Results 1 to 10 of about 18,737 (212)

Convergent allostery in ribonucleotide reductase [PDF]

open access: yesNature Communications, 2019
Ribonucleotide reductase (RNR) catalyzes the conversion of ribonucleotides to deoxyribonucleotides, which is an essential step in DNA synthesis. Here the authors use small-angle X-ray scattering, X-ray crystallography, and cryo-electron microscopy to ...
William C. Thomas   +7 more
doaj   +3 more sources

Eigenvector Centrality Distribution for Characterization of Protein Allosteric Pathways

open access: yes, 2018
Determining the principal energy pathways for allosteric communication in biomolecules, that occur as a result of thermal motion, remains challenging due to the intrinsic complexity of the systems involved.
Batista, Victor S.   +8 more
core  

NMR Line Shapes and Multi-State Binding Equilibria [PDF]

open access: yes, 2012
Biological function of proteins relies on conformational transitions and binding of specific ligands. Protein-ligand interactions are thermodynamically and kinetically coupled to conformational changes in protein structures as conceptualized by the ...
Kovrigin, Evgeni
core   +1 more source

Domain insertion permissibility-guided engineering of allostery in ion channels

open access: yesNature Communications, 2019
Allostery is a fundamental principle of protein regulation that remains challenging to engineer. Here authors screen human Inward Rectifier K + Channel Kir2.1 for permissibility to domain insertions and propose that differential permissibility is a ...
Willow Coyote-Maestas   +3 more
doaj   +1 more source

Asymmetric activation mechanism of a homodimeric red light-regulated photoreceptor

open access: yeseLife, 2018
Organisms adapt to environmental cues using diverse signaling networks. In order to sense and integrate light for regulating various biological functions, photoreceptor proteins have evolved in a modular way.
Geoffrey Gourinchas   +2 more
doaj   +1 more source

The step-wise pathway of septin hetero-octamer assembly in budding yeast

open access: yeseLife, 2017
Septin proteins bind guanine nucleotides and form rod-shaped hetero-oligomers. Cells choose from a variety of available septins to assemble distinct hetero-oligomers, but the underlying mechanism was unknown.
Andrew Weems, Michael McMurray
doaj   +1 more source

An interdomain sector mediating allostery in Hsp70 molecular chaperones

open access: yesMolecular Systems Biology, 2010
Allosteric coupling between protein domains is fundamental to many cellular processes. For example, Hsp70 molecular chaperones use ATP binding by their actin‐like N‐terminal ATPase domain to control substrate interactions in their C‐terminal substrate ...
Robert G Smock   +6 more
doaj   +1 more source

Link between allosteric signal transduction and functional dynamics in a multi-subunit enzyme: S-adenosylhomocysteine hydrolase

open access: yes, 2011
S-adenosylhomocysteine hydrolase (SAHH), a cellular enzyme that plays a key role in methylation reactions including those required for maturation of viral mRNA, is an important drug target in the discovery of antiviral agents.
Choi, Sun   +3 more
core   +1 more source

Introduction to Protein Structure Prediction [PDF]

open access: yes, 2017
This chapter gives a graceful introduction to problem of protein three- dimensional structure prediction, and focuses on how to make structural sense out of a single input sequence with unknown structure, the 'query' or 'target' sequence.
Abeln, Sanne   +2 more
core   +1 more source

Controlled mechanochemical coupling of anti-junctions in DNA origami arrays

open access: yesNature Communications
Allostery is a hallmark of cellular function and important in every biological system. Still, we are only starting to mimic it in the laboratory. Here, we introduce an approach to study aspects of allostery in artificial systems.
Fiona Cole   +5 more
doaj   +1 more source

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