Cysteine
Abbreviations: Cys, C
Properties
Class: Polar, sulfur-containing
pK(COO
-
): 1.96
pK(NH
3
+
): 8.18
pK(R):
10.28
pI: 5.07
MW: 121 D
Occurence in Proteins: 2.8%
Characteristics
Disulfide linkages