ArticleJournal of the American Society for Mass Spectrometry2008
Hydration energies of deprotonated amino acids from gas phase equilibria measurements.
Article in Journal of the American Society for Mass Spectrometry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Submolecular Resolution of β‑Sheet Plasticity: Decoding Mutations and PTMs in Protein Aggregation Disorders.ACS central science · 2025Article
- A density functional study towards substituent effects on anion sensing with urea receptors.Journal of molecular modeling · 2010Article
- Microhydration of protonated nucleic acid bases and protonated nucleosides in the gas phase.Journal of the American Society for Mass Spectrometry · 2009Article
- Ab initio investigation of the hydration of deprotonated amino acids.Journal of the American Society for Mass Spectrometry · 2009Article
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1 author.
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Abstract
Singly hydrated clusters of deprotonated amino acids were studied using an electrospray high-pressure mass spectrometer equipped with a pulsed ion-beam reaction chamber. Thermochemical data, DeltaH(o), DeltaS(o), and DeltaG(o), for the hydration reaction [AA - H](-) + H(2)O = [AA - H](-).(H(2)O) were obtained from gas-phase equilibria determinations for AA = Gly, Ala, Val, Pro, Phe, Lys, Met, Trp, Gln, Arg, and Asp. The hydration free-energy changes are found to depend significantly on the side-chain substituents. The water binding energy in [AA - H](-).(H(2)O) increases with the gas-phase acidity of AA. The anionic hydrogen bond strengths in [AA - H](-).(H(2)O) are compared with those of the cationic bonds in the corresponding AAH(+).(H(2)O) systems.
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