Mitochondrial COA7 is a heme-binding protein with disulfide reductase activity, which acts in the early stages of complex IV assembly

LE Formosa, S Maghool, AJ Sharpe… - Proceedings of the …, 2022 - National Acad Sciences
Cytochrome c oxidase (COX) assembly factor 7 (COA7) is a metazoan-specific assembly
factor, critical for the biogenesis of mitochondrial complex IV (cytochrome c oxidase) …

Structural and functional characterization of the mitochondrial complex IV assembly factor Coa6

S Maghool, NDG Cooray, DA Stroud… - Life science …, 2019 - life-science-alliance.org
Assembly factors play key roles in the biogenesis of many multi-subunit protein complexes
regulating their stability, activity, and the incorporation of essential cofactors. The human …

[HTML][HTML] COA6 facilitates cytochrome c oxidase biogenesis as thiol-reductase for copper metallochaperones in mitochondria

D Pacheu-Grau, M Wasilewski, S Oeljeklaus… - Journal of molecular …, 2020 - Elsevier
The mitochondrial cytochrome c oxidase, the terminal enzyme of the respiratory chain,
contains heme and copper centers for electron transfer. The conserved COX2 subunit …

hCOA3 stabilizes cytochrome c oxidase 1 (COX1) and promotes cytochrome c oxidase assembly in human mitochondria

P Clemente, S Peralta, A Cruz-Bermudez… - Journal of Biological …, 2013 - ASBMB
Cytochrome c oxidase (COX) or complex IV of the mitochondrial respiratory chain plays a
fundamental role in energy production of aerobic cells. In humans, COX deficiency is the …

COA6 is structurally tuned to function as a thiol-disulfide oxidoreductase in copper delivery to mitochondrial cytochrome c oxidase

S Soma, MN Morgada, MT Naik, A Boulet, AA Roesler… - Cell reports, 2019 - cell.com
In eukaryotes, cellular respiration is driven by mitochondrial cytochrome c oxidase (CcO), an
enzyme complex that requires copper cofactors for its catalytic activity. Insertion of copper …

Copper supplementation restores cytochrome c oxidase assembly defect in a mitochondrial disease model of COA6 deficiency

A Ghosh, PP Trivedi, SA Timbalia… - Human molecular …, 2014 - academic.oup.com
Mitochondrial respiratory chain biogenesis is orchestrated by hundreds of assembly factors,
many of which are yet to be discovered. Using an integrative approach based on clues from …

A mutation in the FAM36A gene, the human ortholog of COX20, impairs cytochrome c oxidase assembly and is associated with ataxia and muscle hypotonia

R Szklarczyk, BFJ Wanschers… - Human molecular …, 2013 - academic.oup.com
The mitochondrial respiratory chain complex IV (cytochrome c oxidase) is a multi-subunit
enzyme that transfers electrons from cytochrome c to molecular oxygen, yielding water. Its …

What Role Does COA6 Play in Cytochrome C Oxidase Biogenesis: A Metallochaperone or Thiol Oxidoreductase, or Both?

S Maghool, MT Ryan, MJ Maher - International journal of molecular …, 2020 - mdpi.com
Complex IV (cytochrome c oxidase; COX) is the terminal complex of the mitochondrial
electron transport chain. Copper is essential for COX assembly, activity, and stability, and is …

Human mitochondrial cytochrome c oxidase assembly factor COX18 acts transiently as a membrane insertase within the subunit 2 maturation module

M Bourens, A Barrientos - Journal of Biological Chemistry, 2017 - ASBMB
Defects in mitochondrial cytochrome c oxidase or respiratory chain complex IV (CIV)
assembly are a frequent cause of human mitochondrial disorders. Specifically, mutations in …

Mitochondrial disease genes COA6, COX6B and SCO2 have overlapping roles in COX2 biogenesis

A Ghosh, AT Pratt, S Soma, SG Theriault… - Human molecular …, 2016 - academic.oup.com
Biogenesis of cytochrome c oxidase (CcO), the terminal enzyme of the mitochondrial
respiratory chain, is a complex process facilitated by several assembly factors. Pathogenic …