CRCU

Chemical Research in Chinese Universities ›› 1995, Vol. 11 ›› Issue (2): 117-121.

• Articles • Previous Articles     Next Articles

FT-Raman Spectroscopic Studies on the Interaction of Metal Ions With Sphingomyelin Bilayer

ZHAO Bing1, ZHANG Sou-bo2, LIU Ju-zheng2, YUAN Chun-bo2, ZHAO Da-qing3   

  1. 1. Key Laboratory of Molecular Spectra and Structure, Jilin University, Changchun, 130023;
    2. Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Academia Sinica, Changchun, 130022;
    3. Institute of Biophysics, Academia Sinica, Beijing, 100080
  • Received:1994-06-06 Online:1995-04-24 Published:2011-08-17
  • Supported by:

    Supported by the National Natural Sciences Foundation of China

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Cited

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Abstract: The interaction of trivalent lanthanide ions and divalent calcium ions with sph- ngomyelm bilayer has been studied by FT-Raman spectroscopy.The results showed that the bonding of metal ions to the phosphate group of sphingomyelin bi-iayer,either La3+or Ca2+did not change the conformation of the choline group,that is,O-C-C-N+ is still in its gauche conformation.The presence of metal ions changed the states of the interfacial region from liquid-like to amorphous state and even to crystalline.They increased the fluidity of acyl chains of sphingomyelin bilaver and made them packed disorderly.

Key words: Vibrational spectra, Lanthanide ions, Sphingomyelin bilayer