Table 1
 Heterozygosity and results of loss of heterozygosity (LOH) analysis for three
NF1
gene markers
Marker
Heterozygosity
LOH
Heterozygous/tested
%
Positive/heterozygous
%
Exon 5
Rsa
I RFLP
45/100
45.0
6/45
13.3
IVS27AAAT2.1
52/100
52.0
7/52
13.5
IVS38GT53.0
70/100
70.0
14/70
20.0
Total
92/100
92.0
19/92
20.7