Article
Global consequences of activation loop phosphorylation on protein kinase A.
The Journal of biological chemistry - 5 Feb 2010
Steichen Jon M, Iyer Ganesh H, Li Sheng, Saldanha S Adrian, Deal Michael S, Woods Virgil L, Taylor Susan S
Abstract excerpt
Phosphorylation of the activation loop is one of the most common mechanisms for regulating protein kinase activity. The catalytic subunit of cAMP-dependent protein kinase autophosphorylates Thr(197) in the activation loop when expressed in Escherichia coli. Although mutation of Arg(194) to Ala prevents autophosphorylation, phosphorylation of Thr(197) can still be achieved by a heterologous protein kinase,...
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