Results 11 to 20 of about 19,855,151 (220)

Comparing substrate specificity between cytochrome c maturation and cytochrome c heme lyase systems for cytochrome c biogenesis [PDF]

open access: yesMetallomics, 2011
Hemes c are characterized by their covalent attachment to a polypeptide via a widely conserved CXXCH motif. There are multiple biological systems that facilitate heme c biogenesis. System I, the cytochrome c maturation (CCM) system, is found in many bacteria and is commonly employed in the maturation of bacterial cytochromes c in Escherichia coli-based
Jesse G, Kleingardner, Kara L, Bren
openaire   +3 more sources

MITRAC7 Acts as a COX1-Specific Chaperone and Reveals a Checkpoint during Cytochrome c Oxidase Assembly [PDF]

open access: yesCell Reports, 2015
Cytochrome c oxidase, the terminal enzyme of the respiratory chain, is assembled from mitochondria- and nuclear-encoded subunits. The MITRAC complex represents the central assembly intermediate during this process as it receives imported subunits and ...
Sven Dennerlein   +8 more
doaj   +2 more sources

Biogenesis and assembly of eukaryotic cytochrome c oxidase catalytic core

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 2012
Eukaryotic cytochrome c oxidase (COX) is the terminal enzyme of the mitochondrial respiratory chain. COX is a multimeric enzyme formed by subunits of dual genetic origin which assembly is intricate and highly regulated. The COX catalytic core is formed by three mitochondrial DNA encoded subunits, Cox1, Cox2 and Cox3, conserved in the bacterial enzyme ...
Soto, Ileana C.   +3 more
openaire   +3 more sources

Composition and function of cytochrome c biogenesis System II [PDF]

open access: yesThe FEBS Journal, 2011
Organisms employ one of several different enzyme systems to mature cytochromes c. The biosynthetic process involves the periplasmic reduction of cysteine residues in the heme c attachment motif of the apocytochrome, transmembrane transport of heme b and stereospecific covalent heme attachment via thioether bonds. The biogenesis System II (or Ccs system)
Jörg, Simon, Lars, Hederstedt
openaire   +3 more sources

In vitro studies on cytochrome c biogenesis [PDF]

open access: yes, 2003
C-type cytochromes are essential for almost all organisms and are mainly involved in electron transport; they are characterised by the covalent attachment of heme to protein through two thioether bonds to a CXXCH peptide motif. This thesis describes the development of in vitro systems to establish chemical aspects of the process of cytochrome c ...
Daltrop, O, Daltrop, Oliver
core   +4 more sources

Structure-function analysis of the heme-binding WWD domain in the bacterial holocytochrome c synthase, CcmFH

open access: yesmBio, 2023
Heme trafficking is a fundamental biological process, yet its direct study has been hampered due to heme’s tight intracellular regulation, heme cytotoxicity, and the transient nature of trafficking.
Amber L. Grunow   +3 more
doaj   +1 more source

Reperfusion promotes mitochondrial biogenesis following focal cerebral ischemia in rats. [PDF]

open access: yesPLoS ONE, 2014
BACKGROUND AND PURPOSE: Reperfusion after transient cerebral ischemia causes severe damage to mitochondria; however, little is known regarding the continuous change in mitochondrial biogenesis during reperfusion.
Yuying Xie   +4 more
doaj   +1 more source

Bacterial cytochromes c biogenesis. [PDF]

open access: yesGenes & Development, 1992
We report the primary sequence analyses of two loci, hel and ccl, whose gene products are required specifically for the biogenesis of c-type cytochromes in the Gram-negative photosynthetic bacterium Rhodobacter capsulatus. Genetic and molecular analyses show that the hel locus contains at least four genes, helA, helB, helC, and orf52, and the ccl locus
D L, Beckman, D R, Trawick, R G, Kranz
openaire   +2 more sources

Brain Region Specificity of Mitochondrial Biogenesis and Bioenergetics Response to Nrf2 Knockdown: A Comparison Among Hippocampus, Prefrontal Cortex and Amygdala of Male Rat Brain [PDF]

open access: yesBrazilian Archives of Biology and Technology, 2017
Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) has been identified as the well-known coordinator of intracellular antioxidant defense system. Herein, we aimed to evaluate the effects of Nrf2 silencing on mitochondrial biogenesis markers peroxisome ...
Solmaz Khalifeh   +5 more
doaj   +4 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

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