Calcium concentration in the ECF or in the lumen of intracellular reticular systems
| Range | 2 to 5 mM |
|---|---|
| Organism | Unspecified |
| Reference | Editor: Dr. Robert A. Meyers, Encyclopedia of Molecular Cell Biology and Molecular Medicine, Joachim Krebs, Calcium Biochemistry, p.136 left column |
| Comments | In the ECF (ExtraCellular Fluid) or in the lumen of intracellular reticular systems, the calcium concentration is millimolar (2–5 mM, of which about 50% is unbound, i.e. corresponds to free Ca2+ concentration), whereas the cytosolic free Ca2+ concentration of a resting cell is about 100 to 300 nM. |
| Entered by | Uri M |
| ID | 107491 |