Results 21 to 30 of about 40,950,057 (342)

Genetically Encoded Fluorescent Probe for Detection of Heme-Induced Conformational Changes in Cytochrome c

open access: yesBiosensors, 2023
Cytochrome c (Cytc) is a key redox protein for energy metabolism and apoptosis in cells. The activation of Cytc is composed of several steps, including its transfer to the mitochondrial membrane, binding to cytochrome c heme lyase (CCHL) and covalent ...
Mehmet Yunus Genceroglu   +3 more
doaj   +1 more source

Early steps in mitochondrial protein import [PDF]

open access: yes, 1990
The process of insertion of precursor proteins into mitochondrial membranes was investigated using a hybrid protein (pSc1-c) that contains dual targeting information and, at the same time, membrane insertion activity.
Stuart, Rosemary A.   +2 more
core   +1 more source

Cytochrome c and superoxide [PDF]

open access: yesJBIC Journal of Biological Inorganic Chemistry, 2013
Wegerich et al. (J. Biol. Inorg. Chem. 18:429-440, 2013), working with singly modified human cytochromes c, claim to have found a new mechanism for the reduction of iron(III) cytochrome c by superoxide. I show that electron transfer by way of the solvent-accessible haem edge - a mechanism not considered by Wegerich et al.
openaire   +4 more sources

Mitochondrial DNA variation in the endangered fish Dawkinsia tambraparniei (Actinopterygii: Cypriniformes: Cyprinidae) from southern Western Ghats, India [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2014
Background. Dawkinsia tambraparniei (Silas, 1954) is confined to an area not exceeding 100 km2 within a single watershed—the Tamiraparani River, southern Western Ghats, India.
K. Kannan   +3 more
doaj   +3 more sources

Unfolded States of Heme Proteins [PDF]

open access: yes, 2010
Cytochromes adopt discrete structures when the heme cofactor is present. Since the heme provides crucial contacts in the native protein, this hydrophobic prosthetic group plays an important role in the folding mechanism and introduces interesting ...
Pribisko Yen, Melanie Anne
core   +1 more source

Structure-Function Analysis of the Bifunctional CcsBA Heme Exporter and Cytochrome c Synthetase

open access: yesmBio, 2018
Although intracellular heme trafficking must occur for heme protein assembly, only a few heme transporters have been unequivocally discovered and nothing is known about their structure or mechanisms.
Molly C. Sutherland   +5 more
doaj   +1 more source

Import of cytochrome c into mitochondria. Cytochrome c heme lyase [PDF]

open access: yesEuropean Journal of Biochemistry, 1987
The import of cytochrome c into mitochondria can be resolved into a number of discrete steps. Here we report on the covalent attachment of heme to apocytochrome c by the enzyme cytochrome c heme lyase in mitochondria from Neurospora crassa. A new method was developed to measure directly the linkage of heme to apocytochrome c. This method is independent
D W, Nicholson, H, Köhler, W, Neupert
openaire   +2 more sources

Damage to proteins by peroxidized lipids

open access: yesJournal of Lipid Research, 1963
The purpose of this research was to determine the mechanism of damage to protein by the free radical intermediates formed during the peroxidation of lipids. The reaction system consisted of linolenic acid, cytochrome c, and oxygen.
I.D. Desai, A.L. Tappel
doaj   +1 more source

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

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

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