Results 81 to 90 of about 40,950,057 (342)

Underground Signals: The Ecological Power of Root Volatiles

open access: yesAdvanced Science, EarlyView.
Root volatiles mediate rhizosphere chemical communication, shaping interactions among plants, microbes, herbivores, and natural enemies. Their production, transport, and perception underpin ecological adaptation, multitrophic interactions, and plant resilience, offering opportunities for sustainable crop protection, resilient agroecosystems, and ...
Xueyao Cao   +31 more
wiley   +1 more source

Cytochrome C catalyzed oxygen tolerant atom-transfer radical polymerization

open access: yesBioresources and Bioprocessing, 2022
Atom-transfer radical polymerization (ATRP) is a well-known technique for controlled polymer synthesis. However, the ATRP usually employed toxic heavy metal ionas as the catalyst and was susceptible to molecular oxygen, which made it should be conducted ...
Peng-Cheng Xie   +7 more
doaj   +1 more source

Substratsbindung ist nicht immer mit Katalyse verbunden: interne Regulation im Cytochrome-bc1-Komplex aus Paracoccus denitrificans [PDF]

open access: yes, 2011
The ubiquinol:cytochrome c oxidoreductase is a key component of several aerobic respiratory chains in different organisms. It is an integral membrane protein complex, made up of three catalytic subunits (cytochrome b, cytochrome c1 and Rieske iron ...
Castellani, Michela
core  

CNTN2 Deficiency Disrupts Ascending Auditory Neuroglial Interactions and Redox Homeostasis in Neural Presbycusis

open access: yesAdvanced Science, EarlyView.
. ABSTRACT Neural presbycusis disrupts auditory timing and speech perception, yet its molecular basis remains poorly understood. This study identifies Cntn2 as the Ranvier's nodal molecule significantly downregulated in aged auditory nerves. Cntn2 heterozygous knockout (Cntn2+/−) mice showed elevated auditory brainstem response thresholds and prolonged
Penghui Chen   +8 more
wiley   +1 more source

PINK1 mutants associated with recessive Parkinson’s disease are defective in inhibiting mitochondrial release of cytochrome c

open access: yesNeurobiology of Disease, 2007
Mutations in PTEN-induced kinase 1 (PINK1) gene cause recessive familial type 6 of Parkinson’s disease (PARK6). We investigated molecular mechanisms underlying PINK1 neuroprotective function and PARK6 mutation-induced loss of PINK1 function ...
Hung-Li Wang   +7 more
doaj   +1 more source

Early Retinal UCHL1 Dysregulation Coupled With Synaptic Loss Reflects Alzheimer's Disease Severity

open access: yesAdvanced Science, EarlyView.
This study identifies synapse‐enriched deubiquitinase UCHL1 as an early Aβ‐responsive regulator of retinal synaptopathy in Alzheimer's disease. Retinal UCHL1 loss accompanies excitatory synapse degeneration, p75NTR activation, and neuroinflammation, and predicts Braak stage and cognitive decline. Aβ42 fibrils trigger synaptic and UCHL1 depletion before
Altan Rentsendorj   +25 more
wiley   +1 more source

Perturbation of Cytochrome c Maturation Reveals Adaptability of the Respiratory Chain in Mycobacterium tuberculosis

open access: yesmBio, 2013
Mycobacterium tuberculosis depends on aerobic respiration for growth and utilizes an aa3-type cytochrome c oxidase for terminal electron transfer. Cytochrome c maturation in bacteria requires covalent attachment of heme to apocytochrome c, which occurs ...
Jennifer L. Small   +5 more
doaj   +1 more source

Cytochrome c binding affects the conformation of cytochrome a in cytochrome c oxidase.

open access: yesJournal of Biological Chemistry, 1992
Second derivative absorption spectroscopy has been used to assess the effects of complex formation between cytochrome c and cytochrome c oxidase on the conformation of the cytochrome a cofactor. When ferrocytochrome c is complexed to the cyanide-inhibited reduced or mixed valence enzyme, the conformation of ferrocytochrome a is affected.
S R, Lynch, D, Sherman, R A, Copeland
openaire   +2 more sources

Delivery of nitric oxide for analysis of the function of cytochrome c'

open access: yes, 2008
On delivery of nitric oxide (NO) to protein samples (e.g., cytochrome c'), for spectroscopic experiments it is important to avoid exposure to oxygen and to remove contaminants from the NO gas.
Lindsay J. Cole   +5 more
core   +1 more source

Evolutionary Approaches to Study Cytochrome c Peroxidase

open access: yesCHIMIA, 2001
Directed molecular evolution of enzymes and proteins has emerged as an extremely powerful method to create proteins with novel properties, both for practical applications as well as for mechanistic studies.
André Iffland   +3 more
doaj   +2 more sources

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