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. 2011 Oct;138(4):381–391. doi: 10.1085/jgp.201110660

Figure 4.

Figure 4.

Time course of Ca2+-induced nucleotide concentration changes in RBCs suspended in substrate-free media. Results are representative of three identical experiments with RBCs from two donors containing slightly different initial ATP concentrations (donor 1, 2.01 and 2.11 mmol/Lcw; donor 2, 1.73 mmol/Lcw). The decline in the total nucleotide concentration is attributed to the breakdown of IMP to hypoxanthine at a rate of ∼0.2 mmol/Lch in the present experimental conditions.