Thermodynamics of the helix-coil transition in polypeptides in mixed organic solvents: The influence of inert solvent and side chain

Biopolymers ◽  
1985 ◽  
Vol 24 (9) ◽  
pp. 1823-1840 ◽  
Author(s):  
K. Jeremic ◽  
F. E. Karasz
Keyword(s):  
Organic Solvents ◽  
Side Chain ◽  
Coil Transition ◽  
Inert Solvent

scholarly journals Unsymmetrically functionalized 5,5″-diaryl- and 5,6,5″-triaryl-2,2′:6′,2″-terpyridines: an efficient synthetic route and photophysical properties

2017 ◽  
Vol 95 (8) ◽  
pp. 851-857 ◽  
Author(s):  
Alexey P. Krinochkin ◽  
Dmitry S. Kopchuk ◽  
Albert F. Khasanov ◽  
Nikolay V. Chepchugov ◽  
Igor S. Kovalev ◽  
...  
Keyword(s):  
Organic Solvents ◽  
Photophysical Properties ◽  
Emission Spectra ◽  
Side Chain ◽  
Synthetic Route ◽  
Absorption And Emission ◽  
Efficient Approach ◽  
Absorption And Emission Spectra ◽  
Acetonitrile Solutions ◽  
Intense Emission

An efficient approach for the synthesis of 5,5″- or 5,6,5″-aryl substituted 2,2′:6′,2″-terpyridines, bearing an anneleted cyclopentene unit in one of the side-chain pyridine rings for the improved solubility in organic solvents, via their 1,2,4-triazine analogues has been developed. By using this approach, various aromatic substituents were introduced in the 2,2′:6′,2″-terpyridine core. Depending on the nature of the aromatic substituents, the obtained terpyridines exhibited an intense emission in a range of ca. 344–394 nm in acetonitrile solutions. For the most representative compounds, pronounced bathochromic shifts in both absorption and emission spectra were observed compared with previously reported substituted terpyridines.

Circular dichroism and the pH-induced ?-coil transition of poly(S-carboxymethyl-L-cysteine) and its side-chain homolog

Biopolymers ◽  
1979 ◽  
Vol 18 (2) ◽  
pp. 335-349 ◽  
Author(s):  
Shoichi Ikeda ◽  
Akira Fukutome ◽  
Toyoko Imae ◽  
Tomohiko Yoshida
Keyword(s):  
Circular Dichroism ◽  
Side Chain ◽  
Coil Transition ◽  
Circular Dichroïsm

Manipulating the helix–coil transition profile of synthetic polypeptides by leveraging side-chain molecular interactions

2020 ◽  
Vol 11 (8) ◽  
pp. 1445-1449 ◽  
Author(s):  
Ziyuan Song ◽  
Zhengzhong Tan ◽  
Xuetao Zheng ◽  
Zihuan Fu ◽  
Ettigounder Ponnusamy ◽  
...  
Keyword(s):  
Molecular Interactions ◽  
Ph Sensitive ◽  
Side Chain ◽  
Coil Transition ◽  
Synthetic Polypeptides ◽  
Transition Profile

Based on the pH-sensitive, conformationally tunable triazole polypeptides, we reported the manipulation of helix–coil transition profile determined by the leveraging interactions of the triazole and other side-chain helix-influencing ligands.

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