Results 1 to 10 of about 280,815 (357)

Unexpected steric hindrance failure in the gas phase F− + (CH3)3CI SN2 reaction [PDF]

open access: yesNature Communications, 2022
Base-induced elimination (E2) and bimolecular nucleophilic substitution (SN2) are of significant importance in physical organic chemistry. Here, the authors show that the competing factor of E2 as opposed to steric hindrance determines the low reactivity
Xiaoxiao Lu   +6 more
doaj   +3 more sources

Stratification relieves constraints from steric hindrance in the generation of compact actomyosin asters at the membrane cortex. [PDF]

open access: goldSci Adv, 2020
Recent in-vivo studies have revealed that several membrane proteins are driven to form nanoclusters by active contractile flows arising from F-actin and myosin at the cortex. The mechanism of clustering was shown to be arising from the dynamic patterning
Das A   +5 more
europepmc   +7 more sources

Dual-targeting and steric hindrance resolution in HER2 IHC: a novel approach to improve diagnostic sensitivity [PDF]

open access: goldBMC Cancer
Background The HER2 immunohistochemistry (IHC) test is an essential method for detecting breast cancer (BC) and plays a pivotal role in guiding personalized treatment strategies.
Li Luo   +8 more
doaj   +4 more sources

Quantifying steric hindrance and topological obstruction to protein structure superposition [PDF]

open access: yesAlgorithms for Molecular Biology, 2021
Background In computational structural biology, structure comparison is fundamental for our understanding of proteins. Structure comparison is, e.g., algorithmically the starting point for computational studies of structural evolution and it guides our ...
Peter Røgen
doaj   +2 more sources

Increasing Specificity of Targeted DNA Methylation Editing by Non-Enzymatic CRISPR/dCas9-Based Steric Hindrance [PDF]

open access: yesBiomedicines, 2023
As advances in genome engineering inch the technology towards wider clinical use—slowed by technical and ethical hurdles—a newer offshoot, termed “epigenome engineering”, offers the ability to correct disease-causing changes in the DNA without changing ...
Daniel M. Sapozhnikov, Moshe Szyf
doaj   +2 more sources

Bulky-Yet-Flexible Carbene Ligands and Their Use in Palladium Cross-Coupling [PDF]

open access: yesInorganics, 2019
In recent years, several classes of new N-heterocyclic carbene (NHC) ligands were developed around the concept of “flexible steric bulk”. The steric hindrance of these ligands brings stability to the active species, while ligand flexibility ...
Sofie M. P. Vanden Broeck   +2 more
doaj   +3 more sources

Investigating the Influence of Steric Hindrance on Selective Anion Transport [PDF]

open access: yesMolecules, 2019
A series of symmetrical and unsymmetrical alkyl tren based tris-thiourea anion transporters were synthesised and their anion binding and transport properties studied.
Laura A. Jowett   +4 more
doaj   +2 more sources

A molecular equation of state for alcohols which includes steric hindrance in hydrogen bonding [PDF]

open access: green, 2018
In this paper we develop the first equation of state for alcohol containing mixtures which includes the effect of steric hindrance between the two electron lone pair hydrogen bond acceptor sites on the alcohol's hydroxyl oxygen. The theory is derived for
Marshall, Bennett D.
core   +2 more sources

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