Oxygen Activation and Energy Conservation by Cytochrome c Oxidase
This review focuses on the type A cytochrome c oxidases (CcO), which are found in all mitochondria and also in several aerobic bacteria. CcO catalyzes the respiratory reduction of dioxygen (O2) to water by an intriguing mechanism, the details of which ...
M. Wikström, K. Krab, Vivek Sharma
semanticscholar +1 more source
Structure of yeast cytochrome c oxidase in a supercomplex with cytochrome bc1
Cytochrome c oxidase (complex IV, CIV) is known in mammals to exist independently or in association with other respiratory proteins to form supercomplexes (SCs).
Andrew M. Hartley+7 more
semanticscholar +1 more source
A mutant of Neurospora crassa deficient in cytochrome c heme lyase activity cannot import cytochrome c into mitochondria [PDF]
The nuclear cyt-2-1 mutant of Neurospora crassa is characterized by a gross deficiency of cytochrome c (Bertrand, H., and Collins, R. A. (1978) Mol. Gen. Genet. 166, 1-13).
Drygas, Mariola E.+4 more
core +1 more source
Cytochrome c speeds up caspase cascade activation by blocking 14-3-3ε-dependent Apaf-1 inhibition
Apoptosis is a highly regulated form of programmed cell death, essential to the development and homeostasis of multicellular organisms. Cytochrome c is a central figure in the activation of the apoptotic intrinsic pathway, thereby activating the caspase ...
Carlos A. Elena-Real+8 more
semanticscholar +1 more source
Differentiation and cell density upregulate cytochrome c levels in megakaryoblastic cell lines: Implications for analysis of CYCS-associated thrombocytopenia. [PDF]
Mutations in the cytochrome c gene (CYCS) cause autosomal dominant thrombocytopenia by an unknown mechanism. While attempting to generate megakaryoblastic cell lines exogenously expressing cytochrome c variants, we discovered that endogenous cytochrome c
Lily Ong+2 more
doaj +1 more source
Cytochrome c binding affects the conformation of cytochrome a in cytochrome c oxidase.
Second derivative absorption spectroscopy has been used to assess the effects of complex formation between cytochrome c and cytochrome c oxidase on the conformation of the cytochrome a cofactor. When ferrocytochrome c is complexed to the cyanide-inhibited reduced or mixed valence enzyme, the conformation of ferrocytochrome a is affected.
D Sherman, S R Lynch, R A Copeland
openaire +3 more sources
Rcf1 Modulates Cytochrome c Oxidase Activity Especially Under Energy-Demanding Conditions
The mitochondrial respiratory chain is assembled into supercomplexes. Previously, two respiratory supercomplex-associated proteins, Rcf1 and Rcf2, were identified in Saccharomyces cerevisiae, which were initially suggested to mediate supercomplex ...
Hannah Dawitz+5 more
doaj +1 more source
Functional and Biogenetical Heterogeneity of the Inner Membrane of Rat-Liver Mitochondria [PDF]
Rat liver mitochondria were fragmented by a combined technique of swelling, shrinking, and sonication. Fragments of inner membrane were separated by density gradient centrifugation.
Allmann D. W.+50 more
core +1 more source
Significance This paper describes the finding that mitochondria synthesize and release melatonin and have their selective G protein-coupled receptor (GPCR) in the outer membrane.
Y. Suofu+35 more
semanticscholar +1 more source
The anti-apoptotic Bcl-x(L) protein, a new piece in the puzzle of cytochrome c interactome. [PDF]
A structural model of the adduct between human cytochrome c and the human anti-apoptotic protein Bcl-x(L), which defines the protein-protein interaction surface, was obtained from solution NMR chemical shift perturbation data.
Ivano Bertini+4 more
doaj +1 more source