Journal of Solution Chemistry

, Volume 43, Issue 9–10, pp 1487–1498 | Cite as

Conformation of ATP and ADP Molecules in Aqueous Solutions Determined by High-Energy X-ray Diffraction

  • Takuya Miyazaki
  • Yasuo Kameda
  • Yasuhiro Umebayashi
  • Hiroyuki Doi
  • Yuko Amo
  • Takeshi Usuki


High-energy X-ray diffraction measurements were carried out at 26 °C for aqueous 1.0, 2.0 and 2.05 mol% disodium adenosine 5′-triphosphate (ATP) and 2.0 and 2.05 mol% disodium adenosine 5′-diphosphate (ADP) solutions in order to obtain direct experimental information on the intramolecular conformations of ATP and ADP molecules in aqueous solutions. Observed interference terms were analyzed in terms of the intramolecular geometry of the ATP and ADP molecules. Dihedral angles between adenine and the ribose group (t 1), ribose-ring and methylene group of ribose (t 2), and the methylene group of ribose and triphosphate (or diphosphate) group (t 3), were determined through the least-squares fitting procedure of the observed interference term.


ATP ADP Intramolecular structure Conformation X-ray diffraction 



The authors would like to thank Dr. Shinji Kohara (Japan Synchrotron Research Institute) for his help during X-ray diffraction measurements. The synchrotron radiation experiments were performed with the approval of JASRI (Proposal Nos. 2011A1368 and 2012B1509).


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Takuya Miyazaki
    • 1
  • Yasuo Kameda
    • 1
  • Yasuhiro Umebayashi
    • 2
  • Hiroyuki Doi
    • 2
  • Yuko Amo
    • 1
  • Takeshi Usuki
    • 1
  1. 1.Department of Material and Biological Chemistry, Faculty of ScienceYamagata UniversityYamagataJapan
  2. 2.Graduate School of Science and TechnologyNiigata UniversityNiigataJapan

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