What does "des" mean in the name "des-Asp1 Angiotensin I?

A decapeptide, Angiotensin I can be proteolytically cleaved to a nanopeptide, des-Asp1 Ang I. What does the "des" prefix designate? Does it simply mean that the nanopeptide is like Ang I except...

07 July 2014 3,205 5 View