Results 31 to 40 of about 20,306,851 (378)

Oxygen Activation and Energy Conservation by Cytochrome c Oxidase

open access: yesChemical Reviews, 2018
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

open access: yesNature Structural & Molecular Biology, 2018
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]

open access: yes, 1988
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

open access: yesCell Death and Disease, 2018
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]

open access: yesPLoS ONE, 2017
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.

open access: yesJournal of Biological Chemistry, 1992
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

open access: yesFrontiers in Physiology, 2020
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]

open access: yes, 1971
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

Dual role of mitochondria in producing melatonin and driving GPCR signaling to block cytochrome c release

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2017
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]

open access: yesPLoS ONE, 2011
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

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