BICH 410 Chapter Notes - Chapter 4: C-Terminus, N-Terminus, Aliphatic Compound
Document Summary
All proteins are composed of the 20 standard amino acids (not all 20 are within a protein but most are within the structure) Alpha amino acids (nh2) and alpha carbons only have one substituent branching off of it. Amino acid groups are protonated and the carboxylic acid groups are in their conjugate base forms (carboxylate) because of this, amino acids are considered both acids and bases. Dipolar ions/ zwitterions bear charges groups of opposite polarity. Condensation reaction- bond formation with the elimination of a water molecule. After peptides are incorporated into a peptide the individual amino acids are referred to as amino acids. *when an amino group is at the end- amino terminus or n-terminus. When a carboxylate group is at the end- carboxyl terminus or c-terminus. Charged polar side chains are positive or negative: At low ph amino groups are fully protonated.
