Results 91 to 100 of about 146,105 (308)

Spatiotemporal Control of Formation of Dynamic Protein Fiber Assemblies via Photophysical Effects of a Focused Laser Beam

open access: yesAdvanced Science, EarlyView.
Tightly focused laser irradiation can accumulate tubulin proteins at/around the laser focus, which leads to the formation of highly ordered microtubule assemblies. The assemblies can exhibit various dynamic behaviors such as radial motion, bundling, and flagella‐like rotation with motor protein and chemical energy, highlighting as a unique tool for ...
Hiroshi Y. Yoshikawa   +16 more
wiley   +1 more source

Mechanistic Understanding of Protein–MOF Integration Through Surfactant‐Driven Interfacial Design

open access: yesAdvanced Science, EarlyView.
This study reveals how surfactant‐driven interfacial design governs the assembly and stability of protein@MOF composites. Using lipid‐based nonionic surfactants, we modulate protein–MOF interactions to improve encapsulation efficiency, MOF crystallization, and catalytic performance.
Ehsan Rashidniyaghi   +4 more
wiley   +1 more source

Sulfite oxidase activity of cytochrome c: Role of hydrogen peroxide

open access: yesBiochemistry and Biophysics Reports, 2016
In humans, sulfite is generated endogenously by the metabolism of sulfur containing amino acids such as methionine and cysteine. Sulfite is also formed from exposure to sulfur dioxide, one of the major environmental pollutants.
Murugesan Velayutham   +3 more
doaj   +1 more source

A novel mutation in the Surf1 gene in a child with leigh disease, peripheral neuropathy, and cytochrome-c oxidase deficiency

open access: yes, 2002
We report a 16-month-old boy with psychomotor regression, muscle hypotonia, peripheral neuropathy, and lactic acidosis. Brain magnetic resonance imaging showed a bilateral abnormal signal in the substantia nigra and in the subthalamic nucleus, suggestive
Minetti C.   +9 more
core   +1 more source

Intrinsically Mitochondria‐Targeting Nanozyme via Coordination‐Assembly of Natural Quercetin for Cascade Antioxidant Therapy of Cerebral Ischemia‐Reperfusion Injury

open access: yesAdvanced Science, EarlyView.
This study uncovers that quercetin naturally targets mitochondria. By coordinating quercetin with Fe3+, we engineer an ultrasmall cascade nanozyme (MCN) with superoxide dismutase‐catalase activities. MCN crosses the damaged blood–brain barrier, scavenges mitochondrial ROS, prevents mitochondrial DNA leakage, and blocks the cGAS‐STING pathway, thereby ...
Wenxuan Zheng   +14 more
wiley   +1 more source

Evolution of the Couple Cytochrome c and Cytochrome c Oxidase in Primates [PDF]

open access: yes, 2012
Mitochondrial energy metabolism has been affected by a broad set of ancient and recent evolutionary events. The oldest example is the endosymbiosis theory that led to mitochondria and a recently proposed example is adaptation to cold climate by anatomically modern human lineages.
Denis, Pierron   +4 more
openaire   +2 more sources

Molecular dynamics simulations and hydrogen-bonded network dynamics of cytochrome c oxidase from Paracoccus denitrificans

open access: yes, 2004
Cytochrome c oxidase is the terminal enzyme in the respiratory chain of mitochondria and aerobic bacteria. This enzyme ultimately couples electron transfer from cytochrome c to an oxygen molecule with proton translocation across the inner mitochondrial ...
Olkhova, E., Olkhova, Elena
core  

Targeting DNGR‐1 with Fangchinoline Elevates Dendritic Cell Antigen Cross‐Presentation‐Mediated Antitumor Immunity in Melanoma

open access: yesAdvanced Science, EarlyView.
Fangchinoline is identified as a small‐molecule DNGR‐1 modulator that enhances dendritic‐cell cross‐presentation of tumor antigens. By engaging DNGR‐1 and activating Syk–Nox2 signaling, it promotes phagosomal ROS, antigen escape, MHC‐I presentation, and CD8+ T‐cell priming, thereby strengthening antitumor immunity and sensitizing tumors to PD‐1 ...
Yuan Liao   +19 more
wiley   +1 more source

Functional and structural studies on the Atmungsferment Cytochrome c oxidase from Paracoccus denitrificans

open access: yes, 2011
Cytochrome c oxidase (CcO), also called Complex IV of the aerobic respiratory chain, is located in the plasma membrane of prokaryotes and in the inner mitochondrial membrane of eukaryotes.
Angerer, Heike
core  

Thermal inactivation and conformational lock studies on glucose oxidase [PDF]

open access: yes
In this study, the dissociative thermal inactivation and conformational lock theories are applied for the homodimeric enzyme glucose oxidase (GOD) in order to analyze its structure.
امانی, مجتبی   +4 more
core   +1 more source

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