An Example of Head‐to‐Head Dimerization of β 4.4 ‐Helices | Zendy

Lorenzi Gian Paolo | Zendy; MuriValle Valentina | Zendy; Bangerter Felix | Zendy

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An Example of Head‐to‐Head Dimerization of β 4.4 ‐Helices

Author(s) -

Lorenzi Gian Paolo,

MuriValle Valentina,

Bangerter Felix

Publication year - 1984

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19840670625

Subject(s) - chemistry , head (geology) , chloroform , vapor pressure osmometry , osmometer , stereochemistry , crystallography , vapor pressure , polymer chemistry , organic chemistry , geomorphology , geology

1 H‐NMR and vapor‐pressure osmometry results are presented, which indicate the occurrence of a rapid equilibrium involving the head‐to‐head dimerization of β 44 ‐helices in chloroform solutions of HCO‐ L ‐Ile‐( D ‐AIle‐ L ‐Ile) 4 ‐OMe. This equilibrium typifies the one that, in Urry 's view, would be responsible for the formation and breaking down of the ion‐conducting channels formed by gramicidin A in lipid bilayers.

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