Side Chains Amino Acids

• Histidine?


  -Contains imidazole ring

  -basic

  +1 charge
• Phennylanine?

  -Aromatic ring side chain

  -Nonpolar

  -hydrophobic

  
• Tryptophan?

  -imidazole + aromatic side chain

  -nonpolar

  -hydrophilic

  
• Alanine?

  -CH3 side chain

  -nonpolar

  -hydrophobic

  
• Cysteine?

  -SH side chain (disulfide bond)

  -polar

  -hydrophillic

  
• Tyrosine?

  -aromatic + hydroxyl group side chain

  -polar

  -hydrophilic

  
• Serine?

  -hydroxyl group side chain

  -polar

  -hydrophillic