A peptide has the sequence:
Glutamate - His - Trp - Ser - Gly - Leu - Arg - Pro - Gly
What is the net charge of the molecule at pH 3, 8, and 11?
Glutamate - His - Trp - Ser - Gly - Leu - Arg - Pro - Gly
What is the net charge of the molecule at pH 3, 8, and 11?