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Ca2+-CaM Regulates Binding of P1a to F-actin
The SAXS-derived tentative model of the P1aABD/CaM complex was superimposed to the CH1 domain of α-actinin (red), which is bound to F-actin (light gray, PDB: 3LUE). The steric clash between the P1aABD/CaM complex and F-actin is shown by purple arrows.
