Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (4): 549.

• Articles • Previous Articles     Next Articles

Studies on the Enzymological Properties of Antibody Induced by N-hydroxymethylmesohemin

FENG Yan1, GAO Shu-Juan1, GAO Gui1, LIU Xi-Yu1, YANG Tong-Shu1, LIU Zi2   

  1. 1. State Key Lab.of Enzyme Engineering, Jilin University, Changchun, 130023;
    2. Institute of Agriculture and Animal Science of PLA of China, Changchun
  • Received:1994-05-12 Revised:1994-11-30 Online:1995-04-24 Published:1995-04-24

Abstract: N-hydroxymethylmesohemin was used as haptin to elicit monoclonal antibody 11D1through the immunization and cell fusion techniques.The antibody had the ability to combine with mesohemin and showed the activity of peroxidase.Further investigations demonstrate that the affinities of antibody for haptin and mesohemin were 1.1×10-6and 2.1×10-6mol/Lrespectively. When antibody-mesohemin complex catalyzed reaction, its Kmand Kcatfor H2O2were 13. 0 mmol/Land 86 min-1respectively. Compared with the noncat alyzed reaction, the activity of antibody-mesohemin complex elevated 1.8× 104(mol/L)-1.

Key words: N-hydroxymethylmesohemin, Abzyme, Peroxidase

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