It is a calcium-binding protein that serves to regulate photoreceptor guanylate cyclases. As the calcium levels in the cell decline, the protein delinks from its bound calcium ions and activates the guanylate cyclase.
It is a calcium-binding protein that serves to regulate photoreceptor guanylate cyclases. As the calcium levels in the cell decline, the protein delinks from its bound calcium ions and activates the guanylate cyclase.