ヒトデ内臓脂質に関する研究　第2報　ヒトデ内臓のPhospholipase A 活性の検討

• 長谷川 洋子

• 佐々木 禎―

書誌事項

タイトル別名

• Studies on Visceral Lipids of Starfish II. Phospholipase A in Starfish Asterina pectinrfera.

抄録

Phospholipase A activity was demonstrated in the homogenates of starfish visceral organs i.e. the pyloric caeca (L), the cardial stomach (C) and the gonads (E). The highest activity was observed in (L) followed by (D) and the lowest activity was seen in (E). The main reaction products in the degradation of lecithin and phosphatidylethanolamine were monoacyl-derivatives and free fatty acids. The formation of glyceryl-phosphorylcholine and ethanolamine were not observed. The experiments with α-(14C)-palmitoyl labelled substrate showed the presence of both Al and A2 types of phospholipase. A2 activity was predominant, and its optimum pH was around 7.4. Lecithin was hydrolyzed to a greater extent than phosphatidylethanolamine.

収録刊行物

• 札幌医学雑誌=The Sapporo Medical Journal

  札幌医学雑誌=The Sapporo Medical Journal 40 (1-2), 1-6, 1972-08-31

  札幌医科大学

詳細情報

• CRID: 1390577309351748864
• NII論文ID: 10004853039
• DOI: 10.15114/smj.40.1
• ISSN: 0036472X
• Web Site: https://sapmed.repo.nii.ac.jp/records/18223
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • CiNii Articles
• 抄録ライセンスフラグ: 使用可