Results 21 to 30 of about 256,202 (345)

Islands of conformational stability for Filopodia [PDF]

open access: yes, 2013
Filopodia are long, thin protrusions formed when bundles of fibers grow outwardly from a cell surface while remaining closed in a membrane tube.
A Mogilner   +21 more
core   +2 more sources

Alkene selenenylation: A comprehensive analysis of relative reactivities, stereochemistry and asymmetric induction, and their comparisons with sulfenylation

open access: yesBeilstein Journal of Organic Chemistry, 2011
A broad perspective of various factors influencing alkene selenenylation has been developed by concurrent detailed analysis of key experimental and theoretical data, such as asymmetric induction, stereochemistry, relative reactivities, and comparison ...
Vadim A. Soloshonok, Donna J. Nelson
doaj   +1 more source

Density Functional Studies on Secondary Amides: Role of Steric Factors in Cis/Trans Isomerization

open access: yesMolecules, 2018
Cis/trans isomerization of amide bonds is a key step in a wide range of biological and synthetic processes. Occurring through C-N amide bond rotation, it also coincides with the activation of amides in enzymatic hydrolysis.
Balmukund S. Thakkar   +2 more
doaj   +1 more source

Analytical interfacial layer model for the capacitance and electrokinetics of charged aqueous interfaces [PDF]

open access: yes, 2018
We construct an analytical model to account for the influence of the subnanometer-wide interfacial layer on the differential capacitance and the electro-osmotic mobility of solid–electrolyte interfaces.
Bonthuis, Douwe Jan   +2 more
core   +2 more sources

Bi-steric mTORC1 inhibitors induce apoptotic cell death in tumor models with hyperactivated mTORC1

open access: yesThe Journal of Clinical Investigation, 2023
The PI3K/AKT/mTOR pathway is commonly dysregulated in cancer. Rapalogs exhibit modest clinical benefit, likely owing to their lack of effects on 4EBP1. We hypothesized that bi-steric mTORC1-selective inhibitors would have greater potential for clinical ...
Heng Du   +8 more
doaj   +1 more source

Steric and Electronic Effects in Gold N‐Heterocyclic Carbene Complexes Revealed by Computational Analysis

open access: yesChemistryOpen, 2019
A computational analysis of a series of cationic and neutral gold imidazolylidene and benzimidizolylidene complexes is reported. The Bond Dissociation Energies of the various ligands in the complexes calculated at the PBE0‐D3/def2‐TZVP level of theory ...
Sunel de Kock   +2 more
doaj   +1 more source

A Computational Evaluation of the Steric and Electronic Contributions in Stereoselective Olefin Polymerization with Pyridylamido-Type Catalysts

open access: yesMolecules, 2023
A density functional theory (DFT) study combined with the steric maps of buried volume (%VBur) as molecular descriptors and an energy decomposition analysis through the ASM (activation strain model)–NEDA (natural energy decomposition analysis) approach ...
Olga D’Anania   +2 more
doaj   +1 more source

Multiple solutions of steady-state Poisson-Nernst-Planck equations with steric effects

open access: yes, 2014
Experiments measuring currents through single protein channels show unstable currents. Channels switch between 'open' or 'closed' states in a spontaneous stochastic process called gating.
Eisenberg, Bob, Lin, Tai-Chia
core   +1 more source

Analysis of the conformational profiles of fenamates shows route towards novel, higher accuracy, force-fields for pharmaceuticals [PDF]

open access: yes, 2015
In traditional molecular mechanics force fields, intramolecular non-bonded interactions are modelled as intermolecular interactions, and the form of the torsion potential is based on the conformational profiles of small organic molecules.
Galek, P, Price, SL, Uzoh, OG
core   +1 more source

Breaking Trade‐Off between Selectivity and Activity of Nickel‐Based Hydrogenation Catalysts by Tuning Both Steric Effect and d‐Band Center

open access: yesAdvanced Science, 2019
For selective hydrogenation of chemicals the high selectivity is always at the expense of activity and improving both selectivity and activity is challenging.
Ruijie Gao   +6 more
doaj   +1 more source

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