Results 21 to 30 of about 518,104 (262)

ON THE MECHANISM OF ELECTRON TRANSFER IN COMPLEX III OF THE ELECTRON TRANSFER CHAIN [PDF]

Proceedings of the National Academy of Sciences, 1967
Complex III of the mitochondrial electron transfer chain is an asymmetric unit with a diameter of 80-100 A1 and a molecular weight of about 300,000.2 Preparations of the complex contain 20-30 per cent by weight of lipid and (in the presence of bile salts) are water soluble.3 Under appropriate conditions (involving dilution of the bile salts), the units
H, Baum, J S, Rieske, H I, Silman, S H, Lipton   +3 more
openaire   +2 more sources

On electron transfer

Biophysical Journal, 1976
The tunneling transfer of electrons between two sites, appropriate to biological intermolecular electron transfer, contains physical considerations which are not important in the tunneling transfer between two metals. Analyses (such as the recent one by Hales) based on the well-known formula for the latter but applied to the former case are ...
openaire   +2 more sources

Flavin Electron Shuttles Dominate Extracellular Electron Transfer by Shewanella oneidensis

mBio, 2013
Shewanella oneidensis strain MR-1 is widely studied for its ability to respire a diverse array of soluble and insoluble electron acceptors. The ability to breathe insoluble substrates is defined as extracellular electron transfer and can occur via direct
Nicholas J. Kotloski, Jeffrey A. Gralnick   +1 more
doaj   +1 more source

In Vitro Studies of Flemish, Dutch, and Wild-Type β-Amyloid Provide Evidence for Two-Staged Neurotoxicity

Neurobiology of Disease, 2002
Mutations in the β-amyloid (Aβ) sequence of the amyloid precursor protein gene (APP) present with variable disease phenotypes. While patients with the Dutch APP mutation (E693Q) have predominantly hemorrhagic strokes, Flemish APP (A692G) patients develop
Samir Kumar-Singh, Ann Julliams, Rony Nuydens, Chantal Ceuterick, Christine Labeur, Sally Serneels, Krist'l Vennekens, Peter Van Osta, Hugo Geerts, Bart De Strooper, Christine Van Broeckhoven   +10 more
doaj   +1 more source

Electron Transfer in Biological Systems

Biophysica
Electron transfer is one of the most essential processes in biological systems. Redox reactions, either directly or indirectly, drive the main ATP-synthesizing pathways, especially those relying on a chemiosmotic mechanism, and as such, they are ...
Lucien Bettendorff
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Distance Dependence of Electron-Transfer Quenching in Rigid Media: A Discrete Site Model of Electron Transfer and Electron Exchange

CHIMIA, 1994
The quenching of the luminescence of five emitters which span lifetimes of 1 ns to 10 s has been investigated in rigid media. The mechanism is in every case either electron transfer or electron exchange.
Elisabeth Guerry-Butty, Edwin Haselbach, Paul Suppan   +2 more
doaj   +2 more sources

Physiological Benefits of Oxygen-Terminating Extracellular Electron Transfer

mBio, 2022
Extracellular electron transfer (EET) is a process via which certain microorganisms, such as bacteria, exchange electrons with extracellular materials by creating an electrical link across their membranes.
Yoshihide Tokunou, Masanori Toyofuku, Nobuhiko Nomura   +2 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

K-shell Analysis Reveals Distinct Functional Parts in an Electron Transfer Network and Its Implications for Extracellular Electron Transfer

Frontiers in Microbiology, 2016
Shewanella oneidensis MR-1 is capable of extracellular electron transfer (EET) and hence has attracted considerable attention. The EET pathways mainly consist of c-type cytochromes, along with some other proteins involved in electron transfer processes ...
Dewu eDing, Ling eLi, Chuanjun eSu, Xiao eSun   +3 more
doaj   +1 more source