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Human BTC / Betacellulin Protein

DatasheetSpecific ReferencesReviewsRelated ProductsProtocols
Human BTC Protein Product Information
Synonym:BTC
Protein Construction:A DNA sequence encoding the human BTC (P35070) (Met1-Tyr111) was expressed with six amino acids (LEVLFQ) at the C-terminus.
Species:Human
Expressed Host:Human Cells
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human BTC Protein QC Testing
Purity:> 90 % as determined by SDS-PAGE
Bio-Activity:Measured in a cell proliferation assay using Balb/3T3 mouse embryonic fibroblast cells.
The ED50 for this effect is typically 0.2-1 ng/mL.
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Asp 32
Molecule Mass:The recombinant human BTC comprises 87 amino acids and has a predicted molecular mass of 9.8 kDa. The apparent molecular mass of the protein is approximately 24 kDa in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile PBS, pH 7.4.
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human BTC Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Other BTC Recombinant Protein Products
12192-HCCH
Betacellulin / BTC Background

Betacellulin(BTC) is a member of the epidermal growth factor (EGF) family. These soluble proteins are ligands for one or more of the four receptor tyrosine kinases encoded by the ErbB gene family (ErbB-1/epidermal growth factor receptor (EGFR), neu/ErbB-2/HER2, ErbB-3/HER3 and ErbB-4/HER4). Betacellulin is a 32-kilodalton glycoprotein that appears to be processed from a larger transmembrane precursor by proteolytic cleavage. This protein is a ligand for the EGF receptor. BTC is a polymer of about 62-111 amino acid residues. Secondary Structure: 6% helical (1 helices; 3 residues)36% beta sheet (5 strands; 18 residues). BTC was originally identified as a growth-promoting factor in mouse pancreatic β-cell carcinoma cell line and has since been identified in humans. It plays a role in the growth and development of the neonate and/or mammary gland function. Betacellulin is a potent mitogen for retinal pigment epithelial cells and vascular smooth muscle cells.

Human Betacellulin / BTC References
  • Shing Y, et al. (1993) Betacellulin: a mitogen from pancreatic beta cell tumors. Science . 259(5101): 1604-7.
  • Riese DJ, et al. (1996) Betacellulin activates the epidermal growth factor receptor and erbB-4, and induces cellular response patterns distinct from those stimulated by epidermal growth factor or neuregulin-beta. Oncogene. 12(2): 345-53.
  • Bastian SE, et al. (2001) Measurement of betacellulin levels in bovine serum, colostrum and milk. J Endocrinol . 168: 203-12.
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    Catalog: 12192-HCCH-5
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    Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"