In a peptide bond, there is restricted rotation between which of the following atoms?
1.the nitrogen and the -carbon
2.the nitrogen and the carboxyl carbon
3.the carboxyl carbon and the -carbon
4.the -carbon and the side chain
5.none of these
Question 2
In a peptide abbreviated G-G-A-S-Q-K-K,
1.glutamic acid is the N-terminus
2.lysine is the C-terminus
3.there are 7 residues
4.all of these
5.lysine is the C-terminus and there are 7 residues