Recombinant Mouse Betacellulin Protein

Carrier Free

Catalog # Availability Size / Price Qty
1025-CE-025/CF

With Carrier

Catalog # Availability Size / Price Qty
1025-CE-025
R&D Systems Recombinant Proteins and Enzymes
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Citations (5)
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Recombinant Mouse Betacellulin Protein Summary

Product Specifications

Purity
>97%, by SDS-PAGE under reducing conditions and visualized by silver stain
Endotoxin Level
<0.01 EU per 1 μg of the protein by the LAL method.
Activity
Measured in a cell proliferation assay using Balb/3T3 mouse embryonic fibroblast cells. Rubin, J.S. et al. (1991) Proc. Natl. Acad. Sci. USA 88:415. The ED50 for this effect is 0.15-0.6 ng/mL.
Source
E. coli-derived mouse Betacellulin/BTC protein
Asp32-Gln118
Accession #
N-terminal Sequence
Analysis
Asp32
Predicted Molecular Mass
9.9 kDa

Product Datasheets

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1025-CE (with carrier)

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1025-CE/CF (carrier free)

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.

1025-CE

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.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

1025-CE/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.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Reconstitution Calculator

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: Betacellulin/BTC

Betacellulin (BTC) is a member of the EGF family of cytokines which includes EGF, TGF-alpha, amphiregulin, HB-EGF, epiregulin, tomoregulin and the neuregulins. All EGF famiy members are synthesized as type I transmembrane precursor proteins containing one or more EGF-like domains in their extracellular region (1). BTC, a heparin-binding protein, was originally isolated from the conditioned media of mouse pancreatic beta tumor cells as a 32 kDa glycoprotien (2). The mouse BTC cDNA encodes a 177 amino acid (aa) residue precursor with a 31 aa signal peptide, an 87 aa residue extracellular region containing one EGF-like domain, a 21 aa transmembrane domain and a 38 aa cytoplasmic domain. Soluble BTC is released from the transmembrane precursor by proteolytic processing (3). Mouse BTC shares 93% and 79% aa sequence identity with rat and human BTC, respectively (1). The mouse BTC gene is tightly linked to that of amphiregulin on mouse chromosome 5 (4). BTC is expressed in most tissues including kidney, uterus, liver and pancreas. It is also present in body fluids including serum, milk and colostrum (5). BTC promotes pancreatic beta-cell growth and differentiation (6) and is a potent mitogen for retinal pigment epithelial cells, vascular smooth muscle cells and fibroblasts (1). The effects of BTC is mediated by binding to ErbB1 and ErbB4 homodimers as well as ErbB heterodimers (1).

References
  1. Dunbar, A.J. and C. Goddard (2000) Int. J. Biochem. Cell Biol. 32:805.
  2. Shing, Y. et al. (1993) Science 259:1604.
  3. Tada, H. et al. (1999) J. Cell Biochem. 72:423.
  4. Pathak, B.G. et al. (1995) Genomics 28:116.
  5. Bastian, S.E. et al. (2001) J. Endocrinol. 168:203.
  6. Li, L. et al. (2001) Endocrinology 142:5379.
Entrez Gene IDs
685 (Human); 12223 (Mouse)
Alternate Names
Betacellulin; BTC; probetacellulin

Citations for Recombinant Mouse Betacellulin Protein

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

5 Citations: Showing 1 - 5
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  1. Epithelium-derived Indian Hedgehog restricts stromal expression of ErbB family members that drive colonic tumor cell proliferation
    Authors: F Westendorp, ON Karpus, PJ Koelink, JLM Vermeulen, S Meisner, J Koster, NVJA Büller, ME Wildenberg, V Muncan, GR van den Br
    Oncogene, 2021-01-21;0(0):.
    Species: Transgenic Mouse
    Sample Types: Organoid
    Applications: Bioassay
  2. Epiregulin and EGFR interactions are involved in pain processing
    Authors: LJ Martin, SB Smith, A Khoutorsky, CA Magnussen, A Samoshkin, RE Sorge, C Cho, N Yosefpour, S Sivaselvac, S Tohyama, T Cole, TM Khuong, E Mir, DG Gibson, JS Wieskopf, SG Sotocinal, JS Austin, CB Meloto, JH Gitt, C Gkogkas, N Sonenberg, JD Greenspan, RB Fillingim, R Ohrbach, GD Slade, C Knott, R Dubner, AG Nackley, A Ribeiro-da, GG Neely, W Maixner, DV Zaykin, JS Mogil, L Diatchenko
    J. Clin. Invest., 2017-08-07;0(0):.
    Species: Mouse
    Sample Types: In Vivo
    Applications: In Vivo
  3. Temporal expression of growth factors triggered by epiregulin regulates inflammation development.
    Authors: Harada M, Kamimura D, Arima Y, Kohsaka H, Nakatsuji Y, Nishida M, Atsumi T, Meng J, Bando H, Singh R, Sabharwal L, Jiang J, Kumai N, Miyasaka N, Sakoda S, Yamauchi-Takihara K, Ogura H, Hirano T, Murakami M
    J Immunol, 2015-01-02;194(3):1039-46.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  4. Transcription factor Dlx2 protects from TGFbeta-induced cell-cycle arrest and apoptosis.
    Authors: Yilmaz M, Maass D, Tiwari N, Waldmeier L, Schmidt P, Lehembre F, Christofori G
    EMBO J., 2011-09-06;30(21):4489-99.
    Species: Mouse
    Sample Types: Whole Cells
    Applications: Bioassay
  5. Betacellulin and nicotinamide sustain PDX1 expression and induce pancreatic beta-cell differentiation in human embryonic stem cells.
    Authors: Cho YM, Lim JM, Yoo DH, Kim JH, Chung SS, Park SG, Kim TH, Oh SK, Choi YM, Moon SY, Park KS, Lee HK
    Biochem. Biophys. Res. Commun., 2007-12-04;366(1):129-34.
    Species: Human
    Sample Types: Whole Cells
    Applications: Bioassay

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