In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
erbB-2 is a transmembrane, tyrosine kinase (TK) receptor whose overexpression is associated with adverse prognosis in breast cancer1.
The human epidermal growth factor receptor (erbB-2) is a transmembrane receptor that is overexpressed in 15%–25% of breast cancers. erbB-2 overactivity is associated with adverse biological characteristics and poor clinical outcomes1.Overexpression of erbB2 in cell lines leads to transformation in the absence of a ligand2. None of the EGF family of ligands binds to ErbB2 directly. Therefore, in a technical sense, ErbB2 remains an orphan receptor.
A wide variety of human tumors contain an amplified or overexpressed erbB-2 gene, which encodes a growth factor receptor-like protein. When erbB-2 complementary DNA was expressed in NIH/3T3 cells under the control of the SV40 promoter, the gene lacked transforming activity despite expression of detectable levels of the erbB-2 protein. A further five- to tenfold increase in its expression under influence of the long terminal repeat of Moloney murine leukemia virus was associated with activation of erbB-2 as a potent oncogene. The high levels of the erbB-2 product associated with malignant transformation of NIH/3T3 cells were observed in human mammary tumor cells that overexpressed this gene3.
Figure1. Structure of erbB-2
1. V. Roy, E. A. Perez. Beyond Trastuzumab: Small Molecule Tyrosine Kinase Inhibitors in HER-2–Positive Breast Cancer The Oncologist 2009;14:1061–1069
2. Di Fiore PP, Pierce JH, Fleming TP, Hazan R, Ullrich A, King CR, Schlessinger J, Aaronson SA: Overexpression of the human EGF receptor confers an EGF-dependent transformed phenotype to NIH 3T3 cells. Cell 1987, 51:1063-1070.
3. P.P. Di Fiore, J. H. Pierce, M. H. Kraus, O. Segatto, C. R. King, S. A. Aaronson. erbB-2 is a Potent Oncogene When Overexpressed in NIH/3T3 Cells. Science, New Series, 237: 178-182
|Physical Appearance||A solid|
|Storage||Store at -20°C|
|Solubility||≥99.5mg/mL in DMSO|
|Canonical SMILES||O=C(N[[email protected]@H]([[email protected]](CC)C)C(N[[email protected]@H](CC1=CC=CC=C1)C(NCC(N[[email protected]@H](CO)C(N[[email protected]@H](CC(C)C)C(N[[email protected]](C)C(N[[email protected]@H](CC2=CC=CC=C2)C(N[[email protected]@H](CC(C)C)C(O)=O)=O)=O)=O)=O)=O)=O)=O)[[email protected]](CCCCN)N|
|Shipping Condition||Evaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request.|
|General tips||For obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months.|