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Recombinant Human Epiregulin Protein

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SDS-Page: Recombinant Human Epiregulin Protein [NBP2-34989] - SDS-PAGE with Recombinant human Epiregulin Protein.

Product Details

Summary
Reactivity HuSpecies Glossary
Applications PAGE, Bioactivity
Format
Carrier-Free
Concentration
LYOPH

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Recombinant Human Epiregulin Protein Summary

Description
A single non-glycosylated polypeptide chain containing 49 amino acids corresponding to Epiregulin Source: E. coli

Uniprot ID: O14944

Amino Acid Sequence: VAQVSITKCS SDMNGYCLHG QCIYLVDMSQ NYCRCEVGYT GVRCEHFFL

Details of Functionality
EREG protein is fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using murine Balb/c 3T3 cells is less than 2 ng/ml, corresponding to a specific activity of > 5.0 x 10^5 IU/mg.
Source
E. coli
Protein/Peptide Type
Recombinant Protein
Gene
EREG
Purity
> 97 % pure by SDS-PAGE and HPLC
Endotoxin Note
Less than 1 EU/ug of Epiregulin as determined by LAL method.

Applications/Dilutions

Dilutions
  • Bioactivity
  • SDS-Page
Theoretical MW
5.6 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

Storage
Store at -20 to -70C as supplied. After reconstitution, store at 2 to 8C for 1 month and at -20 to -70C for long term storage. Avoid repeated freeze-thaw cycles.
Buffer
Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.4.
Preservative
No Preservative
Concentration
LYOPH
Purity
> 97 % pure by SDS-PAGE and HPLC
Reconstitution Instructions
Recommended to centrifuge prior to opening. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/mL. Apportion stock solutions into working aliquots and store at <-20C.

Notes

This lyophilized preparation is stable for 12 months from date of receipt at -20 to -70 degrees C, preferably desiccated. Upon reconstitution, the preparation can be stored for 1 month at 2-8 degrees C under sterile conditions, and for 3 months at -20 degrees C to -70 degrees C. Use a manual defrost freezer and avoid repeated freeze-thaw cycles. Stock solutions should be aliquoted and stored at < -20 degrees C. Further dilutions should be made in appropriate buffered solutions

Alternate Names for Recombinant Human Epiregulin Protein

  • Epiregulin
  • ER
  • EREG
  • proepiregulin

Background

Epiregulin encoded by the EREG gene in humans, is a member of the EGF family of growth factors. This family also includes epidermal growth factor (EGF), transforming growth factor (TGF)-alpha, amphiregulin (ARG), HB (heparin-binding)-EGF, betacellulin, and the various heregulins. Epiregulin is expressed mainly in the placenta and peripheral blood leukocytes and in certain carcinomas of the bladder, lung, kidney and colon. It stimulates the proliferation of keratinocytes, hepatocytes, fibroblasts and vascular smooth muscle cells. Additionally, it inhibits the growth of several tumor-derived epithelial cell lines. Human Epiregulin is initially synthesized as a glycosylated 19.0 kDa transmembrane precursor protein, which is processed by proteolytic cleavage to produce a 6.0 kDa mature secreted sequence.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 3 months from date of receipt.

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Bioinformatics

Gene Symbol EREG
Uniprot