Phenylalanine
 
Abbreviations: Phe, F 
Properties
Class: Aromatic, hydrophobic  
pK(COO-):  1.83 
pK(NH3+): 9.13 
pK(R): 
pI: 5.48 
MW: 165 D 
Occurence in Proteins: 3.5% 
 
 
 
Characteristics
 
 high occurence in beta sheet