Amphiregulin (AR), also known as Schwannoma-derived growth factor (SDGF), is a member of the epidermal growth factor (EGF) family of growth factors which includes, AR, EGF, transforming growth factor-a (TGF-a), heparin binding EGF-like growth factor (HB-EGF), betacellulin (BTC), epiregulin, and the neuregulins-1 through -4. All EGF family members are synthesized as type I transmembrane precursors and contain one or several EGF domains in their extracellular region. The bioactive form of the proteins is released by proteolytic cleavage. The ErbB family of receptors that includes ErbB1 - B4, mediates the biological activities of the EGF family ligands. AR was originally isolated from the conditioned media of PMA-treated MCF-7 human breast carcinoma cell line. AR mRNA expression can be detected in numerous carcinoma cell lines and in the epithelial cells of various human tissues including colon, stomach, breast, ovary and kidney. AR stimulates the proliferation of keratinocytes, mammary epithelial cells, fibroblasts, astrocytes and glial cells. AR is also a growth inhibitor for certain tumor cells. The gene for AR has been mapped to human chromosome 4q13-q21 and mouse chromosome 5. Human and mouse AR cDNA encode 252 and 248 amino acid residue type I membrane proteins, respectively. The two proteins share approximately 69% sequence identity. Mouse AR also shares 81% amino acid sequence homology with rat AR. Several secreted isoforms of AR that vary in length and/or glycosylation level can be found in cell conditioned media. The 98 amino acid residue recombinant AR has better receptor binding and biological activity than the C-terminal truncated forms of the protein.
Recombinant Mouse Amphiregulin Protein
R&D Systems | Catalog # 989-AR
Key Product Details
- R&D Systems E. coli-derived Recombinant Mouse Amphiregulin Protein (989-AR)
- Quality control testing to verify active proteins with lot specific assays by in-house scientists
- All R&D Systems proteins are covered with a 100% guarantee
Source
Accession Number
Applications
Product Specifications
Source
Ser94-Lys191
Purity
Endotoxin Level
N-terminal Sequence Analysis
Predicted Molecular Mass
Activity
The ED50 for this effect is 5-20 ng/mL.
Reviewed Applications
Read 2 reviews rated 5 using 989-AR in the following applications:
Formulation, Preparation, and Storage
Carrier Free
What does CF mean?CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
What formulation is right for me?In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
Carrier: 989-AR
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS containing at least 0.1% human or bovine serum albumin. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Carrier Free: 989-AR/CF
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
|
Calculators
Background: Amphiregulin
References
- Thompson, S.A. et al. (1996) J. Biol. Chem. 271:17927.
- Sonoda, H. et al. (1992) Biochem. Biophys. Res. Commun. 185:103.
- Normanno, N. et al. (2001) Frontiers in Bioscience 6:685.
Alternate Names
Gene Symbol
UniProt
Additional Amphiregulin Products
Product Documents for Recombinant Mouse Amphiregulin Protein
Certificate of Analysis
To download a Certificate of Analysis, please enter a lot or batch number in the search box below.
Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Recombinant Mouse Amphiregulin Protein
For research use only
Related Research Areas
Citations for Recombinant Mouse Amphiregulin Protein
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Customer Reviews for Recombinant Mouse Amphiregulin Protein (2)
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Application: In vivo studyVerified Customer | Posted 10/03/2022
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Application: In vivo studyVerified Customer | Posted 05/27/2022
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