Results 81 to 90 of about 1,440,973 (285)

Delta subunit of chloroplast coupling factor 1 inhibits proton leakage through coupling factor O.

Journal of Biological Chemistry, 1988
The ATP synthase of chloroplasts consists of a proton-conducting portion, CF0, and a catalytic portion, CF1. The smaller subunits of CF1, in particular delta, may play a key role in the coupling of proton transport to ATP synthesis. Purified subunit delta, when added to partially CF1-depleted thylakoid membranes, can restore photophosphorylation ...
Lill, H, Engelbrecht, Siegfried, Junge, Wolfgang   +2 more
openaire   +3 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Bragg spectroscopy of a cigar shaped Bose condensate in optical lattices

, 2007
We study properties of excited states of an array of weakly coupled quasi-two-dimensional Bose condensates by using the hydrodynamic theory. We calculate multibranch Bogoliubov-Bloch spectrums and its corresponding eigenfunctions.
Anderson B P, Berg-Sorenson K, Cataliotti F S, Fleesser M, Fort C, Ghosh T K, Ghosh T K, Greiner M, Jaksch D, Javannainen J, Kazushige Machida, Kramer M, Ohberg P, Orzel C, Stamper-Kurn D M, Stenger J, Tarun Kanti Ghosh, Zaremba E   +17 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Double Anticrossing Coupling in a Single Metal-Clad Microcapillary

IEEE Photonics Journal, 2018
Mode coupling is studied comprehensively in a proposed metal-clad microcapillary cavity, which is an optofluidic capillary with two silver films coated on both surfaces of the silica wall.
Yu Xiang, Yuejiang Song
doaj   +1 more source

Significant g-factor values of a two-electron ground state in quantum dots with spin-orbit coupling

, 2008
The magnetization of semiconductor quantum dots in the presence of spin-orbit coupling and interactions is investigated numerically. When the dot is occupied by two electrons we find that a level crossing between the two lowest many-body eigenstates may ...
E. I. Rashba, E. I. Rashba, E. Merzbacher, H. A. Kramers, Moshe Goldstein, Richard Berkovits, Yuval Weiss   +6 more
core   +1 more source

Statistical Optimal Transport via Factored Couplings

, 2018
We propose a new method to estimate Wasserstein distances and optimal transport plans between two probability distributions from samples in high dimension. Unlike plug-in rules that simply replace the true distributions by their empirical counterparts, our method promotes couplings with low transport rank, a new structural assumption that is similar to
Forrow, A, Hütter, JC, Nitzan, M, Rigollet, P, Schiebinger, G, Weed, J   +5 more
openaire   +3 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Effect of Electron-Phonon Coupling on Thermal Transport across Metal-Nonmetal Interface - A Second Look

, 2015
The effect of electron-phonon (e-ph) coupling on thermal transport across metal-nonmetal interfaces is yet to be completely understood. In this paper, we use a series of molecular dynamics (MD) simulations with e-ph coupling effect included by Langevin ...
Luo, Tengfei, Wu, Xufei
core   +1 more source