Login

Join for Free!
118901 members


Exopeptidase

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

Moderator: BioTeam

Exopeptidase

Postby J~N » Mon May 23, 2005 3:58 pm

Can anyone help me to define Exopeptidase please? i hv look up the dictionary in this web but still i can't find it .... This term appeared in my text book and said it is used to breakdown the TERMINAL peptide bond of a polypeptide , breakdown of terminal bond means amino acids can be fomed. So how is it differ from the dipeptidase then ? both of them hv the same function...?????.i am confused ><
User avatar
J~N
Garter
Garter
 
Posts: 3
Joined: Mon May 23, 2005 3:42 pm
Location: Hong Kong

Postby Chris4 » Mon May 23, 2005 4:22 pm

Please refer to rule #4. relevant title :)
Exopeptidase - Any of a group of enzymes that catalyze the hydrolysis of single amino acids from the end of a polypeptide chain. (from an online dictionary)
An endopeptidase catalyses the hydrolysis of single amino acids in the middle of a polypeptide chain.
Doesnt a dipeptidase just catalyze the hydrolysis of dipeptides into the two amino acids.
So no, i dont think they have the same function.
TERMNAL just means the bond on the end. N-terminal and C-terminal.
User avatar
Chris4
Coral
Coral
 
Posts: 286
Joined: Mon Mar 07, 2005 4:56 pm
Location: UK

Postby MrMistery » Mon May 23, 2005 6:40 pm

Chris4 is right. A dipeptidase breaks the bond between 2 aminos in a dipeptide, resulting 2 free amino acids
User avatar
MrMistery
Inland Taipan
Inland Taipan
 
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)



Return to Molecular Biology

Who is online

Users browsing this forum: No registered users and 1 guest