Locating counterions in guanosine quadruplexes: A contrast-variation neutron diffraction experiment in condensed hexagonal phase
Article Abstract:
The guanosine 5'-monophosphate, dipotassium salt, is considered and G-quadruplexes in hexagonal phase are prepared. The very large K ions concentration difference between the binding sites and the bulk solution demonstrates that counterions are structurally involved in the formation and in the stabilization of the helices.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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Pressure effects on columnar lyotropics: anisotropic compressibilities in guanosine monophosphate four-stranded helices
Article Abstract:
A high-pressure X-ray diffraction analysis of the structural properties of GMP helices in the hexagonal phase in the presence and absence of KCl is discussed. The reported experimental data might be helpful in using theoretical approaches in further analysis at different force/extension regimes.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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Pressure induced cubic-to-cubic phase transition in monoolein hydrated system
Article Abstract:
An investigation is conducted of the structure, stability and transformation of the P(sub n)3(sub m) bicontinuous cubic phase through synchrotron x-ray diffraction in the monoolein-water system. It appears the full hydration properties of monoolein are strongly related to the pressure.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2001
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