Results 41 to 50 of about 6,297 (161)
Correlated tunneling in intramolecular carbon nanotube quantum dots [PDF]
Phys. Rev. Lett. 89, 196402 (2002), 2002 We investigate correlated electronic transport in single-walled carbon nanotubes with two intramolecular tunneling barriers. We suggest that below a characteristic temperature the long range nature of the Coulomb interaction becomes crucial to determine the temperature dependence of the maximum G_max of the conductance peak.
arxiv +1 more source
Acetylation‐Deacetylation‐Driven Natural Product Biosynthesis
ChemistryEurope, EarlyView.This review summarizes the role of acetylation‐deacetylation in natural product biosynthesis, including acetylation followed by deacetylation after several biosynthetic steps, acetylation‐mediated rearrangement, acetylation‐triggered elimination, and the acetylation cycle as a regulatory mechanism. These processes are vital for the formation of complex
Huibin Wang, Ikuro Abe
wiley +1 more source
Oxidoreductases on their way to industrial biotransformations [PDF]
, 2017 Fungi produce heme-containing peroxidases and peroxygenases, flavin-containing oxidases and dehydrogenases, and different copper-containing oxidoreductases involved in the biodegradation of lignin and other recalcitrant compounds.
Berkel, Willem J.H., van +11 more
core +2 more sources
Intramolecular vibrational energy redistribution as state space diffusion: Classical-quantum correspondence [PDF]
Journal of Chemical Physics, vol125, 141101 (2006), 2007 We study the intramolecular vibrational energy redistribution (IVR) dynamics of an effective spectroscopic Hamiltonian describing the four coupled high frequency modes of CDBrClF. The IVR dynamics ensuing from nearly isoenergetic zeroth-order states, an edge (overtone) and an interior (combination) state, is studied from a state space diffusion ...
arxiv +1 more source
Limnology and Oceanography, EarlyView.Abstract Purple sulfur bacteria (PSB) of the family Chromatiaceae (Gammaproteobacteria) can perform chemo‐ and photo‐lithoautotrophy (through anoxygenic photosynthesis) in anoxic layers of freshwater stratified (including meromictic) lakes. This group has been extensively studied via physiological and ecological approaches, albeit their genomics has ...
Pedro J. Cabello‐Yeves +7 more
wiley +1 more source
Molecular architecture of Streptococcus pneumoniae surface thioredoxin-fold lipoproteins crucial for extracellular oxidative stress resistance and maintenance of virulence. [PDF]
, 2021 19 pags, 8 figs, tabsThe respiratory pathogen Streptococcus pneumoniae has evolved efficient mechanisms to resist oxidative stress conditions and to displace other bacteria in the nasopharynx.
Abdullah, M.R. +11 more
core +1 more source
Dynamic Arrest in Polymer Melts: Competition between Packing and Intramolecular Barriers [PDF]
, 2008 We present molecular dynamics simulations of a simple model for polymer melts with intramolecular barriers. We investigate structural relaxation as a function of the barrier strength. Dynamic correlators can be consistently analyzed within the framework of the Mode Coupling Theory (MCT) of the glass transition.
arxiv +1 more source
Overlapping resonances in the control of intramolecular vibrational redistribution [PDF]
J. Chem. Phys. 126, 124307 (2007), 2007 Coherent control of bound state processes via the interfering overlapping resonances scenario [Christopher et al., J. Chem. Phys. 123, 064313 (2006)] is developed to control intramolecular vibrational redistribution (IVR). The approach is applied to the flow of population between bonds in a model of chaotic OCS vibrational dynamics, showing the ability
arxiv +1 more source
Structure, Oligomerization, and Thermal Stability of a Recently Discovered Old Yellow Enzyme
Proteins: Structure, Function, and Bioinformatics, Volume 93, Issue 6, Page 1181-1188, June 2025.ABSTRACT The Old Yellow Enzyme from Ferrovum sp. JA12 (FOYE) displays an unusual thermal stability for an enzyme isolated from a mesophilic organism. We determined the crystal structure of this enzyme and performed bioinformatic characterization to get insights into its thermal stability.
Nakia Polidori +3 more
wiley +1 more source
Oxidative protein folding in the mitochondrial intermembrane space [PDF]
, 2010 Disulfide bond formation is a crucial step for oxidative folding and necessary for the acquisition of a protein's native conformation. Introduction of disulfide bonds is catalyzed in specialized subcellular compartments and requires the coordinated ...
Anfinsen CB +4 more
core +1 more source