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. 2012 Dec 15;125(24):6185–6197. doi: 10.1242/jcs.121046

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© 2012. Published by The Company of Biologists Ltd

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Fig. 4. — Binding and phosphorylation of cortactin by Src is redox dependent and requires Src C185. (A) Co-immunoprecipitation (IP) of cortactin with Src followed by analysis under reducing (R) and non-reducing (NR) conditions. Asterisks denote equivalent bands in cortactin and Src immunoblots. (B) Co-immunoprecipitation of Src with cortactin followed by analysis under reducing (R) and non-reducing (NR) conditions. Asterisks denote equivalent bands in cortactin and Src immunoblots. (C) Phosphorylation of cortactin by Src in the absence and presence of DTT. (D) Far western analysis of GST-Src SH2 and C185A. (E) Affinity precipitation analysis of FAK and cortactin binding to GST-Src SH2 C185A.