Abstract
Summary
ATP has been identified in TCA filtrates of epiphyseal cartilage of rat tibiae. The levels present are approximately those found in kidney, liver, and brain. The disappearance of ATP from cartilage slices incubated in basal solution is retarded initially by small amount of calcium ion. This may account in part for the prevention by calcium of the deterioration of the calcifying mechanism as reported earlier (14). A similar correlation does not occur in the case of glycogen.
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