Human WISP-1/CCN4 Antibody Summary
Accession # O95388
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.
WISP‑1/CCN4 in Human Breast Cancer Tissue. WISP‑1/CCN4 was detected in immersion fixed paraffin-embedded sections of human breast cancer tissue using 15 µg/mL Goat Anti-Human WISP‑1/CCN4 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1627) overnight at 4 °C. Tissue was stained with the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
- 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.
Human WISP-1 (Wnt-induced secreted protein-1; also CNN4) is a 40 kDa, secreted, heparin-binding glycoprotein that is a member of the CCN (or CTGF/Cyr61/Nov) cysteine-rich protein family (1‑5). It is synthesized as a 367 aa precursor that contains a series of structural homology modules. Following a 22 amino acid (aa) signal sequence, there is a 68 aa IGFBP-like domain (aa 53‑120), a 57 aa von Willebrand factor type C (VWC) module (aa 126‑182), a 40 aa TSP type I domain (aa 220‑259) and a 75 aa, C-terminal cysteine knot motif (aa 273‑347). The VWC module is associated with protein-protein interaction, the TSP domain binds sulfated glycoconjugates, and the cysteine knot mediates dimerization and receptor binding (4). It is likely that WISP-1 normally circulates as an 80 kDa homodimer (2). At least five alternative splice forms are known for WISP-1. One is 30 kDa in size, 258 aa in length, and shows a substitution of a His for aa 95‑182. This removes the VWC domain (2, 6). A second isoform is 155 aa in length and shows a frameshift at Arg 117 with a unique 38 aa C‑terminal extension. A third is 195 aa in length and shows a 31 aa substitution for the first 203 aa of the full length precursor (6). This retains the VWC and cysteine knot domains. A fourth shows a 43 aa substitution for aa 117‑367 for a total length of 163 aa. This effectively removes everything but the IGFBP-like domain (7). The last splice form contains a deletion of aa 25‑269 for a total length of 122 aa. Thus, only the signal sequence and cysteine knot motifs are retained (8). This leaves only the IGFBP-like domain (9). Full-length mature human WISP-1 is 85% aa identical to both mouse and rat WISP-1. WISP-1 is expressed by osteoblasts and may contribute to fracture healing by promoting bone cell formation (10, 11).
- Pennica, D. et al. (1998) Proc. Natl. Acad. Sci. USA 95:14717.
- Tanada, S. et al. (2001) Oncogene 20:5525.
- Brigstock, D.R. et al. (2003) J. Clin. Pathol. Mol. Pathol. 56:127.
- Desnoyers, L. (2004) Curr. Pharm. Des. 10:3913.
- Brigstock, D.R. (2003) J. Endocrinol. 178:169.
- Li, Z. (2005) GenBank Accession # AAP43925.
- Li, Z. (2005) GenBank Accession # AAP43926.
- Li, Z. (2005) GenBank Accession # AAP43924.
- Cervello, M. et al. (2004) Ann. N.Y. Acad. Sci. 1028:432.
- French, D.M. et al. (2004), Am. J. Pathol. 165:855.
- Parisi, M.S. et al. (2006) Bone 38:671.
Citation for Human WISP-1/CCN4 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.
1 Citation: Showing 1 - 1
Macrophage-derived IL-10 mediates mucosal repair by epithelial WISP-1 signaling
Authors: M Quiros, H Nishio, PA Neumann, D Siuda, JC Brazil, V Azcutia, R Hilgarth, MN O'Leary, V Garcia-Her, G Leoni, M Feng, G Bernal, H Williams, PH Dedhia, C Gerner-Smi, J Spence, CA Parkos, TL Denning, A Nusrat
J. Clin. Invest., 2017;0(0):.
Sample Types: In Vivo
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