Reexamination of a cytochrome oxidase model. A noncoupled iron-copper binuclear complex

1984 ◽  
Vol 23 (16) ◽  
pp. 2532-2537 ◽  
Author(s):  
Greg A. Brewer ◽  
Ekk Sinn
Keyword(s):  
Cytochrome Oxidase ◽  
Binuclear Complex ◽  
Iron Copper

Mechanism of dioxygen reduction at the iron-copper binuclear center of cytochrome oxidase; time-resolved resonance raman study

1995 ◽  
Vol 59 (2-3) ◽  
pp. 284
Author(s):  
T. Kitagawa ◽  
T. Ogura ◽  
S. Hirota ◽  
D.A. Proshlyakov ◽  
K. Shinzawa-Itoh ◽  
...  
Keyword(s):  
Cytochrome Oxidase ◽  
Resonance Raman ◽  
Time Resolved ◽  
Dioxygen Reduction ◽  
Iron Copper ◽  
Raman Study ◽  
Binuclear Center

Initial Polymerization Sites Indicated During Mitochondrial Oxidation of Diaminobenzidine after Toluene Treatment

1977 ◽  
Vol 35 ◽  
pp. 408-409
Author(s):  
W. A. Shannon ◽  
M. A. Matlib
Keyword(s):  
Membrane Permeability ◽  
Cytochrome Oxidase ◽  
Rat Liver ◽  
Precise Definition ◽  
Cytochemical Localization ◽  
Oxidative Reaction ◽  
Mitochondrial Oxidation ◽  
Definition Of ◽  
Exogenous Substrates

Numerous studies have dealt with the cytochemical localization of cytochrome oxidase via cytochrome c. More recent studies have dealt with indicating initial foci of this reaction by altering incubation pH (1) or postosmication procedure (2,3). The following study is an attempt to locate such foci by altering membrane permeability. It is thought that such alterations within the limits of maintaining morphological integrity of the membranes will ease the entry of exogenous substrates resulting in a much quicker oxidation and subsequently a more precise definition of the oxidative reaction.The diaminobenzidine (DAB) method of Seligman et al. (4) was used. Minced pieces of rat liver were incubated for 1 hr following toluene treatment (5,6). Experimental variations consisted of incubating fixed or unfixed tissues treated with toluene and unfixed tissues treated with toluene and subsequently fixed.

Fine Structure of Type IV Glycogenosis

1981 ◽  
Vol 39 ◽  
pp. 464-465
Author(s):  
P.K. Simons
Keyword(s):  
Needle Biopsy ◽  
Tissue Concentration ◽  
Inborn Errors ◽  
Rare Type ◽  
Type Iv ◽  
Iron Copper ◽  
Proper Diagnosis ◽  
Type Iv Glycogenosis ◽  
Loss Of Appetite ◽  
Enzymatic Defect

Glycogenosis is defined as any condition in which the tissue concentration of glycogen is increased. There are currently ten recognized variants of glycogenosis that are heritable inborn errors of metabolism. The specific enzymatic defect in each of the variants is known or at least suspected. In all cases, the enzymatic defect prevents the proper metabolism or formation of the glycogen molecule. The clinical and histologic differences between the types of glycogenosis is important to a proper diagnosis after the presence of such a condition is realized. This study was initiated to examine the ultrastructure of the rare Type IV Glycogenosis (Amylopectinosis) of which there is very little morphologic characterization in the literature.Liver tissue was obtained by needle biopsy from a 12-month-old Oriental female who was originally admitted to the hospital after observation of poor development, loss of appetite, and hepatomegaly. The majority of the tissue was fixed for light microscopy in neutral buffered formalin and processed using routine and special staining procedures (reticulin, trichrome, iron, copper, PAS, PAS-diastase and PAS-pectinase.

O activation in cytochrome oxidase and in other heme proteins

1992 ◽  
Vol 1101 (2) ◽  
pp. 192-194
Author(s):  
G BABCOCK ◽  
C VAROTSIS ◽  
Y ZHANG
Keyword(s):  
Cytochrome Oxidase ◽  
Heme Proteins
Sign in / Sign up

Export Citation Format

Share Document