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. 2007 Dec 7;94(6):1954–1970. doi: 10.1529/biophysj.107.116202

TABLE 2.

Toad rod and mouse rod parameters

Mouse rod scenario Toad rod scenario
PDE activation rate (k3) 50 s−1 50 s−1
PDE deactivation rate (k4) 5 s−1 1 s−1
Mean rhodopsin lifetime (τ) 0.080 s 3 s
Max. value of Inline graphic (Inline graphic) 150 150

The PDE deactivation rate and rhodopsin lifetime for the mouse rod scenario are taken from Krispel et al. (35).