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C0739

Sigma-Aldrich

Anti-phospho-Cortactin (pTyr421) antibody produced in rabbit

affinity isolated antibody, buffered aqueous glycerol solution

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About This Item

MDL number:
UNSPSC Code:
12352203
NACRES:
NA.41

biological source

rabbit

Quality Level

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous glycerol solution

mol wt

antigen 80-85 kDa

species reactivity

mouse

technique(s)

immunocytochemistry: suitable
western blot: 1:1,000

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

phosphorylation (pTyr421)

Gene Information

mouse ... Cttn(13043)

Related Categories

General description

Cortactin is encoded by the CTTN gene on chromosome 11 in humans. It is a cytoskeleton protein that facilitates assembly of cortical actin. It is expressed in most adherent cells and is a prominent substrate of protein-tyrosine kinase Src.

Immunogen

synthetic phosphopeptide derived from the region of mouse cortactin that is phosphorylated on tyrosine 421.

Application

Anti-phospho-Cortactin (pTyr421) antibody produced in rabbit is suitable for immunocytochemistry and western blotting at a working dilution of 1:1,000

Biochem/physiol Actions

Cortactin 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. The overexpression of cortactin causes osteosarcoma carcinogenesis and along with FAK increases the risk of oral premalignant lesions.

Physical form

Solution in Dulbecco′s phosphate buffered saline (without Mg2+ and Ca2+), pH 7.3 (+/- 0.1), 50% glycerol with 1.0 mg/mL bovine serum albumin (IgG and protease free) and 0.05% 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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Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Maxwell D Weidmann et al.
Scientific reports, 6, 36142-36142 (2016-11-09)
Invadopodia, actin-based protrusions of invasive carcinoma cells that focally activate extracellular matrix-degrading proteases, are essential for the migration and intravasation of tumor cells during dissemination from the primary tumor. We have previously shown that cortactin phosphorylation at tyrosine residues, in
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
Tomer Meirson et al.
Oncotarget, 9(31), 22158-22183 (2018-05-19)
Metastatic dissemination of cancer cells from the primary tumor and their spread to distant sites in the body is the leading cause of mortality in breast cancer patients. While researchers have identified treatments that shrink or slow metastatic tumors, no
Zhao Gang et al.
Clinical laboratory, 59(11-12), 1343-1352 (2014-01-15)
Cortactin is an important regulator involved in invasion and migration of tumor cells. Although the relationship between cortactin and tumor invasion has been reported, it lacks follow-up evidence to support the forecasting role of cortactin for HCC prognosis. The aim
Cecilia Folio et al.
Cancer biomarkers : section A of Disease markers, 10(1), 35-41 (2012-02-03)
The cortactin (CTTN) gene has been found, by transcriptomic profiling, to be overexpressed in pediatric osteosarcoma. The location of CTTN at 11q13 and the role of cortactin in cytoskeleton restructuring make CTTN of interest as a potential biomarker for osteosarcoma.

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