Glycolipid Enzyme Models. VIII. Effect of Polar Group Structures of Ethanolamine Type Phospholipids on the Enzyme Activity.

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  • OHKATSU Yasukazu
    Department of Applied Chemistry, Faculty of Engineering, Kogakuin Univ.
  • TAKEZAWA Tsuneo
    Department of Applied Chemistry, Faculty of Engineering, Kogakuin Univ.
  • SASAKI Kazuyuki
    Department of Applied Chemistry, Faculty of Engineering, Kogakuin Univ.
  • ANZAI Takayuki
    Department of Applied Chemistry, Faculty of Engineering, Kogakuin Univ.

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Other Title
  • 糖脂質酵素モデル (第8報)
  • Glycolipid Enzyme Models 8 Effect of Polar Group Structures of Ethanolamine Type Phospholipids on the Enzyme Activity
  • Glycolipid Enzyme Models 8 Effect of Po
  • Effect of Polar Group Structures of Ethanolamine Type Phospholipids on the Enzyme Activity

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Abstract

Several ethanolamine-type phospholipids, having different head groups, were synthesized and utilized as a reaction field for hydrolyses of amino acid esters using the mixed vesicular system of a glycolipid as hydrolase model. The effect of a phospholipid on the catalytic activity was investigated. When the reaction field was in liquid-crystalline state, the glycolipid exhibited a higher hydrolytic activity in the reaction field of phospholipids having lower phase transition temperature. The field of gel state, on the other hand, gave the reverse result. These facts indicate that the hydrolytic activity of a glycolipid depends on the fluidity of the reaction field.

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