Login

Join for Free!
112166 members


Cell Bio

Discussion of all aspects of cellular structure, physiology and communication.

Moderator: BioTeam

Cell Bio

Postby spacecowboi » Mon Oct 10, 2011 5:21 am

Why (in detail please) in the carboxypeptidase mechanism, the weak bonds between an enzyme and a substrate will stretch the peptide bond of the substrate which lowers the bond energy?

I just want to know why in detail this happens... Thank you.
spacecowboi
Garter
Garter
 
Posts: 8
Joined: Mon Oct 10, 2011 5:20 am

Postby JackBean » Mon Oct 10, 2011 6:16 am

that's a common mechanism in enzymes, not only in carboxypeptidase. However, the point is, there are several of these "weak" bonds and their sum is strong enough to stretch the peptide causing to be better to hydrolyse.
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5652
Joined: Mon Sep 14, 2009 7:12 pm

Postby spacecowboi » Tue Oct 11, 2011 7:29 pm

I see that clarifies it. Also, I know it is Tyrosine that attacks carboxypeptidases C-terminus, although how is Tyrosine capable of doing so?
spacecowboi
Garter
Garter
 
Posts: 8
Joined: Mon Oct 10, 2011 5:20 am


Postby JackBean » Mon Oct 17, 2011 6:32 am

My guess would be the hydroxyl group, but I would need to see some article about this matter to explain it more deeply.
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5652
Joined: Mon Sep 14, 2009 7:12 pm


Return to Cell Biology

Who is online

Users browsing this forum: No registered users and 0 guests

cron