Apolipoprotein E, Amyloid, and Alzheimer Disease

Table 1.

ApoE Isoforms in the Human Population

Isoform	Amino acid position		Frequency in the Caucasian population
	112	158
APOE4	Arg	Arg	15%
APOE3	Cys	Arg	78%
APOE2	Cys	Cys	7%