Studies on Microsomal Cytochromes 



475 



P 1 1-*— Reduced - Reduced + DPNH 

 %' I b (Azide + Succinate In botti) 



Oxidized -Reduced 

 (Azide ■^ Succinate) 



— I — r 

 500 



T 1 1 1 1 1 1 1 1 1 1 



550 600 



A{m>i) 



Fig. 3. Oxidized minus succinate-reduced (solid trace) and succinate-reduced 

 minus DPNH-reduced low temperature spectra for liver cell suspensions. 

 (Expt. 976-1.) 



423.5 nyj 



400 



T 

 A0.D.=a005 



± 



450 



500 

 ;\(rnM) 



T— T — T — I — r 

 550 



T 1 1 1 1 



600 



Fig, 4. Room temperature difference spectrum for succinate and DPNH 

 reduced liver cell suspension. (Expt. 979.) 



