Tyrosine
 
Abbreviations: Tyr, Y 
Properties
Class: Aromatic, hydrophobic  
pK(COO-):  2.20 
pK(NH3+): 9.11
pK(R): 10.07
pI: 5.66 
MW: 181 D 
Occurence in Proteins: 3.5% 
 
 
 
Characteristics
 
 high occurence in beta sheet, bend