コイ肝膵臓における代謝中間体の含量およびphosphofructokinase活性への関与 Concentrations of Metabolic Intermediates and Their Relation to Phosphofructokinase Activity in Carp Hepatopancreas

この論文にアクセスする

この論文をさがす

著者

抄録

The metabolic intermediate concentrations and enzyme activities were determined in the hepatopancreas of carp <i>Cyprinus carpio</i> fed for 30 days with diets high in protein, lipid, and carbohy-drate. The effect of physiological concentrations of the intermediates on the activity of purified phos-phofructokinase (PFK) was also investigated. The dietary treatments induced slow but marked changes in activities of hepatopancreatic enzymes. This suggested an enzyme induction in the fish hepatopancreas but could not account for the rapid response of body composition to the dietary treat-ments. Each concentration of ATP, ADP, AMP, G1P, G6P, F6P, and FDP in the hepatopancreas ranged from 10<sup>-3</sup>M to 10<sup>-5</sup>M, corresponding to the Km values for many glycolytic enzymes such as PFK. These physiological concentration ranges of ATP, AMP, F6P, and citrate markedly and reasonably affected <i>in vitro</i> PFK activity. The results suggest that <i>in vivo</i> glycolytic activity can be regulated not only by enzyme induction but also by PFK activity without enzyme induction through changes in the physiological concentrations of metabolic intermediates as substrate and effector.

収録刊行物

  • 日本水産学会誌  

    日本水産学会誌 64(1), 110-115, 1998-01-15 

    日本水産學會

参考文献:  23件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  6件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10004852651
  • NII書誌ID(NCID)
    AN00193422
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00215392
  • NDL 記事登録ID
    4381368
  • NDL 雑誌分類
    ZR26(科学技術--農林水産--水産)
  • NDL 請求記号
    Z18-345
  • データ提供元
    CJP書誌  CJP引用  NDL  IR  J-STAGE 
ページトップへ