Possible Interaction: Gelatin and Calcium Supplement

“At both low and high concentrations of Ca++ (defined as a ratio of Ca++/EGTA in the extraction medium), gelation is inhibited.”

“The results indicate that there are at least three mechanisms by which calcium can influence the evolution of the polymer system on the path to gelation and clotting.”

“The protein was a single polypeptide chain with an average molecular weight of 90,000 and it bound to actin and inhibited its gelation at concentration from 10−6–10−7M of free calcium.”

“The saturated modulus decreased with decreasing calcium ion concentration in the range from 4.5 to 9 mM. The rate constant of gelation , Kg decreased linearly with decreasing calcium ion concentration.”

“At low concentrations of gelactin, the gelatin of actin exhibits a bell-shaped dependency on free calcium ion concentration, being stimulated between pCa 8 and 6 and inhibited at pCa below 5.5, while at high gelactin concentrations the calcium sensitivity of actin gelation is apparently abolished.”

“ Gelation of F-actin can be induced by the addition of the purified protein, and this can be inhibited by Ca2+ (half maximal inhibition, 2 microM).”

“ Calcium in micromolar concentrations prevents gelation of crude macrophage cytoplasmic extracts4, providing a possible link to abundant indirect evidence implicating calcium in the regulation of locomotion, secretion and endocytosis5.”

“ Calcium ions and KCl above 0.1 M inhibited gelation.”

“ Calcium cation triggers and accelerates the gelation of high methoxy pectin”

“Furthermore, gelatine causes an increase in volume of the bottom phase which separates in aqueous solutions of ATP, noradrenaline and calcium.”