The statistical-mechanics study for the distribution of water molecules in aquaporin

Saree Phongphanphanee, Norio Yoshida, Fumio Hirata

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The equilibrium distribution function of water in the aquaporin-Z is calculated based on the three-dimensional reference interaction site model theory. It is found that water in aquaporin-Z distributes continuously throughout the channel with the open structure, while the distribution has a conspicuous gap around the R189 side chain in the closed form. The gating mechanism of the channel is inferred from the water distribution. The method also provides information with respect to the distribution of hydrogen atoms of water inside the channel, which is important to investigate the conduction mechanism of molecules including protons in the channel.

Original languageEnglish
Pages (from-to)196-201
Number of pages6
JournalChemical Physics Letters
Volume449
Issue number1-3
DOIs
Publication statusPublished - Nov 26 2007

Fingerprint

Aquaporins
Statistical mechanics
statistical mechanics
Molecules
Water
water
molecules
Distribution functions
Protons
Hydrogen
hydrogen atoms
Atoms
distribution functions
conduction
protons
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

The statistical-mechanics study for the distribution of water molecules in aquaporin. / Phongphanphanee, Saree; Yoshida, Norio; Hirata, Fumio.

In: Chemical Physics Letters, Vol. 449, No. 1-3, 26.11.2007, p. 196-201.

Research output: Contribution to journalArticle

Phongphanphanee, Saree ; Yoshida, Norio ; Hirata, Fumio. / The statistical-mechanics study for the distribution of water molecules in aquaporin. In: Chemical Physics Letters. 2007 ; Vol. 449, No. 1-3. pp. 196-201.
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