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. 1984 Apr 20;224(4646):292-4.
doi: 10.1126/science.6710144.

Spatially nonuniform changes in intracellular calcium ion concentrations

H H Harary, J E Brown

Spatially nonuniform changes in intracellular calcium ion concentrations

H H Harary et al. Science. .

Abstract

The spatial variation of changes in intracellular calcium ions were studied with a one-dimensional scanning microphotometer. Changes in intracellular calcium were measured with a metallochromic dye, arsenazo III. Both the magnitude and the kinetics of changes in calcium were dramatically different in different regions of a cell. In Limulus ventral photoreceptors the maximum change was probably restricted to the rhabdomeric lobe.

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