http://reply.papertrans.cn/2/156/15532/15532-31.png
http://reply.papertrans.cn/2/156/15532/15532-32.png
http://reply.papertrans.cn/2/156/15532/15532-33.png
http://reply.papertrans.cn/2/156/15532/15532-34.png
Submitted on: 23 October 2002.
Revised on: 01 December 2002.
Accepted on: 15 January 2003.
___________________Journal of Biochemistry---OXFORD UNIV PRESS
http://reply.papertrans.cn/2/156/15532/15532-36.png