difference between a protein and peptide hormone?

fuji · #1 (**permalink**) 06-08-2009, 11:27 AM

i thought all proteins were made of peptide chains
so why is insulin an example of peptide hormone and TSH an eg. of protein?

whats the differenvce?

Anastasia_S · #2 (**permalink**) 06-09-2009, 10:52 AM

To me peptide is a shorter protein

Dris · #3 (**permalink**) 06-11-2009, 11:16 AM

A chain of 1 to 50 Aminoacides is a peptide. A chain with more then 50 AA's is A protein.

glbiochem · #4 (**permalink**) 06-15-2009, 06:51 AM

In my viewpoint, peptide is chemistry made. But protein is native or expressed.

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difference between a protein and peptide hormone? - Peptide Forum

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