Results 31 to 40 of about 365,101 (261)

Accelerated Evolution of Cytochrome c in Higher Primates, and Regulation of the Reaction between Cytochrome c and Cytochrome Oxidase by Phosphorylation

open access: yesCells, 2022
Cytochrome c (Cc) underwent accelerated evolution from the stem of the anthropoid primates to humans. Of the 11 amino acid changes that occurred from horse Cc to human Cc, five were at Cc residues near the binding site of the Cc:CcO complex. Single-point
Sue Ellen Brand   +10 more
doaj   +1 more source

ABTS oxidation reaction as a model of cytochrome c-driven electron transfer [PDF]

open access: yesThe Ukrainian Biochemical Journal
Cytochrome c, as an electron carrier within the mitochondria, plays a crucial role in the electron transport chain. To meet the demand for rapid methods that assess the electron transport properties of cytochrome c, we used the electron donor 2,2′-azino ...
F. Gudratova   +4 more
doaj   +1 more source

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

Cytochrome C Oxidase Deficiency and Respiratory Distress

open access: yesPediatric Neurology Briefs, 1989
A newborn male presenting with severe respiratory insufficiency, generalized muscle weakness, and lactic acidemia is reported from the Department of Pediatrics, Nagasaki University School of Medicine, Japan.
J Gordon Millichap
doaj   +1 more source

Cholate Disrupts Regulatory Functions of Cytochrome c Oxidase

open access: yesCells, 2021
Cytochrome c oxidase (CytOx), the oxygen-accepting and rate-limiting enzyme of mitochondrial respiration, binds with 10 molecules of ADP, 7 of which are exchanged by ATP at high ATP/ADP-ratios.
Rabia Ramzan   +4 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Complexation of CcmB with CcmACD safeguards heme translocation for cytochrome c maturation

open access: yesmLife
Cytochrome c maturation (CCM), a posttranslational modification involving covalent attachment of heme to polypeptides (apocyt c), is essential for the activity and cellular function of cytochromes c.
Yuanyou Xu   +6 more
doaj   +1 more source

CYC1 Silencing Sensitizes Osteosarcoma Cells to TRAIL-Induced Apoptosis

open access: yesCellular Physiology and Biochemistry, 2014
Aims: Osteosarcoma (OS) is an aggressive bone malignancy with poor prognosis. Many OS cells are resistant to apoptotic induction by tumor necrosis factor-related apoptosis inducing ligand (TRAIL).
Guodong Li   +9 more
doaj   +1 more source

NapB Restores cytochrome c biosynthesis in bacterial dsbD-deficient mutants

open access: yesCommunications Biology, 2022
The DsbD protein is normally required for cytochrome c maturation (Ccm) in bacteria. With cytochrome c-rich Shewanella oneidensis as the research model, NapB, the small subunit of the nitrate reductase which is a cytochrome c per se, was found to ...
Kailun Guo   +5 more
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

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