
doi: 10.1007/bf02279213
pmid: 5748356
The binding of calcium by chondroitin sulfate C was studied by employing biological and physicochemical methods for the quantitative determination of ionic calcium. Mean values for logKj, the logarithm of the uncorrected formation constant for a calcium-chondroitin sulfate complex, were 1.64 with the frog heart technique, 1.55 with the murexide method, 1.39 with ultrafiltration and 1.04 with the calcium selective electrode. The magnitude of these values suggests that chondroitin sulfate has a relatively high binding capacity for calcium, but calculated values for an exchange parameterKp indicate that calcium has a low affinity for the polysaccharide.
Perfusion, Viscosity, Sharks, Animals, Calcium, Heart, Anura, Chondroitin, Filtration
Perfusion, Viscosity, Sharks, Animals, Calcium, Heart, Anura, Chondroitin, Filtration
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