Results 71 to 80 of about 808,587 (145)

The Rnf Complex of Clostridium ljungdahlii Is a Proton-Translocating Ferredoxin: NAD+ Oxidoreductase Essential for Autotrophic Growth [PDF]

, 2012
It has been predicted that the Rnf complex of Clostridium ljungdahlii is a proton-translocating ferredoxin:NAD+ oxidoreductase which contributes to ATP synthesis by an H+-translocating ATPase under both autotrophic and heterotrophic growth conditions ...
Dar, Shabir, Leang, C, Lovley, Derek, Tremblay, Pier-Luc, Zhang, Tian   +4 more
core   +2 more sources

Electron cryomicroscopy observation of rotational states in a eukaryotic V-ATPase

, 2015
Eukaryotic vacuolar H+-ATPases (V-ATPases) are rotary enzymes that use energy from hydrolysis of ATP to ADP to pump protons across membranes and control the pH of many intracellular compartments.
Zhao, Jianhua, Samir Benlekbir, John L. Rubinstein, Benlekbir, Samir, Jianhua Zhao, Rubinstein, John L.   +5 more
core   +1 more source

A giant molecular proton pump: structure and mechanism of respiratory complex I

, 2015
The mitochondrial respiratory chain, also known as the electron transport chain (ETC), is crucial to life, and energy production in the form of ATP is the main mitochondrial function. Three proton-translocating enzymes of the ETC, namely complexes I, III
Leonid A. Sazanov, Sazanov, Leonid A ; https://orcid.org/   +1 more
core   +1 more source

Cellular Mechanisms of H+ and HCO3- transport in tight urinary epithelia

, 1992
The sections in this article are: 1 Transepithelial Proton and Bicarbonate Transport 1.1 Intercalated Cells 1.2 Proton Secretion 1.3 Bicarbonate Secretion 2 Molecules Involved in Acid-Base Transport 2.1 Proton-Translocating ATPases 2.2 Cl−−inline image ...
Qais Al‐Awqati, Al-Awqati, Qais, Beauwens, Renaud, Renaud Beauwens   +3 more
core   +1 more source

Coupling between catalytic sites and the proton channel in F1F0-type ATPases

, 1994
F1F0-type ATPases catalyse both ATP-driven proton translocation and proton-gradient-driven ATP synthesis. Recent cryoelectronmicroscopy and low-resolution X-ray studies provide a first glimpse at the structure of this complicated membrane-bound enzyme ...
Capaldi R. A., Turina P., Aggeler R., Wilkens S.   +3 more
core   +1 more source

Mitochondrial NADPH, transhydrogenase and disease

, 2006
Ever since its discovery in 1953 by N. O. Kaplan and coworkers, the physiological role of the proton-translocating transhydrogenase has generally been assumed to be that of generating mitochondrial NADPH.
Jan Rydström, Rydström, Jan,
core   +1 more source

Phylogenetic differences of mammalian basal metabolic rate are not explained by mitochondrial basal proton leak

, 2011
Metabolic rates of mammals presumably increased during the evolution of endothermy, but molecular and cellular mechanisms underlying basal metabolic rate (BMR) are still not understood.
G. Heldmaier, P. B. Frappell, Withers, K. W., B. M. McAllan, White, C. R., Polymeropoulos, E. T., Klingenspor, M., M. Klingenspor, M. Jastroch, McAllan, B. M., C. R. White, Jastroch, M., E. T. Polymeropoulos, Frappell, P. B., Heldmaier, G., K. W. Withers, Polymeropoulos, E.T., Heldmaier, G., Frappell, P.B., Mcallan, B.M., Withers, K.W., Klingenspor, M., White, C.R., Jastroch, M.   +16 more
core   +1 more source

Study of the Yeast Vacuolar-type ATPase by Electron Cryomicroscopy

, 2016
Vacuolar-type ATPases (V-ATPases) are rotary enzymes that use energy from hydrolysis of adenosine triphosphate (ATP) to pump protons across membranes and control the pH of many intracellular compartments. ATP hydrolysis in the soluble catalytic region of
Zhao, Jianhua
core  

Properties of a proton-translocating nicotinamide nucleotide transhydrogenase from Escherichia coli with alpha and beta subunits linked through fused transmembrane helices

, 2001
Proton-translocating nicotinamide nucleotide transhydrogenase from Escherichia coli is composed of an alpha and a beta subunit, whereas the homologues mitochondrial enzyme contains a single polypeptide. As compared to the latter transhydrogenase, using a
Rydstrom, J., Karlsson, J., Hou, C., Bragg, P. D., Tigerstrom, A., Meuller, J., Mjörn, Kristin,   +6 more
core  

Activity-based proteomics analysis revealed that DNJ directly targeted ATP5F1 to alleviate high glucose induced cardiomyocyte injury. [PDF]

Cell Commun Signal
Li X, Chen Y, Yang H, Hou X, Wang R, Cao B, Han J, Yang M.   +7 more
europepmc   +1 more source