Calmodulin ( 6 ) is activated by calcium ions
Calmodulin ( calcium modulated protein ) is a messenger protein found in the cells of higher organisms ( Eukaryotic cells ) Ca²⁺ been a secondary messenger activates Calmodulin by binding itself to it.
adenylyl and cyclase are not activated by calcium ion they are activated by bi-carbonate ions instead while Ca²⁺ bond calmodulin activates a series of enzymes.
Hence we can conclude that Calmodulin is activated by calcium ions
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