Human Dkk-3 Antibody

Catalog # Availability Size / Price Qty
Detection of Human Dkk‑3 by Western Blot.
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Product Details
Citations (10)
Supplemental Products

Human Dkk-3 Antibody Summary

Species Reactivity
Detects human Dkk-3 in direct ELISAs and Western blots. In direct ELISAs, approximately 35% cross-reactivity with recombinant mouse Dkk-3 is observed.
Polyclonal Goat IgG
Antigen Affinity-purified
Mouse myeloma cell line NS0-derived recombinant human Dkk-3
Accession # Q9UBP4
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


Recommended Concentration
Western Blot
1 µg/mL
See below
3-15 µg/mL
immersion fixed paraffin-embedded sections of Human Brain Hippocampus

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Western Blot Detection of Human Dkk‑3 antibody by Western Blot. View Larger

Detection of Human Dkk‑3 by Western Blot. Western blot shows lysates of HepG2 human hepatocellular carcinoma cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human Dkk-3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1118) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (HAF019). A specific band was detected for Dkk-3 at approximately 38 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Immunohistochemistry View Larger

Detection of Dkk‑3 in Human Brain Hippocampus. Dkk‑3 was detected in immersion fixed paraffin-embedded sections of Human Brain Hippocampus using Goat Anti-Human Dkk‑3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1118) at 3 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Goat IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC004). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using VisUCyte Antigen Retrieval Reagent-Basic (Catalog # VCTS021). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm in neurons. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: Dkk-3

Dkk-3, also known as REIC (Reduced Expansion in Immortalized Cells), is one of four numbered members of the Dickkopf family of Wnt antagonists (1). Dkk-3 is a secreted monomer expressed in many normal human tissues, most strongly in heart, brain and spinal cord (1, 2), and during early embryonic development in the mouse (3). N-glycosylation at up to four sites preceding or between two conserved cysteine-rich motifs results in expression of a 38 kDa glycoprotein (1, 4). The cysteine-rich motifs contain 10 cysteines each, with prokineticin and colipase families containing sequences similar to those of the second motif (1, 5). Human Dkk-3 shows 82%, 88%, 85%, and 53% amino acid (aa) identity with mouse, bovine, canine, and chick Dkk-3, respectively, and 37-45% aa identity with other human Dkk family members. Several lines of evidence implicate Dkk-3 as a negative growth regulator. Dkk-3 is downregulated in many tumors as compared to normal cells, sometimes by loss of heterozygosity (4, 6). Downregulation by CpG hypermethylation in acute lymphoblastic leukemia is correlated with faster progression and shorter survival (7). Release of cultured cells from serum starvation results in downregulation of Dkk-3 in late G1 phase of the cell cycle (6). Over-expression of
Dkk‑3 results in tumor cell-line-specific growth inhibition, induction of apoptosis, and decreased tumorigenicity in nude mice (2, 4, 6). The prototype Dickkopf member, Dkk-1, antagonizes Wnt family signaling by binding to Wnt receptors LRP5 and LRP6 (low-density lipoprotein receptor-related proteins) and promoting their internalization (1, 9, 10). Results are less straightforward for Dkk-3, where some studies show binding to LRP5/6 while others do not. These effects appear to be dependent on the cells and conditions used (1, 6-10).

  1. Krupnik, V.E. et al. (1999) Gene 238:301.
  2. Tsuji, T. et al. (2000) Biochem. Biophys. Res. Comm. 268:20.
  3. Kemp, C. et al. (2005) Dev. Dyn. 233:1064.
  4. Hsieh, S.-Y. et al. (2004) Oncogene 23:9183.
  5. Bullock, C.M. et al. (2004) Mol. Pharmacol. 65:582.
  6. Tsuji, T. et al. (2001) Biochem. Biophys. Res. Comm. 289:257.
  7. Roman-Gomez, J. et al. (2004) Br. J. Cancer 91:707.
  8. Hoang, B.H. et al. (2004) Cancer Res. 64:2734.
  9. Caricasole, A. et al. (2003) J. Biol. Chem. 278:37024.
  10. Mao, B. et al. (2001) Nature 411:321.
Long Name
Entrez Gene IDs
27122 (Human); 50781 (Mouse)
Alternate Names
dickkopf (Xenopus laevis) homolog 3; dickkopf 3; dickkopf homolog 3 (Xenopus laevis); Dickkopf-3; dickkopf-related protein 3; Dkk3; Dkk-3; hDkk-3; regulated in glioma; REIC; REICdkk-3; RIG; RIG-like 5-6; RIG-like 7-1

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Citations for Human Dkk-3 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

10 Citations: Showing 1 - 10
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  1. DKK3, Downregulated in Invasive Epithelial Ovarian Cancer, Is Associated with Chemoresistance and Enhanced Paclitaxel Susceptibility via Inhibition of the beta-Catenin-P-Glycoprotein Signaling Pathway
    Authors: QTT Nguyen, HS Park, TJ Lee, KM Choi, JY Park, D Kim, JH Kim, J Park, EJ Lee
    Cancers, 2022;14(4):.
    Species: Human
    Sample Types: Whole Cells
    Applications: IHC
  2. Fatty acid binding protein 4 (FABP4) overexpression in intratumoral hepatic stellate cells within hepatocellular carcinoma with metabolic risk factors
    Authors: N Chiyonobu, S Shimada, Y Akiyama, K Mogushi, M Itoh, K Akahoshi, S Matsumura, K Ogawa, H Ono, Y Mitsunori, D Ban, A Kudo, S Arii, T Suganami, S Yamaoka, Y Ogawa, M Tanabe, S Tanaka
    Am. J. Pathol., 2018;0(0):.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-P
  3. Loss of Dickkopf 3 Promotes the Tumorigenesis of Basal Breast Cancer
    PLoS ONE, 2016;11(7):e0160077.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot
  4. Automated Analysis and Classification of Histological Tissue Features by Multi-Dimensional Microscopic Molecular Profiling.
    Authors: Riordan D, Varma S, West R, Brown P
    PLoS ONE, 2015;10(7):e0128975.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-P
  5. Epigenetic silencing of the WNT antagonist Dickkopf 3 disrupts normal Wnt/beta-catenin signalling and apoptosis regulation in breast cancer cells.
    Authors: Xiang T, Li L, Yin X, Zhong L, Peng W, Qiu Z, Ren G, Tao Q
    J Cell Mol Med, 2013;17(10):1236-46.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot
  6. The clinicopathological significance of REIC expression in colorectal carcinomas.
    Authors: Wang W, Zhu W, Xu XY
    Histol. Histopathol., 2012;27(6):735-43.
    Species: Human
    Sample Types: Tissue Homogenates
    Applications: Western Blot
  7. Regulation of human skin pigmentation in situ by repetitive UV exposure: molecular characterization of responses to UVA and/or UVB.
    Authors: Choi W, Miyamura Y, Wolber R, Smuda C, Reinhold W, Liu H, Kolbe L, Hearing VJ
    J. Invest. Dermatol., 2010;130(6):1685-96.
    Species: Human
    Sample Types: Whole Tissue
    Applications: IHC-P
  8. The fibroblast-derived paracrine factor neuregulin-1 has a novel role in regulating the constitutive color and melanocyte function in human skin.
    Authors: Choi W, Wolber R, Gerwat W
    J. Cell. Sci., 2010;123(0):3102-11.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot
  9. Expression pattern of REIC/Dkk-3 in various cell types and the implications of the soluble form in prostatic acinar development.
    Authors: Zhang K, Watanabe M, Kashiwakura Y, Li SA, Edamura K, Huang P, Yamaguchi K, Nasu Y, Kobayashi Y, Sakaguchi M, Ochiai K, Yamada H, Takei K, Ueki H, Huh NH, Li M, Kaku H, Na Y, Kumon H
    Int. J. Oncol., 2010;37(6):1495-501.
    Species: Human
    Sample Types: Whole Cells
    Applications: ICC
  10. The Dickkopf-homolog 3 is expressed in tumor endothelial cells and supports capillary formation.
    Authors: Untergasser G, Steurer M, Zimmermann M, Hermann M, Kern J, Amberger A, Gastl G, Gunsilius E
    Int. J. Cancer, 2008;122(7):1539-47.
    Species: Human
    Sample Types: Whole Cells
    Applications: ICC


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Secondary Antibodies

Goat IgG (H+L) Antibody


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