Phosphorylation sites in proteins with likely roles in phosphoinositide metabolism.

<p>All class I phosphorylation sites are shown as squares next to the schematic illustrations of the relevant proteins and their annotated functional domains. PI-PLC was not detected and is shown in light green. Each phosphorylation site is represented by a divided square, the colour of which shows the degree of regulation upon inhibition of PKG by C2 or in the <i>gcβ</i> mutant. Failure to quantify a phosphorylation site with one of the two experimental designs is shown in white.