Conformational change of spermidine upon interaction with adenosine triphosphate in aqueous solution

Keisuke Maruyoshi, Kaori Nonaka, Takeshi Sagane, Tetsuo Demura, Toshiyuki Yamaguchi, Nobuaki Matsumori, Tohru Oishi, Michio Murata

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Endogenous polyamines, represented by putrescine, spermidine, and spermine, are known to exert their physiological functions by interacting with polyanionic biomolecules such as DNA, RNA, adenosine triphosphate (ATP), and phospholipids. Very few examples of conformation analysis have been reported for these highly flexible polymethylene compounds, mainly due to the lack of appropriate methodologies. To understand the molecular basis of the weak interaction between polyamines and polyanions that underlies their physiological functions, we aimed to elucidate the solution conformation of spermidine by using diastereospecifically deuterated and 13C-labeled derivatives (1-7), which were designed to diagnose the orientation of seven conformationally relevant bonds in spermidine. 1H-1H and 13C-1H NMR coupling constants (3JH,H and 3JC,H) were successfully determined for a spermidine-ATP complex. The relevant coupling constants markedly decreased upon complexation. The results reveal that spermidine, when interacting with ATP, undergoes changes that make the conformation more bent and forms the complex with the triphosphate part of ATP in an orientation-sensitive manner.

Original languageEnglish
Pages (from-to)1618-1626
Number of pages9
JournalChemistry - A European Journal
Volume15
Issue number7
DOIs
Publication statusPublished - Feb 2 2009

Fingerprint

Spermidine
Conformations
Adenosine Triphosphate
Polyamines
Phospholipids
Biomolecules
Complexation
RNA
DNA
Nuclear magnetic resonance
Putrescine
Spermine
Derivatives

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Organic Chemistry

Cite this

Conformational change of spermidine upon interaction with adenosine triphosphate in aqueous solution. / Maruyoshi, Keisuke; Nonaka, Kaori; Sagane, Takeshi; Demura, Tetsuo; Yamaguchi, Toshiyuki; Matsumori, Nobuaki; Oishi, Tohru; Murata, Michio.

In: Chemistry - A European Journal, Vol. 15, No. 7, 02.02.2009, p. 1618-1626.

Research output: Contribution to journalArticle

Maruyoshi, Keisuke ; Nonaka, Kaori ; Sagane, Takeshi ; Demura, Tetsuo ; Yamaguchi, Toshiyuki ; Matsumori, Nobuaki ; Oishi, Tohru ; Murata, Michio. / Conformational change of spermidine upon interaction with adenosine triphosphate in aqueous solution. In: Chemistry - A European Journal. 2009 ; Vol. 15, No. 7. pp. 1618-1626.
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