Chymotrypsin A and B

[chiccaegian from gmail.com]

On 27 Feb, 15:15, chiccaeg... from yahoo.com wrote:
> Dear colleagues,
> I'm looking for the biochemical differences between chymotrypsin A and
> chymotrypsin B.
> Although I supposed that this topic was a very basic one I was not
> able to find infos.
> Is there a reference (paper or web)? In particular regarding their
> enzymatic properties (kinetic
> parameters, stability, substrate specificity).
> Thanks in advance.
> Best regards,
> Gianluca

And I have to add that I'm a bit confused about pre-sequence. Is there
a chymotrypsin presequence?
If so were can I found it?
Thanks again