Thermokinetics of activation of metal ions to amylase catalyzed reaction

被引:2
|
作者
Zhang, HL [1 ]
Yu, XF
Zhang, G
机构
[1] Qufu Normal Univ, Dept Chem, Qufu 273165, Peoples R China
[2] Shandong Univ, State Key Lab Microbial Technol, Jinan 250100, Peoples R China
关键词
microcalorimetry; thermokinetics; reduced extent; amylase; catalyzed reaction;
D O I
10.3866/PKU.WHXB20021214
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Power - time curves of amylase catalyzed reaction with or without activation were obtained with a 2277 thermal activity monitor (Sweden). The data of K-m and nu(max) were calculated for enzyme catalyzed reactions without activation. Data of apparent K-m and nu(max) were calculated for activation (Ca2+, Mg2+) using thermokinetics theory and reduced extent method. From the relationship between K-m(1) and concentration of metal ions (c), the effects of the activation were gained for metal ions of amylase catalyzed reaction.
引用
收藏
页码:1125 / 1128
页数:4
相关论文
共 6 条
  • [1] MICROCALORIMETRIC STUDY OF ANAEROBIC GROWTH OF ESCHERICHIA-COLI - MEASUREMENT OF AFFINITY OF WHOLE CELLS FOR VARIOUS ENERGY SUBSTRATES
    BELAICH, A
    BELAICH, JP
    [J]. JOURNAL OF BACTERIOLOGY, 1976, 125 (01) : 19 - 24
  • [2] Deng Y, 1985, CHEM J CHINESE U, V6, P621
  • [3] APPLICATION OF A REDUCED-EXTENT METHOD TO THERMOKINETIC STUDIES OF ENZYME-CATALYZED REACTIONS
    LIU, JS
    ZENG, XC
    TIAN, AM
    DENG, Y
    [J]. THERMOCHIMICA ACTA, 1995, 253 : 275 - 283
  • [4] SAILERI G, 1995, ANAL CHIM ACTA, V300, P287
  • [5] TONG S, 1991, BIOCHEMISTRY-US, P266
  • [6] STUDY ON THERMOKINETIC PROPERTIES OF BACTERIAL GROWTH
    Zhang Honglin
    Liu Yongjun
    Sun Haitao
    Sun Xiufang
    Shan Qingzhu
    Xie Changli
    Qu Songsheng
    [J]. ACTA PHYSICO-CHIMICA SINICA, 1993, 9 (06) : 836 - 839