Results 11 to 20 of about 30,768 (207)

Voltage Sensing in Bacterial Protein Translocation [PDF]

, 2020
The bacterial channel SecYEG efficiently translocates both hydrophobic and hydrophilic proteins across the plasma membrane. Translocating polypeptide chains may dislodge the plug, a half helix that blocks the permeation of small molecules, from its ...
Bondar, Ana-Nicoleta, Knyazev, Denis G., Kuttner, Roland, Pohl, Peter, Siligan, Christine, Zimmerman, Mirjam   +5 more
core   +1 more source

The gateway to chloroplast: re-defining the function of chloroplast receptor proteins [PDF]

, 2012
Chloroplast biogenesis often requires a tight orchestration between gene expression (both plastidial and nuclear) and translocation of similar to 3000 nuclear-encoded proteins into the organelle.
Bölter, Bettina, Chang, Wai-Ling, Soll, Jürgen   +2 more
core   +1 more source

Dynamic scaling theory of the forced translocation of a semi-flexible polymer through a nanopore

, 2015
We present a theoretical description of the dynamics of a semi-flexible polymer being pulled through a nanopore by an external force acting at the pore.
Lam, Pui-Man, Zhen, Yi
core   +1 more source

Translocation of polymers with folded configurations across nanopores

, 2007
The transport of polymers with folded configurations across membrane pores is investigated theoretically by analyzing simple discrete stochastic models.
Kolomeisky, Anatoly B., Kotsev, Stanislav   +1 more
core   +1 more source

Electric-field-driven polymer entry into asymmetric nanoscale channels

, 2012
The electric-field-driven entry process of flexible charged polymers such as single stranded DNA (ssDNA) into asymmetric nanoscale channels such as alpha-hemolysin protein channel is studied theoretically and using molecular dynamics simulations ...
Hossein Fazli, M. Rubinstein, Narges Nikoofard   +2 more
core   +1 more source

Conformational Dynamics of the Plug Domain of the SecYEG Protein-conducting Channel [PDF]

, 2011
The central pore of the SecYEG preprotein-conducting channel is closed at the periplasmic face of the membrane by a plug domain. To study its conformational dynamics, the plug was labeled site-specifically with an environment-sensitive fluorophore.
Arkowitz, Baneyx, Becker, Bol, Bonardi, Bondar, Cabelli, De Keyzer, Driessen, du Plessis, Duong, Egea, Evans, Fekkes, Frauenfeld, Greenough, Gumbart, Hanahan, Harris, Joly, Junne, Klose, Kusters, Lakowicz, Li, Lin, Lycklama, Maillard, Manting, Ménétret, Nakatogawa, Osborne, Plath, Prinz, Ramachandran, Rutkowska, Schaffitzel, Smith, Tam, Tsukazaki, Van den Berg, van der Does, van der Sluis, Zhang, Zimmer   +44 more
core   +2 more sources

Phase transition and phase coexistence in coupled rings with driven exclusion process

, 2013
We study one-dimensional exclusion processes in two coupled closed rings consisting of a common diffusive channel and two parallel active (driven) channels.
Basu, Abhik, Chandra, Anjan Kumar, Chatterjee, Rakesh   +2 more
core   +1 more source

Lead Uptake, Toxicity, and Detoxification in Plants [PDF]

, 2011
Lead has gained considerable attention as a persistent toxic pollutant of concern, partly because it has been prominent in the debate concerning the growing anthropogenic pressure on the environment.
Dumat, Camille, Pinelli, Eric, Pourrut, Bertrand, Shahid, Muhammad, Winterton, Peter   +4 more
core   +4 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source