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Atomic number Z represents the number of protons per atom. Mass number Z + N is equal to the number of protons Z plus the number of neutrons N present in the nuclei. Mass numbers of the most abundant isotopes are given in order of decreasing abundance. For example, Cadmium Cd-48 mass ...
Indeed, an important advantage of the highly efficient Twitch family, a second type of FRET sensor, is that they have two calcium ion-binding sites per molecule, due to the use of TnC from the toadfish, Opsanus tau3. The reduced number of Ca2+-binding sites in GECIs is thought to ...