CAS CH 373 Lecture Notes - Lecture 4: Substituent, Carboxylic Acid, Amine
Document Summary
Amino acids - the building blocks of protein carry out various biological functions (cid:8869) capacity to polymerize protein = linear heteropolymers of a - amino acids useful acid base properties varied physical properties. Share many features only differing at the r substituent group. Three common functional groups attached to the a carbon (cid:8869) a carbon always has four substituents and is tetrahedral. All amino acids (except proline) have : (cid:8869) an acidic carboxyl group connected to the a carbon a basic amino group connected to the a carbon an a hydrogen connected to the a carbon. Exception = glycine, the simplest amino acid ; Mw : 119 _ lipka -16 cysteine ccyssc) O - p - o - ch - ch -cooli. Peptides are small condensation products of amino acids small. " compared to proteins ( m*< 10 kda) _ dh - c- oh -11-1 -n" _ dh - cook. H,n+- ch - c - in - ait - coo.
