biological source
rabbit
conjugate
unconjugated
antibody form
IgG fraction of antiserum
antibody product type
primary antibodies
clone
polyclonal
form
buffered aqueous solution
species reactivity
rat, human, mouse, chicken
technique(s)
indirect immunofluorescence: 1:500 using mouse fibroblasts NIH3T3 cell line, western blot: 1:1,000 using cytosol extract of rat brain, whole extract of chicken embryo fibroblasts, or whole cell extract of the human epidermoid carcinoma A431 cell line
UniProt accession no.
shipped in
dry ice
storage temp.
−20°C
target post-translational modification
unmodified
Quality Level
Gene Information
human ... CTTN(2017)
mouse ... Cttn(13043)
rat ... Cttn(60465)
General description
Cortactin is an F-actin binding protein. It belongs to a highly conserved family of perimembrane signaling protein. Cortactin contains a unique multi-domain structure consisting of 6.5 tandem repeats of a 37-amino acid sequence required for direct binding to F-actin, followed by an α-helix region, a proline-rich region, and three tyrosine residues targeted by Src related kinases. The C-terminal region contains a Src-homology 3 (SH3) domain.
Cortactin is encoded by the CTTN gene on chromosome 11 in humans. It is expressed in most adherent cells and is a prominent substrate of protein-tyrosine kinase Src. The protein localizes within lamellipodia and at the cell surface. Cortactin is also called as EMS1.
Immunogen
synthetic peptide corresponding to the mid-region of human cortactin (amino acids 361-380) conjugated to KLH.
Application
Anti-Cortactin (KE-20) antibody produced in rabbit is suitable for indirect immunofluorescence at a dilution of 1:500 using mouse fibroblasts NIH3T3 cell line and western blotting at a dilution of 1:1,000 using cytosol extract of rat brain, whole extract of chicken embryo fibroblasts, or whole cell extract of the human epidermoid carcinoma A431 cell line.
Biochem/physiol Actions
Cortactin is a cytoskeleton protein that facilitates the assembly of cortical actin. It is activated by phosphorylation of tyrosine kinases or serine/threonine kinases. It plays an important role in promoting lamellipodia formation, invadopodia formation, cell migration, and endocytosis. Cortactin regulates the interactions between components of adherens-type junctions and helps in organizing the cytoskeleton, cell adhesion structures of epithelia and carcinoma cells. During apoptosis, the encoded protein is degraded in a caspase-dependent manner. It acts as a regulator in invasion and migration of tumor cells. Overexpression of cortactin causes osteosarcoma carcinogenesis and along with FAK increases the risk of oral premalignant lesions.
Physical form
Supplied as a solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
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存储类别
10 - Combustible liquids
wgk
nwg
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
常规特殊物品
低风险生物材料
此项目有
Activation of Arp2/3 complex-mediated actin polymerization by cortactin
Uruno T, et al.
Nature Cell Biology, 3(3), 259-259 (2001)
David Hattan et al.
The Journal of biological chemistry, 277(41), 38596-38606 (2002-08-02)
Tyrosine phosphorylation evokes functional changes in a variety of ion channels. Modulation of the actin cytoskeleton also affects the function of some channels. Little is known about how these avenues of ion channel regulation may interact. We report that the
Aviv Bergman et al.
Cell adhesion & migration, 8(3), 273-279 (2014-04-10)
Invadopodia are dynamic protrusions in motile tumor cells whose function is to degrade extracellular matrix so that cells can enter into new environments. Invadopodia are specifically identified by microscopy as proteolytic invasive protrusions containing TKS5 and cortactin. The increasing complexity
S Brookes et al.
Genes, chromosomes & cancer, 6(4), 222-231 (1993-04-01)
DNA markers that map within the karyotypically defined band q13 on human chromosome 11 are amplified in a subset of mammary and squamous cell carcinomas. It is assumed that the amplified DNA includes a critical gene (or genes) whose overexpression
Cortactin is a sensitive biomarker relative to the poor prognosis of human hepatocellular carcinoma.
Gang Zhao et al.
World journal of surgical oncology, 11, 74-74 (2013-03-23)
Cortactin is an important regulator involved in invasion and migration of hepatocellular carcinoma (HCC). The aim of this study was to elucidate the forecasting role of cortactin in resectable HCCs. We compared the invasiveness and motility among liver epithelial cell
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