scholarly journals Complementary oligonucleotides regulate induced fit ligand binding in duplexed aptamers

2017 ◽  
Vol 8 (3) ◽  
pp. 2251-2256 ◽  
Author(s):  
Jeffrey D. Munzar ◽  
Andy Ng ◽  
Mario Corrado ◽  
David Juncker

Hybridizing a complementary oligonucleotide to an ATP aptamer is shown to functionally regulate a newly revealed induced fit ligand-binding pathway.

2011 ◽  
Vol 7 (5) ◽  
pp. e1002054 ◽  
Author(s):  
Daniel-Adriano Silva ◽  
Gregory R. Bowman ◽  
Alejandro Sosa-Peinado ◽  
Xuhui Huang

2017 ◽  
Author(s):  
Evgenii L. Kovrigin

ABSTRACTIn this paper, I theoretically analyzed ITC profiles for three-state equilibria involving ligand binding coupled to isomerization or dimerization transitions. Simulations demonstrate that the mechanisms where the free or ligand-bound protein undergoes dimerization (such that the ligand cannot bind to or dissociate from the dimer) produce very distinctive titration profiles. In contrast, profiles of the pre-existing equilibrium or induced-fit models cannot be distinguished from a simple two-state process, requiring data from additional techniques to positively identify these mechanisms.


Author(s):  
Edward Miller ◽  
Robert Murphy ◽  
Daniel Sindhikara ◽  
Ken Borrelli ◽  
Matthew Grisewood ◽  
...  

We present a reliable and accurate solution to the induced fit docking problem for protein-ligand binding by combining ligand-based pharmacophore docking (Phase), rigid receptor docking (Glide), and protein structure prediction (Prime) with explicit solvent molecular dynamics simulations. We provide an in-depth description of our novel methodology and present results for 41 targets consisting of 415 cross-docking cases divided amongst a training and test set. For both the training and test-set, we compute binding modes with a ligand-heavy atom RMSD to within 2.5 Å or better in over 90% of cross-docking cases compared to less than 70% of cross-docking cases using our previously published induced-fit docking algorithm and less than 41% using rigid receptor docking. Applications of the predicted ligand-receptor structure in free energy perturbation calculations is demonstrated for both public data and in active drug discovery projects, both retrospectively and prospectively.


2012 ◽  
Vol 102 (3) ◽  
pp. 410a
Author(s):  
Béla Voß ◽  
Sebastian Peuker ◽  
U. Benjamin Kaupp ◽  
Helmut Grubmüller
Keyword(s):  

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