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Key Product Details

Species Reactivity

Human

Applications

Flow Cytometry

Label

Alexa Fluor 405 (Excitation = 405 nm, Emission = 421 nm)

Antibody Source

Monoclonal Rat IgG2A Clone # 336304

Product Summary

Immunogen

Mouse myeloma cell line NS0-derived recombinant human Syndecan-4
Ser20-Glu145
Accession # P31431

Specificity

Detects human Syndecan-4 in direct ELISAs.

Clonality

Monoclonal

Host

Rat

Isotype

IgG2A

Applications

Application
Recommended Usage

Flow Cytometry

0.25-1 µg/106 cells
Sample: HeLa human cervical epithelial carcinoma cell line
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Formulation

Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Protect from light. Do not freeze.
  • 12 months from date of receipt, 2 to 8 °C as supplied.

Background: Syndecan-4

Syndecan-4, previously known as Amphiglycan or Ryudocan, is a member of the syndecan family of Type 1 transmembrane proteins capable of carrying Heparan Sulfate (HS) and Chondroitin Sulfate (CS) glycosaminoglycans. The four vertebrate syndecans have two conserved cytoplasmic domains and divergent extracellular portions, except for HS attachment sites. Syndecan-4 is the most similar to Syndecan-2, but is more universally expressed and is found in virtually every cell type. Expression can be upregulated by TGF-beta 2 and in response to mechanical stress in smooth muscle, wound healing, arterial injury or acute myocardial infarction, probably in response to at least one inflammatory mediator (1, 2). Human Syndecan-4 is synthesized as a 198 amino acid (aa) core protein with an 18 aa signal sequence, a 127 aa extracellular domain containing three consensus Ser-Gly sequences for the attachment of HS side chains, a 25 aa transmembrane region and a 28 aa cytoplasmic tail (3). Human Syndecan-4 ECD shares approximately 79%, 78% and 81% aa sequence identity with mouse, rat and porcine Syndecan-4 ECD, respectively. Addition of 20‑80 disaccharides per side chain adds considerably to the size of the 20 kDa core protein. Non-covalent homodimerization of Syndecan-4 is dependent on the transmembrane domain (4). The HS chains can bind fibronectin, SDF-1, antithrombin, FGF-2, midkine and tissue factor pathway inhibitor and can present FGF‑2 to its receptors (1, 2, 5). Proteolytic cleavage by plasmin, thrombin or a metalloproteinase may create a functional ectodomain (6‑8). Genetic disruption of the Syndecan-4 gene causes a mild phenotype, presumably due to compensation by other syndecans, but mice have an increase in placental thrombi as well as defects in wound healing and response to endotoxin shock (9, 10).

References

  1. Tkachenko, E. et al. (2005) Circ. Res. 96:488. 
  2. Oh, E.-S, and J. R. Couchman (2004) Mol. Cells 17:181.
  3. David, G. et al. (1992) J. Cell Biol. 118:961. 
  4. Choi, S. et al. (2005) J. Biol. Chem. 280:42573. 
  5. Charnaux, N. et al. (2005) FEBS J. 272:1937.  
  6. Schmidt, A. et al., J. Biol. Chem. 280:34441.
  7. Rauch, B. H. et al. (2005) J. Biol. Chem. 280:17507.
  8. Fitzgerald, M. L. et al. (2000) J. Cell Biol. 148:811.
  9. Ishiguro, K. et al. (2003) Glycoconj. J. 19:315.
  10. Echtermeyer, F. et al. (2001) J. Clin. Invest. 107:R9.

Alternate Names

Amphiglycan, Ryudocan, SDC4, Syndecan4

Entrez Gene IDs

6385 (Human); 20971 (Mouse)

Gene Symbol

SDC4

UniProt

Additional Syndecan-4 Products

Product Documents

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices


This product is provided under an agreement between Life Technologies Corporation and R&D Systems, Inc, and the manufacture, use, sale or import of this product is subject to one or more US patents and corresponding non-US equivalents, owned by Life Technologies Corporation and its affiliates. The purchase of this product conveys to the buyer the non-transferable right to use the purchased amount of the product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components (1) in manufacturing; (2) to provide a service, information, or data to an unaffiliated third party for payment; (3) for therapeutic, diagnostic or prophylactic purposes; (4) to resell, sell, or otherwise transfer this product or its components to any third party, or for any other commercial purpose. Life Technologies Corporation will not assert a claim against the buyer of the infringement of the above patents based on the manufacture, use or sale of a commercial product developed in research by the buyer in which this product or its components was employed, provided that neither this product nor any of its components was used in the manufacture of such product. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, Cell Analysis Business Unit, Business Development, 29851 Willow Creek Road, Eugene, OR 97402, Tel: (541) 465-8300. Fax: (541) 335-0354.

For research use only

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