Results 41 to 50 of about 7,610 (197)

The proton translocating ATPase responsible for urinary acidification.

open access: yesJournal of Biological Chemistry, 1982
H+ secretion by the turtle urinary bladder is produced by a proton pump located in the luminal membrane. We show that a microsomal fraction of these cells contains an electrogenic proton translocating ATPase that is inhibited by dicyclohexylcarbodiimide but not oligomycin or vanadate.
S, Gluck, S, Kelly, Q, Al-Awqati
openaire   +2 more sources

Integrated genomic and transcriptomic approaches reveal oxidative stress adaptation mechanisms in a mesotrione‐resistant Amaranthus tuberculatus biotype

open access: yesPest Management Science, EarlyView.
Integrated GWAS and transcriptomics in a Canadian waterhemp biotype reveal mesotrione resistance is polygenic and metabolically driven. Significant SNPs and 187 herbicide‐responsive genes point to enhanced redox homeostasis, glutathione‐linked detoxification, lipid/secondary metabolism, and oxidative stress responses. Resistance arises from coordinated,
Martin Laforest   +6 more
wiley   +1 more source

Alternative proton binding mode in ATP synthases [PDF]

open access: yes, 2018
ATP synthases are rotary engines which use the energy stored in a transmembrane electrochemical gradient of protons or sodium ions to catalyze the formation of ATP by ADP and inorganic phosphate.
von Ballmoos, Christoph
core  

Subunit rotation in single FRET-labeled F1-ATPase hold in solution by an anti-Brownian electrokinetic trap

open access: yes, 2013
FoF1-ATP synthase catalyzes the synthesis of adenosine triphosphate (ATP). The F1 portion can be stripped from the membrane-embedded Fo portion of the enzyme.
Boersch, Michael   +4 more
core   +1 more source

Imaging and 3D reconstruction of membrane protein complexes by cryo-electron microscopy and single particle analysis [PDF]

open access: yes, 2006
Cryo-electron microscopy (cryo-EM) in combination with single particle image processing and volume reconstruction is a powerful technology to obtain medium-resolution structures of large protein complexes, which are extremely difficult to crystallize and ...
Gregorini, Marco
core   +1 more source

Differential polypeptide synthesis of the proton-translocating ATPase of Escherichia coli [PDF]

open access: yesJournal of Bacteriology, 1982
We investigated the regulation of the synthesis of the eight polypeptides of the Escherichia coli proton-translocating ATPase. A plasmid carrying the eight genes of the unc operon was used to direct in vivo and in vitro protein synthesis of the eight polypeptides.
W S, Brusilow   +2 more
openaire   +2 more sources

RNA interference in crop protection: opportunities and challenges during the transition to commercialization

open access: yesPest Management Science, EarlyView.
RNA interference (RNAi) technologies, host‐induced gene silencing (HIGS) and spray‐induced gene silencing (SIGS), potentially offer sustainable crop protection. However, efficacy, costs, regulatory clarity, and socio‐environmental impacts require further evaluation for broader use.
Elisabetta Sergi   +12 more
wiley   +1 more source

Zinc, cadmium and lead resistance mechanisms in bacteria and their contribution to biosensing [PDF]

open access: yes, 2010
In bacteria resistance to heavy metals is mainly achieved through active efflux, but also sequestration with proteins or as insoluble compounds is used.
Hynninen, Anu
core  

Step size of the rotary proton motor in single FoF1-ATP synthase from a thermoalkaliphilic bacterium by DCO-ALEX FRET

open access: yes, 2012
Thermophilic enzymes can operate at higher temperatures but show reduced activities at room temperature. They are in general more stable during preparation and, accordingly, are considered to be more rigid in structure.
Boersch, Michael   +7 more
core   +1 more source

Dynamic subcellular translocation of V-type H+ -ATPase is essential for biomineralization of the diatom silica cell wall. [PDF]

open access: yes, 2020
Diatom cell walls, called frustules, are main sources of biogenic silica in the ocean and their intricate morphology is an inspiration for nanoengineering.
Hildebrand, Mark   +2 more
core  

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