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Correction for Schwartz et al., Investigation of protein conformation and interactions with salts via X-ray absorption spectroscopy

PNAS December 20, 2011 108 (51) 20850; https://doi.org/10.1073/pnas.1119275109

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CHEMISTRY Correction for “Investigation of protein conformation and interactions with salts via X-ray absorption spectroscopy,” by Craig P. Schwartz, Janel S. Uejio, Andrew M. Duffin, Alice H. England, Daniel N. Kelly, David Prendergast, and Richard J. Saykally, which appeared in issue 32, August 10, 2010, of Proc Natl Acad Sci USA (107:14008–14013; first published July 26, 2010; 10.1073/pnas.1006435107).

The authors note that the results of their article indicated that sulfite interacts more directly with the peptide than does bromide. These results do not refute nor contradict the work of Cremer and coworkers involving the interactions of anions with poly(N-isopropylacrylamide) (1). In the case of Cremer's work, a direct Hofmeister series is followed. For triglycine, however, at least a partially reversed Hofmeister series might be expected (2, 3), because this molecule contains a site of positive charge.

References

  1. ↵
    1. Zhang YJ,
    2. Furyk S,
    3. Bergbreiter DE,
    4. Cremer PS
    (2005) Specific ion effects on the water solubility of macromolecules: PNIPAM and the Hofmeister series. J Am Chem Soc 127:14505–14510.
    OpenUrlCrossRefPubMed
  2. ↵
    1. Schwierz N,
    2. Horinek D,
    3. Netz RR
    (2010) Reversed anionic Hofmeister series: The interplay of surface charge and surface polarity. Langmuir 26:7370–7379.
    OpenUrlCrossRefPubMed
  3. ↵
    1. López-León T,
    2. Santander-Ortega MJ,
    3. Ortega-Vinuesa JL,
    4. Bastos-González D
    (2008) Hofmeister effects in colloidal systems: Influence of the surface nature. J Phys Chem C 112:16060–16069.
    OpenUrlCrossRef
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Correction for Schwartz et al., Investigation of protein conformation and interactions with salts via X-ray absorption spectroscopy
Proceedings of the National Academy of Sciences Dec 2011, 108 (51) 20850; DOI: 10.1073/pnas.1119275109

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Correction for Schwartz et al., Investigation of protein conformation and interactions with salts via X-ray absorption spectroscopy
Proceedings of the National Academy of Sciences Dec 2011, 108 (51) 20850; DOI: 10.1073/pnas.1119275109
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