Comparison of isotropic calcium signals from intact frog muscle fibers injected with Arsenazo III or Antipyrylazo III.

@article{Baylor1983ComparisonOI,
  title={Comparison of isotropic calcium signals from intact frog muscle fibers injected with Arsenazo III or Antipyrylazo III.},
  author={Stephen M Baylor and M. Emilia Quinta-Ferreira and C. S. Hui},
  journal={Biophysical journal},
  year={1983},
  volume={44 1},
  pages={107-12}
}
Intact single skeletal muscle fibers were micro-injected with either of the metallochromic indicator dyes Arsenazo III or Antipyrylazo III, and dye-related Ca2+ signals from each were measured during a twitch. In comparison with the Arsenazo III Ca2+ signal, the signal from Antipyrylazo III had three favorable features: (a) it was temporally faster, (b) its spectral dependence agreed with a cuvette calibration, and (c) its kinetic behavior was consistent with a single Ca2+ -dye stoichiometry… CONTINUE READING
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