Results 21 to 30 of about 67,162 (289)

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

Structurally distributed surface sites tune allosteric regulation [PDF]

open access: yeseLife, 2021
Our ability to rationally optimize allosteric regulation is limited by incomplete knowledge of the mutations that tune allostery. Are these mutations few or abundant, structurally localized or distributed? To examine this, we conducted saturation mutagenesis of a synthetic allosteric switch in which Dihydrofolate reductase (DHFR ...
James W. McCormick   +4 more
openaire   +3 more sources

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

Allosteric regulation of rhomboid intramembrane proteolysis [PDF]

open access: yesThe EMBO Journal, 2014
AbstractProteolysis within the lipid bilayer is poorly understood, in particular the regulation of substrate cleavage. Rhomboids are a family of ubiquitous intramembrane serine proteases that harbour a buried active site and are known to cleave transmembrane substrates with broad specificity.
Elena, Arutyunova   +5 more
openaire   +2 more sources

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

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

Computational modeling of cAMP­-dependent protein kinase allostery [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2023
Allosteric regulation by ATP of peptide binding with a cAMP-dependent protein kinase catalytic subunit was com­putationally modeled by combining conventional docking analysis and molecular dynamics calculations.
Andrei Izvolski, Aleksei Kuznetsov
doaj   +1 more source

Allosteric regulation of phenylalanine hydroxylase [PDF]

open access: yesArchives of Biochemistry and Biophysics, 2012
The liver enzyme phenylalanine hydroxylase is responsible for conversion of excess phenylalanine in the diet to tyrosine. Phenylalanine hydroxylase is activated by phenylalanine; this activation is inhibited by the physiological reducing substrate tetrahydrobiopterin.
openaire   +2 more sources

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

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