olar uncharged amino acids HaN COo CH-OH CH 3 Threonine Thr:苏氨酸
Polar uncharged amino acids Thr:苏氨酸 +H3N C COOCH OH CH3 Threonine
olar uncharged amino acids HN CH-co0 CH 2 NH 2 Asparagine Asn:天冬酰胺
Polar uncharged amino acids Asn:天冬酰胺 +H3N CH COOCH2 C O NH2 Asparagine
Polar uncharged amino acids o NH2 CH 2 CH 2 COOH H Glutamine GIn:谷氨酰胺
Polar uncharged amino acids O NH2 C CH2 CH2 H2N C COOH H Glutamine Gln :谷氨酰胺
The 20 standard amino acids Nonpolar, aliphatic R groups Aromatic I groups COe coo Coo Coo Coo Coo HaN- HON 一H CH H Coo Coo Coc H Tyrosine Tryptophan H C-CH. 早H H CHa Positively charged R groups Leucine Proline CDO Hal HN-C-H CH Polar, uncharged R groups CHa NH COo CHi CH Coo HN H HIN HSN H H NHa CoNG Threonine Arginine Histidine coo Coo HaN-O egatively charged R group Coo CH 。 CH HSN-C CHg CHa CHe H HgN Coo Methionine GIutamine aspartate Glutamate
The 20 standard amino acids
B2 Acids and bases acids、 bases and ph Buffer lonization of amino acids
➢ acids 、bases and pH ➢ Buffer ➢ Ionization of amino acids B2 Acids and bases