Construction of Unsymmetrical Bis‐Urea Macrocyclic Host for Neutral Molecule and Chloride Ion Binding

2021 ◽  
Author(s):  
Biprajit Paul ◽  
Ayan Mukherjee ◽  
Deepak Bhuyan ◽  
Samit Guha
Keyword(s):  
Chloride Ion ◽  
Neutral Molecule ◽  
Ion Binding

Temporal control in tritylation reactions through light-driven variation in chloride ion binding catalysis – a proof of concept

2020 ◽  
Vol 10 (20) ◽  
pp. 7027-7033
Author(s):  
Surbhi Grewal ◽  
Saonli Roy ◽  
Himanshu Kumar ◽  
Mayank Saraswat ◽  
Naimat K. Bari ◽  
...  
Keyword(s):  
Chloride Ion ◽  
Ion Binding ◽  
Proof Of Concept ◽  
Temporal Control

A proof-of-concept on temporal control in the tritylation reactions has been demonstrated using a designed tripodal triazole-linked azo(hetero)arene-based photoswitchable catalyst.

“In situ” observation of the role of chloride ion binding to monkey green sensitive visual pigment by ATR-FTIR spectroscopy

2018 ◽  
Vol 20 (5) ◽  
pp. 3381-3387 ◽  
Author(s):  
Kota Katayama ◽  
Yuji Furutani ◽  
Masayo Iwaki ◽  
Tetsuya Fukuda ◽  
Hiroo Imai ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Ftir Spectroscopy ◽  
Visual Pigment ◽  
Chloride Ion ◽  
Ion Binding ◽  
In Situ Observation ◽  
The Novel ◽  
Long Wavelength

ATR-FTIR spectroscopic study elucidates the novel role of Cl−-binding in primate long-wavelength-sensitive (LWS) visual pigment.

scholarly journals THE EFFECT OF THE CALCIUM LEACHING ON CAPACITY FOR CHLORIDE ION BINDING OF THE HARDENED CEMENT PASTE

2013 ◽  
Vol 67 (1) ◽  
pp. 137-143 ◽  
Author(s):  
Kiyofumi KURUMISAWA ◽  
Yuto MURAKAMI ◽  
Kunihiko ISHIGAKI ◽  
Toyoharu NAWA
Keyword(s):  
Cement Paste ◽  
Chloride Ion ◽  
Ion Binding ◽  
Hardened Cement ◽  
Hardened Cement Paste ◽  
Calcium Leaching

scholarly journals Chloride Ion Binding to Bacteriorhodopsin at Low pH: An Infrared Spectroscopic Study

1999 ◽  
Vol 76 (4) ◽  
pp. 1951-1958 ◽  
Author(s):  
Lóránd Kelemen ◽  
Péter Galajda ◽  
Sándor Száraz ◽  
Pál Ormos
Keyword(s):  
Spectroscopic Study ◽  
Chloride Ion ◽  
Low Ph ◽  
Ion Binding ◽  
Infrared Spectroscopic Study ◽  
Infrared Spectroscopic

Effects of Chloride Ion Binding on the Photochemical Properties of Salinibacter Sensory Rhodopsin I

2009 ◽  
Vol 392 (1) ◽  
pp. 48-62 ◽  
Author(s):  
Daisuke Suzuki ◽  
Yuji Furutani ◽  
Keiichi Inoue ◽  
Takashi Kikukawa ◽  
Makoto Sakai ◽  
...  
Keyword(s):  
Chloride Ion ◽  
Ion Binding ◽  
Sensory Rhodopsin ◽  
Photochemical Properties ◽  
Sensory Rhodopsin I

scholarly journals Free energy calculations suggest a mechanism for Na+/K+-ATPase ion selectivity

2017 ◽  
Author(s):  
Asghar M. Razavi ◽  
Lucie Delemotte ◽  
Joshua R. Berlin ◽  
Vincenzo Carnevale ◽  
Vincent A. Voelz
Keyword(s):  
Mechanistic Model ◽  
Ion Selectivity ◽  
Chloride Ion ◽  
Conformational Transitions ◽  
Free Energy Calculations ◽  
Ion Binding ◽  
Transmembrane Helices ◽  
Protonation State ◽  
Extracellular Milieu ◽  
Binding Stoichiometry

AbstractNa+/K+-ATPase transports Na+and K+ions across the cell membrane via an ion binding site made alternatively accessible to the intra- and extracellular milieu by conformational transitions that confer marked changes in ion binding stoichiometry and selectivity. To probe the mechanism of these changes, we used molecular simulation approaches to identify the protonation state of Na+and K+coordinating residues in E1P and E2P conformations. Further analysis of these simulations revealed a novel molecular mechanism responsible for the change in protonation state: the conformation-dependent binding of an anion (a chloride ion in our simulations) to a previously unrecognized cytoplasmic site in the loop between transmembrane helices 8 and 9, which influences the electrostatic potential of the crucial Na+-coordinating residue D926. This mechanistic model is consistent with experimental observations and provides a molecular-level picture of how E1P to E2P enzyme conformational transitions are coupled to changes in ion binding stoichiometry and selectivity.

Sign in / Sign up

Export Citation Format

Share Document