Results 21 to 30 of about 1,765,806 (356)

Mobility of the SecA 2-helix-finger is not essential for polypeptide translocation via the SecYEG complex [PDF]

, 2012
The bacterial ATPase SecA and protein channel complex SecYEG form the core of an essential protein translocation machinery. The nature of the conformational changes induced by each stage of the hydrolytic cycle of ATP and how they are coupled to protein ...
Alice Robson, Bauer, Berger, Bessonneau, Breyton, Brundage, Cannon, Dalal, Deville, Ding, Duong, Egea, Erlandson, Erlandson, Gelis, Gold, Gold, Gold, Hizlan, Hunt, Ian Collinson, Karamanou, Lill, Or, Osborne, Osborne, Park, Park, Piggot, Piggot, Richard B. Sessions, Robson, Robson, Robson, Sarah Whitehouse, Tam, Van den Berg, Vicki A.M. Gold, William J. Allen, Wolf, Woodbury, Zimmer, Zimmer   +42 more
core   +2 more sources

Aging in vitro and D-glucose uptake kinetics of diploid human fibroblasts [PDF]

, 1981
By use of a rapid technique, initial rates of D-glucose transport were obtained during the lifespan in vitro of a commercially available strain of human embryo lung fibroblasts (Flow 2000).
Aizawa, Berumen, Blomquist, Bowman, Bramwell, Cremer, Cristofalo, Cristofalo, Germinario, Goldstein, Grinna, Harley, Haslam, Hayflick, Hayflick, Heldt, Hirschberg, Kaplan, Kelley, Klingenberg, Lowry, Martin, Martin, McKerrow, Plagemann, Plagemann, Polgar, Roberts, Rothstein, Schachtschabel, Schneider, Schneider, Schneider, Simons, Smith, Smith, Stevenson, Werdan, Zs.-Nagy   +38 more
core   +1 more source

Altered Na+/K+-ATPase expression plays a role in rumen epithelium adaptation in sheep fed hay ad libitum or a mixed hay/concentrate diet

Veterinární Medicína, 2011
In this study we investigated rumen papillae morphology and the localization and expression of theNa+/K+-ATPase in eight sheep fed hay ad libitum (h) or hay ad libitum plus additional concentrate (h/c). Four sheep were provided with the ad libitum h-diet
J. Kuzinski, R. Zitnan, T. Viergutz, J. Legath, M. Schweigel   +4 more
doaj   +1 more source

Drive, filter, and stick: A protein sorting conspiracy in photoreceptors. [PDF]

, 2019
The sorting of proteins into different functional compartments is a fundamental cellular task. In this issue, Maza et al. (2019. J. Cell Biol https://doi.org/10.1083/jcb.201906024) demonstrate that distinct protein populations are dynamically generated ...
Aidan I. Brown, Besharse, Brangwynne, Elena F. Koslover, Goehring, Hagins, Hu, Lechtreck, Maza, Schlager, Stojanovski, Tas, Wente   +12 more
core   +1 more source

TooT-T: discrimination of transport proteins from non-transport proteins [PDF]

BMC Bioinformatics, 2020
Abstract Background Membrane transport proteins (transporters) play an essential role in every living cell by transporting hydrophilic molecules across the hydrophobic membranes. While the sequences of many membrane proteins are known, their structure and function is still not well characterized and understood, owing to the immense effort needed to ...
Munira Alballa, Gregory Butler
openaire   +3 more sources

Studies on the transport of vitamin D and of 25-hydroxyvitamin D in human plasma

Journal of Lipid Research, 1976
A study was conducted to investigate whether human plasma contains one or more than one protein for the transport of vitamin D and of 25-hydroxyvitamin D (25-OH-D).
K Kida, D S Goodman
doaj   +1 more source

Human aquaporin-11 guarantees efficient transport of H2O2 across the endoplasmic reticulum membrane

Redox Biology, 2020
Hydrogen peroxide (H2O2) is an essential second intracellular messenger. To reach its targets in the cytosol, H2O2 must cross a membrane, a feat that requires aquaporins (AQP) endowed with ‘peroxiporin’ activity (AQP3, AQP8, AQP9).
Stefano Bestetti, Mauro Galli, Ilaria Sorrentino, Paolo Pinton, Alessandro Rimessi, Roberto Sitia, Iria Medraño-Fernandez   +6 more
doaj   +1 more source

Transport on a Lattice with Dynamical Defects [PDF]

, 2013
Many transport processes in nature take place on substrates, often considered as unidimensional lanes. These unidimensional substrates are typically non-static: affected by a fluctuating environment, they can undergo conformational changes.
Andrea Parmeggiani, B. Alberts, B. Schmittmann, Estelle Pitard, Francesco Turci, G. Schutz, Luca Ciandrini, M. Carmen Romano   +7 more
core   +6 more sources

Functional characterization and discovery of modulators of SbMATE, the agronomically important aluminium tolerance transporter from Sorghum bicolor. [PDF]

, 2017
About 50% of the world's arable land is strongly acidic (pH ≤ 5). The low pH solubilizes root-toxic ionic aluminium (Al3+) species from clay minerals, driving the evolution of counteractive adaptations in cultivated crops.
Chang, Geoffrey, Doshi, Rupak, Garza, Denisse M, Kochian, Leon V, McGrath, Aaron P, Piñeros, Miguel, Szewczyk, Paul   +6 more
core   +3 more sources

Quantitative Proteome Analysis Reveals Changes in the Protein Landscape During Grape Berry Development With a Focus on Vacuolar Transport Proteins

Frontiers in Plant Science, 2019
The vacuole plays a central role in fruit growth and quality formation, yet its proteomic landscape is largely unknown. In the present study, a protocol for isolating intact vacuoles from grape flesh tissue was successfully established.
Liuqing Kuang, Shangwu Chen, Yan Guo, Huiqin Ma   +3 more
doaj   +1 more source