Leinco Technologies

Recombinant Human Epiregulin

Product Code:
 
LEI-E152
Product Group:
 
Recombinant Proteins
Host Type:
 
Human
Regulatory Status:
 
RUO
Shipping:
 
Ambient
Storage:
 
This lyophilized protein is stable for six to twelve months when stored desiccated at -20°C to -70°C. After aseptic reconstitution this protein may be stored at 2°C to 8°C for one month or at -20°C to -70°C in a manual defrost freezer. Avoid Repeated Freeze Thaw Cycles. See Product Insert for exact lot specific storage instructions.
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CodeSizePrice
LEI-E152-25ug25 ug£580.00
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Further Information

Format:
This recombinant protein was 0.2 um filtered and lyophilized from modified Dulbecco?s phosphate buffered saline (1X PBS) with BSA as a carrier protein. pH 7.2 ? 7.3 with no calcium, magnesium, or preservatives.
Formulation:
This recombinant protein was 0.2 um filtered and lyophilized from modified Dulbecco?s phosphate buffered saline (1X PBS) with BSA as a carrier protein. pH 7.2 ? 7.3 with no calcium, magnesium, or preservatives.
Long Description:
Epiregulin (also known as EREG) is a member of the EGF family of growth factors. It binds specifically to EGFR (ErbB1) and ErbB4 but not ErbB2 or ErbB3 (1). It is expressed mainly in the placenta and peripheral blood leukocytes, as well as certain carcinomas of the bladder, lung, kidney and colon (2). EREG has been shown to act as an autocrine growth factor for human keratinocytes, stimulating the proliferation human keratinocytes under both subconfluent and confluent culture conditions in the absence of exogenous EGF family growth factors. In keratinocytes EREG upregulates the mRNA levels of HB-EGF, amphiregulin, and TGF-alpha. It has been shown that EGF, HB-EGF, amphiregulin, and TGF-alpha increase EREG mRNA levels (3). EREG inhibits the growth of several epithelial tumor cells and stimulates the growth of fibroblasts and various other types of cells. It binds to the EGF receptors of epidermoid carcinoma A431 cells much more weakly than EGF, but is much more potent than EGF as a mitogen for rat primary hepatocytes and Balb/c 3T3 A31 fibroblasts (4). EREG has been implicated in the implantation process during pregnancy (5).
NCBI Gene:
2069
Purity:
>97% by SDS-PAGE and analyzed by silver stain.
Target:
Epiregulin

References

1. Toyoda, H. et al. (1997) Biochem. J. 326:69 2. Komurasaki, T. et al. (1997) Oncogene 15:2841 3. Shirakata, Y. et al. (2000) J. Biol. Chem. 275:5748 4. Taylor, DS. et al. (1999) Proc. Nat. Acad. Sci. (USA) 96:1633 5. Das, SK. et al. (1997) Dev. Biol. 190:178