What is the overall charge of the Pro-Met-Phe-Ser-Glu-Leu polypeptide at pH #7.2#? I've drawn it, and I think it's #-1#, but I'm not 100% sure.
I recently got my homework graded and returned, and yep, it's a
The polypeptide looks like this:
The glutamate sidechain has a pKa of
The N-terminus and C-terminus have pKas of