Cortactin Mouse, Unlabeled, Clone: 30, BD

Descripción

Cortactin is a protein which is represented by two structurally related isoforms of 80 kDa and 85 kDa. Sequence analysis of this protein reveals the presence of a carboxy-terminal SH3 domain, as well as six internal tandem repeats of a 37 amino acid sequence. It is able to bind to F-actin via this N-terminal repeat region, and colocalizes with actin in the cell. Cortactin was originally described as a protein that is tyrosine-phosphorylated in cells transformed by the src oncogene, in which it localizes to rosettes or podosomes. It has since been shown that other stimuli, such as bacterial invasion, treatment with growth factors, and integrin-mediated cell adhesion, are also capable of inducing phosphorylation of cortactin. Some additional evidence indicates that cortactin may actually be a substrate of syk, with src acting as an upstream signaling molecule.