scholarly journals Conformational and Intermolecular Interaction Dynamics of Photolyase/Cryptochrome Proteins Monitored by the Time-Resolved Diffusion Technique

2017 ◽  
Vol 93 (1) ◽  
pp. 15-25 ◽  
Author(s):  
Masato Kondoh ◽  
Masahide Terazima
2021 ◽  
Vol 12 ◽  
Author(s):  
Yusuke Nakasone ◽  
Masahide Terazima

Biological liquid–liquid phase separation (LLPS) is driven by dynamic and multivalent interactions, which involves conformational changes and intermolecular assembly/disassembly processes of various biomolecules. To understand the molecular mechanisms of LLPS, kinetic measurements of the intra- and intermolecular reactions are essential. In this review, a time-resolved diffusion technique which has a potential to detect molecular events associated with LLPS is presented. This technique can detect changes in protein conformation and intermolecular interaction (oligomer formation, protein-DNA interaction, and protein-lipid interaction) in time domain, which are difficult to obtain by other methods. After the principle and methods for signal analyses are described in detail, studies on photoreactive molecules (intermolecular interaction between light sensor proteins and its target DNA) and a non-photoreactive molecule (binding and folding reaction of α-synuclein upon mixing with SDS micelle) are presented as typical examples of applications of this unique technique.


Author(s):  
Masahide Terazima ◽  
Akira Takakado ◽  
Yusuke Nakasone

2014 ◽  
Vol 459 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Hubert F. Becker ◽  
Kamel Djaout ◽  
Isabelle Lamarre ◽  
Jonathan E. Ulmer ◽  
Delphine Schaming ◽  
...  

Thymidylate synthase ThyX is required for synthesis of thymine in many pathogenic bacteria. Using time-resolved spectroscopy of the flavin cofactor, we unravelled the interplay between the three native substrates and show how harmful oxidase activity is avoided in aerobic environments.


2021 ◽  
Vol 23 (37) ◽  
pp. 21029-21041
Author(s):  
Amita Mahapatra ◽  
Manjari Chakraborty ◽  
Sahadev Barik ◽  
Moloy Sarkar

This work investigates the difference in the microscopic behaviour of imidazolium and pyrrolidinium based ILs employing combined steady state and time-resolved fluorescence, EPR and NMR spectroscopy.


2020 ◽  
Vol 22 (11) ◽  
pp. 6247-6259 ◽  
Author(s):  
Yamanappa Hunashal ◽  
Cristina Cantarutti ◽  
Sofia Giorgetti ◽  
Loredana Marchese ◽  
Henriette Molinari ◽  
...  

The effects induced by extrinsic paramagnetic probes on protein NMR spectra, widely used for surface mapping, can also be exploited to detect the sites of slow and intermediate exchange due to structural or intermolecular interaction dynamics.


2013 ◽  
Vol 53 (supplement1-2) ◽  
pp. S251
Author(s):  
Seokwoo Choi ◽  
Yusuke Nakasone ◽  
Klaas Hellingwerf ◽  
Masahide Terazima

ACS Omega ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 4206-4220 ◽  
Author(s):  
Ruiyan Zhang ◽  
Ning Zhang ◽  
Marzieh Mohri ◽  
Lisha Wu ◽  
Thomas Eckert ◽  
...  

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