Human WISP-1/CCN4 Alexa Fluor™ Plus 594-conjugated Antibody

R&D Systems, part of Bio-Techne | Catalog # AF1627AFP594

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AF1627AFP594-100UG
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Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, Western Blot

Label

Alexa Fluor Plus 594 (Excitation = 590 nm, Emission = 618 nm)

Antibody Source

Polyclonal Goat IgG

View all WISP-1/CCN4 Antibodies »

Product Specifications

Specificity

Detects human WISP‑1/CCN4 in direct ELISAs. In direct ELISAs, approximately 50% cross-reactivity with recombinant mouse WISP-1 is observed and less than 1% cross-reactivity with recombiant human (rh) CTGF and rhNOV is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Applications

Application
Recommended Usage

Immunohistochemistry

Optimal dilution of this antibody should be experimentally determined.

Western Blot

Optimal dilution of this antibody should be experimentally determined.

Background: WISP-1/CCN4

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).

References

  1. Pennica, D. et al. (1998) Proc. Natl. Acad. Sci. USA 95:14717.
  2. Tanada, S. et al. (2001) Oncogene 20:5525.
  3. Brigstock, D.R. et al. (2003) J. Clin. Pathol. Mol. Pathol. 56:127.
  4. Desnoyers, L. (2004) Curr. Pharm. Des. 10:3913.
  5. Brigstock, D.R. (2003) J. Endocrinol. 178:169.
  6. Li, Z. (2005) GenBank Accession # AAP43925.
  7. Li, Z. (2005) GenBank Accession # AAP43926.
  8. Li, Z. (2005) GenBank Accession # AAP43924.
  9. Cervello, M. et al. (2004) Ann. N.Y. Acad. Sci. 1028:432.
  10. French, D.M. et al. (2004), Am. J. Pathol. 165:855.
  11. Parisi, M.S. et al. (2006) Bone 38:671.

Long Name

Wnt-1 Induced Secreted Protein 1

Alternate Names

CCN4, WISP1

Entrez Gene IDs

8840 (Human); 22402 (Mouse); 102125044 (Cynomolgus Monkey)

Gene Symbol

CCN4

UniProt

O95388

Additional WISP-1/CCN4 Products

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Certificate of Analysis

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Product Specific Notices


This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

For research use only

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