain architecture highlighted by the presence of a C-type lectin domain and multiple EGF-like domains. CD93/C1qR expression is primarily restricted to endothelial cells associated with normal and tumor-associated vasculature as well as immune cells of the myeloid lineage, including monocytes and neutrophils (1). The extracellular domain of CD93/C1qR is rich in O-linked glycosylation modifications, which stabilizes its surface expression by protecting it from proteolytic cleavage (2,3). CD93/C1qR regulates various aspects of endothelial cell biology, including proliferation, migration, and adhesion (4). Indeed, research studies have demonstrated that surface expressed CD93/C1qR binds to an endothelial specific extracellular matrix ligand, multimerin-2, and disrupting the interaction compromises angiogenesis (5). Furthermore, CD93 expression is upregulated in tumor vasculature and correlates with poor survival (6-8).

  1. Nepomuceno, R.R. and Tenner, A.J. (1998) J Immunol 160, 1929-35.
  2. Park, M. and Tenner, A.J. (2003) J Cell Physiol 196, 512-22.
  3. Ikewaki, N. et al. (2013) Microbiol Immunol 57, 822-32.
  4. Orlandini, M. et al. (2014) Oncotarget 5, 2750-60.
  5. Khan, K.A. et al. (2017) Oncogene 36, 6097-6108.
  6. Bao, L. et al. (2016) Biochem Biophys Res Commun 476, 467-474.
  7. Langenkamp, E. et al. (2015) Cancer Res 75, 4504-16.
  8. Sun, Y. et al. (2021) Sci Transl Med 13, eabc8922. doi: 10.1126/scitranslmed.abc8922.

Species Reactivity

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

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting IP: Immunoprecipitation IHC-P: Immunohistochemistry (Paraffin) FC-L: Flow Cytometry (Live)

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
#55011

CD93/C1qR (E5H9B) Rabbit mAb

Western Blotting Image 1: CD93/C1qR (E5H9B) Rabbit mAb Expand Image
Western blot analysis of extracts from various cell lines using CD93/C1qR (E5H9B) Rabbit mAb (upper) or β-Actin (D6A8) Rabbit mAb #8457 (lower). Negative expression of CD93/C1qR protein in GRANTA 519 and Raji cells is consistent with the predicted expression pattern.
Western Blotting Image 2: CD93/C1qR (E5H9B) Rabbit mAb Expand Image
Western blot analysis of extracts from 293T cells, mock transfected (-) or transfected with a construct expressing Myc/DDK-tagged full-length human CD93/C1qR (hCD93/C1qR-Myc/DDK; +), using CD93/C1qR (E5H9B) Rabbit mAb (upper), Myc-Tag (71D10) Rabbit mAb #2278 (middle), or β-Actin (D6A8) Rabbit mAb #8457 (lower).
Immunoprecipitation Image 1: CD93/C1qR (E5H9B) Rabbit mAb Expand Image
Immunoprecipitation of CD93/C1qR protein from U-937 cell extracts. Lane 1 is 10% input, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is CD93/C1qR (E5H9B) Rabbit mAb. Western blot analysis was performed using CD93/C1qR (E5H9B) Rabbit mAb. Anti-rabbit IgG, HRP-linked Antibody #7074 was used as a secondary antibody.
Immunohistochemistry Image 1: CD93/C1qR (E5H9B) Rabbit mAb Expand Image

Immunohistochemical analysis of paraffin-embedded human non-Hodgkin lymphoma using CD93/C1qR (E5H9B) Rabbit mAb.

Immunohistochemistry Image 2: CD93/C1qR (E5H9B) Rabbit mAb Expand Image

Immunohistochemical analysis of paraffin-embedded human urothelial carcinoma using CD93/C1qR (E5H9B) Rabbit mAb.

Immunohistochemistry Image 3: CD93/C1qR (E5H9B) Rabbit mAb Expand Image

Immunohistochemical analysis of paraffin-embedded human papillary thyroid carcinoma using CD93/C1qR (E5H9B) Rabbit mAb.

Immunohistochemistry Image 4: CD93/C1qR (E5H9B) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human squamous cell carcinoma of the cervix using CD93/C1qR (E5H9B) Rabbit mAb.
Immunohistochemistry Image 5: CD93/C1qR (E5H9B) Rabbit mAb Expand Image

Immunohistochemical analysis of paraffin-embedded normal human placenta using CD93/C1qR (E5H9B) Rabbit mAb.

Immunohistochemistry Image 6: CD93/C1qR (E5H9B) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded normal human kidney using CD93/C1qR (E5H9B) Rabbit mAb.
Immunohistochemistry Image 7: CD93/C1qR (E5H9B) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded normal human stomach using CD93/C1qR (E5H9B) Rabbit mAb.
Immunohistochemistry Image 8: CD93/C1qR (E5H9B) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded normal human placenta using CD93/C1qR (E5H9B) Rabbit mAb (left) compared to concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (right).
Immunohistochemistry Image 9: CD93/C1qR (E5H9B) Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded U-937 cell pellet (left, positive) or GRANTA 519 cell pellet (right, negative) using CD93/C1qR (E5H9B) Rabbit mAb.
Flow Cytometry Image 1: CD93/C1qR (E5H9B) Rabbit mAb Expand Image
Flow cytometric analysis of live peripheral blood mononuclear cells preincubated with human Fc block (2.5 μg/million cells, 10 min) using CD93/C1qR (E5H9B) Rabbit mAb (right) or concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (left), co-stained with CD14 (FITC Conjugate). Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 647 Conjugate) #4414 was used as a secondary antibody.