Results 101 to 110 of about 5,474,193 (390)

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Versatile Control System for Automated Single-Molecule Optical Tweezers Investigations [PDF]

, 2010
We present a versatile control system to automate single-molecule biophysics experiments. This method combines low-level controls into various functional, user-configurable modules, which can be scripted in a domain-specific instruction language.
Richard C. Yeh, Steven J. Koch
core   +1 more source

Single molecule Raman spectroscopy and local work function fluctuations

, 2004
Single molecule Raman spectroscopy provides information on individual molecules with vibrational-level resolution. The unique mechanisms leading to the huge Raman cross-section enhancement necessary for single molecule sensitivity are under intense ...
Abdel-Kerim, Andreev, Arenas, Avouris, Bizzarri, Bjerneld, Bosnick, Constantino, Etchegoin, Furtak, Gersten, Gersten, Gersten, Gilad Haran, Habuchi, Hildebrandt, Inoue, Jia, Kneipp, Krug, Lee, Lemma, Lombardi, Lukatksy, Michaels, Michaels, Moskovits, Neporent, Nie, Otto, Otto, Persson, Smoluchowski, Wandelt, Wang, Weiss, Xu, Xu, Yamada   +38 more
core   +1 more source

The nicotinamide hypothesis revisited—plant defense signaling integrating PARP, nicotinamide, nicotinic acid, epigenetics, and glutathione

FEBS Letters, EarlyView.
Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley   +1 more source

The Area Law of Molecular Entropy: Moving beyond Harmonic Approximation

Entropy
This article shows that the gas-phase entropy of molecules is proportional to the area of the molecules, with corrections for the different curvatures of the molecular surface.
Amitava Roy, Tibra Ali, Vishwesh Venkatraman   +2 more
doaj   +1 more source

Non-Linear Transport through a Molecular Nanojunction

, 2001
We present a simple model of electrical transport through a metal-molecule-metal nanojunction that includes charging effects as well as aspects of the electronic structure of the molecule.
Hettler, Matthias H., Schoeller, Herbert, Wenzel, Wolfgang   +2 more
core   +2 more sources

Single cis‐elements in brassinosteroid‐induced upregulated genes are insufficient to recruit both redox states of the BIL1/BZR1 DNA‐binding domain

FEBS Letters, EarlyView.
Phytohormone brassinosteroid‐induced gene regulation by the transcription factor BIL1/BZR1 involves redox‐dependent DNA‐binding alternation and interaction with the transcription factor PIF4. The reduced BIL1/BZR1 dimer binds preferred cis‐elements, while oxidation alters its oligomerization state and disrupts DNA‐binding ability.
Shohei Nosaki, Masae Ohtsuka, Takeshi Nakano, Masaru Tanokura, Takuya Miyakawa   +4 more
wiley   +1 more source

Resistance of a Molecule

, 2002
32 pages, 22 figures. Chapter to be published (2002) in the "Handbook of Nanoscience, Engineering and Technology" by CRC Press (http://www.crcpress.com), edited by W. Goddard, D. Brenner, S.
Paulsson, Magnus, Zahid, Ferdows, Datta, Supriyo   +2 more
openaire   +2 more sources

Controlling the phase of a light beam with a single molecule

, 2011
We employ heterodyne interferometry to investigate the effect of a single organic molecule on the phase of a propagating laser beam. We report on the first phase-contrast images of individual molecules and demonstrate a single-molecule electro-optical ...
A. Renn, C. Cohen-Tannoudji, G. Zumofen, G. Zumofen, J. Hwang, M. Born, M. Nielsen, M. Pototschnig, V. Sandoghdar, Y. Chassagneux   +9 more
core   +1 more source

Structural dynamics of the plant hormone receptor ETR1 in a native‐like membrane environment

FEBS Letters, EarlyView.
The present study unveils the structural and signaling dynamics of ETR1, a key plant ethylene receptor. Using an optimized nanodisc system and solution NMR, we captured full‐length ETR1 in a native‐like membrane environment. Our findings reveal dynamic domain uncoupling and Cu(I)‐induced rigidification, providing the first evidence of metal‐triggered ...
Moritz Lemke, Nils Alexander Lakomek, Georg Groth   +2 more
wiley   +1 more source