Betacellulin from mouse
SIGMA/SRP3190 - recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture
Synonym: BTC
Product Type: Chemical
assay | ≥98% (HPLC) |
≥98% (SDS-PAGE) | |
biological source | mouse |
color | white to off-white |
form | lyophilized |
impurities | <0.1 EU/μg endotoxin, tested |
mol wt | 9.0 kDa |
packaging | pkg of 20 μg |
potency | ≤0.01 ng/mL ED50 |
recombinant | expressed in E. coli |
shipped in | wet ice |
storage temp. | −20°C |
technique(s) | cell culture | mammalian: suitable |
UniProt accession no. | Q05928 ![]() ![]() |
Analysis Note: | The biological activity of this product is measured by an ability to stimulate H-thmidine incorporation in EGF-responsive mouse BALB/c 3T3 fibroblasts. The EC50 is defined as the effective concentration of growth factor that elicits a 50% increase in cell growth in a cell based bioassay. |
Application: | This product has been used to study differentiation of pancreatic acinar cell line (AR42J) into insulin-secreting cells and has been linked to a role in the growth and differentiation of islet cells in human pancreas. |
Biochem/physiol Actions: | Betacellulin and the other members of the epidermal growth factor (EGF) family of growth factors bind with high affinity to both EGFR and to erb-b2 receptor tyrosine kinase 4 (erbB-4). Overexpression of betacellulin with erbB-3 and erbB-4 has been linked to human endometrial adenocarcinoma. |
Caution: | This product should be stored at -2-8°C. For longer-term storage, it is recommended to dilute in a buffer containing a carrier protein, for example, 0.1% BSA, and to store the solution frozen in working aliquots at 20°C or -80°C. |
General description: | Betacellulin is a member of the EGF family of growth factors and is produced by an expression of a DNA sequence encoding the mature 80 amino acid residue polypeptide. The protein is expressed in the small intestine and pancreas. It is initially synthesized as a glycosylated 32.0kDa transmembrane precursor protein, processed by proteolytic cleavage to produce the mature sequence. |
Preparation Note: | This product was lyophilized with no additives. It should be reconstituted by adding to water at a concentration of 0.1-1.0 mg/mL. The vial should be centrifuged prior to opening and the solution should not be vortexed. |
Sequence: | DGNTTRTPET NGSLCGAPGE NCTGTTPRQK VKTHFSRCPK QYKHYCIHGR CRFVVDEQTP SCICEKGYFG ARCERVDLFY |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 3 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥98% (HPLC); ≥98% (SDS-PAGE) |
Storage Temp. | −20°C |
UNSPSC | 12352200 |