Results 51 to 60 of about 1,744,161 (299)

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Bovine Serum Albumin Rejection by an Open Ultrafiltration Membrane: Characterization and Modeling

open access: yesMembranes
The classic application of ultrafiltration (UF) is for the complete retention of proteins, and in that situation, the transport behavior is well established.
Eric Suryawirawan   +3 more
doaj   +1 more source

The Role of Light–Dark Regulation of the Chloroplast ATP Synthase

open access: yesFrontiers in Plant Science, 2017
The chloroplast ATP synthase catalyzes the light-driven synthesis of ATP and is activated in the light and inactivated in the dark by redox-modulation through the thioredoxin system.
Kaori Kohzuma   +11 more
doaj   +1 more source

Effects of the Fluid Replacement Method During Online Hemodiafiltration on the Solute Removal Performance and Biocompatibility Using the Asymmetric Cellulose Triacetate Membrane

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Pre‐dilution online hemodiafiltration (Pre‐HDF) is predominantly used in Japan, whereas post‐dilution online HDF (Post‐HDF) is more common in Europe. An asymmetric cellulose triacetate (ATA) membrane may improve biocompatibility.
Kenji Sakurai   +4 more
wiley   +1 more source

The Tat-dependent protein translocation pathway

open access: yesBiomolecular Concepts, 2011
The twin-arginine translocation (Tat) pathway is found in bacteria, archaea, and plant chloroplasts, where it is dedicated to the transmembrane transport of fully folded proteins.
Hou Bo, Brüser Thomas
doaj   +1 more source

The PIN-FORMED (PIN) protein family of auxin transporters [PDF]

open access: yes, 2009
The PIN-FORMED (PIN) proteins are secondary transporters acting in the efflux of the plant signal molecule auxin from cells. They are asymmetrically localized within cells and their polarity determines the directionality of intercellular auxin flow.
Krecek, Pavel   +6 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Importin-beta and CRM1 control a RANBP2 spatiotemporal switch essential for mitotic kinetochore function [PDF]

open access: yes, 2017
Protein conjugation with small ubiquitin-related modifier (SUMO) is a post-translational modification that modulates protein interactions and localisation.
Damizia, Michela   +7 more
core   +1 more source

Transport o proteins into mitochondria [PDF]

open access: yesCurrent Opinion in Cell Biology, 1989
The transfer of cytoplasmically synthesized precursor proteins into or across the inner mitochondrial membrane is dependent on energization of the membrane. To investigate the role of this energy requirement, a buffer system was developed in which efficient import of ADP/ATP carrier into mitochondria from the receptor-bound state occurred.
Pfanner, Nikolaus, Neupert, Walter
openaire   +5 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

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