Results 61 to 70 of about 3,454,137 (301)

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Conformational Dynamics in Nitrogen-Fused Azabicycles [PDF]

open access: yesThe Journal of Organic Chemistry, 2003
Using molecular mechanics (MM3 force field)-based methodology, conformational dynamics have been studied for 1-azabicyclo[2.2.0]hexane, 1-azabicylo[3.3.0]octane, and 1-azabicylo[4.4.0]decane. Obtained conformational schemes describe the flexibity of these parent azabicyles as well as permit us to estimate conformational mobility in related N-fused ...
Anatoly M, Belostotskii   +1 more
openaire   +2 more sources

Computational investigation of conformational and spectroscopic substates in neuroglobin [PDF]

open access: yes, 2011
The family of globins has a strong significance in the history of protein research. Their abundance, spread in nature, and evolutionary diversity are crucial factors for a wide range of approved and suggested physiological functions taking place in ...
Lutz, Stephan Alexander
core   +1 more source

Conformational and functional analysis of molecular dynamics trajectories by Self-Organising Maps

open access: yesBMC Bioinformatics, 2011
Background Molecular dynamics (MD) simulations are powerful tools to investigate the conformational dynamics of proteins that is often a critical element of their function.
Stella Fabio   +3 more
doaj   +1 more source

Hierarchical modeling of activation mechanisms in the ABL and EGFR kinase domains: thermodynamic and mechanistic catalysts of kinase activation by cancer mutations. [PDF]

open access: yesPLoS Computational Biology, 2009
Structural and functional studies of the ABL and EGFR kinase domains have recently suggested a common mechanism of activation by cancer-causing mutations.
Anshuman Dixit, Gennady M Verkhivker
doaj   +1 more source

The Picornavirus Precursor 3CD Has Different Conformational Dynamics Compared to 3Cpro and 3Dpol in Functionally Relevant Regions

open access: yesViruses, 2021
Viruses have evolved numerous strategies to maximize the use of their limited genetic material, including proteolytic cleavage of polyproteins to yield products with different functions.
Dennis S. Winston, David D. Boehr
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Modelling conformational transitions in kinases by molecular dynamics simulations:achievements, difficulties and open challenges

open access: yesFrontiers in Genetics, 2014
Protein kinases work because their flexibility allows to continuously switch from inactive to active form. Despite the large number of structures experimentally determined in such states, the mechanism of their conformational transitions as well as the ...
Marco eD'Abramo   +4 more
doaj   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

open access: yesFEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi   +6 more
wiley   +1 more source

Mean Field Approximation in Conformation Dynamics [PDF]

open access: yesMultiscale Modeling & Simulation, 2009
We propose a new approach to the transfer operator based analysis of the conformation dynamics of molecules. It is based on a statistical independence ansatz for the eigenfunctions of the operator related to a partitioning into subsystems. Numerical tests performed on small systems show excellent qualitative agreement between mean field and exact model,
Gero Friesecke   +2 more
openaire   +2 more sources

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