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Hofmeister series reversal for lysozyme by change in pH and salt concentration: insights from electrophoretic mobility measurements.

Abstract

Hofmeister series reversal can occur with change in pH, or increase in salt concentration. The phenomena are a challenge for any theory of ion specific effects. Recent theoretical work predicts how a complex interplay between ionic sizes, hydration and dispersion forces explains Hofmeister series reversal. Electrophoretic mobility measurements on lysozyme suspensions reported here are consistent with the theory.

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  • Authors

    Salis A, Cugia F, Parsons DF, Ninham BW, Monduzzi M

    Institution

    Department of Chemical & Geological Sciences, University of Cagliari, Monserrato, CA, Italy. asalis@unica.it

    Source

    Physical chemistry chemical physics : PCCP 14:13 2012 Apr 7 pg 4343-6

    MeSH

    Electrophoretic Mobility Shift Assay
    Hydrogen-Ion Concentration
    Muramidase
    Protein Binding
    Salts
    Tromethamine

    Pub Type(s)

    Journal Article
    Research Support, Non-U.S. Gov't

    Language

    eng

    PubMed ID

    22373665