Results 11 to 20 of about 19,917 (239)

Light-regulated allosteric switch enables temporal and subcellular control of enzyme activity

open access: yeseLife, 2020
Engineered allosteric regulation of protein activity provides significant advantages for the development of robust and broadly applicable tools. However, the application of allosteric switches in optogenetics has been scarce and suffers from critical ...
Mark Shaaya   +14 more
doaj   +1 more source

Modeling the contribution of allosteric regulation for flux control in the central carbon metabolism of E. coli

open access: yesFrontiers in Bioengineering and Biotechnology, 2015
Modeling metabolism is fundamental for cell factory design. Central carbon metabolism (CCM) is particularly important as it provides the energy and precursors for other biological processes.
Daniel eMachado   +2 more
doaj   +1 more source

Rational engineering of enzyme allosteric regulation through sequence evolution analysis.

open access: yesPLoS Computational Biology, 2012
Control of enzyme allosteric regulation is required to drive metabolic flux toward desired levels. Although the three-dimensional (3D) structures of many enzyme-ligand complexes are available, it is still difficult to rationally engineer an ...
Jae-Seong Yang   +4 more
doaj   +1 more source

Exploiting the Unique Properties of Lanthanide Complexes as FRET Probes: from Quantitation to Protein Dynamics

open access: yesAnalysis &Sensing, Volume 3, Issue 1, January 2023., 2023
Lanthanide complexes are ideal donors for FRET (Förster resonance energy transfer) assays with a variety of applications from easy‐to‐use quantitation of proteins to sophisticated experiments giving real‐time information on the movement of proteins. This Review article introduces the principles of using such assays before surveying the full scope of ...
Simon Wheeler, Stephen J. Butler
wiley   +1 more source

Functional selectivity of insulin receptor revealed by aptamer-trapped receptor structures

open access: yesNature Communications, 2022
DNA aptamers can activate insulin receptor as selective agonists or positive allosteric modulators. Here, authors determine structures of the insulin receptor bound to aptamers and provide a basis for the selective activation or allosteric regulation of ...
Junhong Kim   +8 more
doaj   +1 more source

Prediction and confirmation of a switch-like region within the N-terminal domain of hSIRT1

open access: yesBiochemistry and Biophysics Reports, 2022
Many proteins display conformational changes resulting from allosteric regulation. Often only a few residues are crucial in conveying these structural and functional allosteric changes.
Angelina T. Huynh   +10 more
doaj  

Binding leverage as a molecular basis for allosteric regulation.

open access: yesPLoS Computational Biology, 2011
Allosteric regulation involves conformational transitions or fluctuations between a few closely related states, caused by the binding of effector molecules.
Simon Mitternacht, Igor N Berezovsky
doaj   +1 more source

Information propagation in time through allosteric signaling [PDF]

open access: yesPhys. Rev. Research 2, 023367 (2020), 2019
Naively, one expects the information communicated by an enzyme downstream within a signaling network, in which the enzyme is embedded, to grow monotonically with the enzyme's rate of product formation. However, here we observe that this does not necessarily hold true for allosterically regulated enzymes, often observed in signaling networks.
arxiv   +1 more source

Molecular basis for the allosteric activation mechanism of the heterodimeric imidazole glycerol phosphate synthase complex

open access: yesNature Communications, 2021
The allosteric regulation of the bienzyme complex imidazole glycerol phosphate synthase (HisFH) remains to be elucidated. Here, the authors provide structural insights into the dynamic allosteric mechanism by which ligand binding to the cyclase and ...
Jan Philip Wurm   +6 more
doaj   +1 more source

Prediction of allosteric sites and mediating interactions through bond-to-bond propensities [PDF]

open access: yesNature Communications 7, Article number: 12477 (2016), 2016
Allosteric regulation is central to many biochemical processes. Allosteric sites provide a target to fine-tune protein activity, yet we lack computational methods to predict them. Here, we present an efficient graph-theoretical approach for identifying allosteric sites and the mediating interactions that connect them to the active site.
arxiv   +1 more source

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