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. 2004 Sep 3;87(5):3351–3371. doi: 10.1529/biophysj.104.047449

TABLE 3.

Na buffering parameters

Parameter Value Units*
Kon 0.1 mM−1s−1
Koff 1 s−1
Kd 10 mM
Bmax junction 3.7 mM
Bmax SL 1.65 mM
Bmax cytosol 0 mM
*

All units are mmol/l cytosol. Concentrations in the actual compartments can be calculated assuming 11% of membrane-bound components are in the junctional cleft and 89% are in the SL compartment.