Cytochrome C (ferro) Singlet oxygen

Giulivi, C.; Sarcansky, M.; Rosenfeld, E.; Boveris, A.
Photochem. Photobiol. 52, 745-751 (1990)

Reaction: Ferrocytochrome C + ¹O₂^* ® products and/or physical quenching
Reference Reaction: DL-Histidine + ¹O₂^* ®
Solvent: H₂O

k = 5.6 × 10⁸(L mol^-1 s^-1), k_reference = 1 × 10⁸(L mol^-1 s^-1), pH = 7.4

Experimental method: Photolysis
Analytical method: oxygen consumption
Data type: Relative value measured by steady state method
Excitation wavelength: 550 nm

Photosensitizer = Rose Bengal dianion; in submitochondria particles.

Peters, G.; Rodgers, M.A.J.
Biochem. Biophys. Res. Commun. 96, 770-776 (1980)

Reaction: Ferrocytochrome C + ¹O₂^* ® products and/or physical quenching
Solvent: CH₃CN, 80%, D₂O, 20%

k = 4.9 × 10⁸(L mol^-1 s^-1)

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly using indicator
Excitation wavelength: 337 nm

Photosensitizer = 2'-Acetonaphthone; Indicator = 1,3-Diphenylisobenzofuran. Added solute (0-6)e-5. [Sensitizer] = 9.4 × 10^-4 (mol L^-1). [Indicator] = 7.8 × 10^-5 (mol L^-1).