Test method

Mutations Detected

% of Individuals [in populations of European origin] with HH

Genotype

Targeted mutation analysis

HFE mutations: p.C282Y, p.H63D

~60-90

p.C282Y/p.C282Y

3-8

p.C282Y/p.H63D

~1

p.H63D/p.H63D1

Sequence analysis

HFE sequence alterations

Unknown

Unknown (compound heterozygotes for p.C282Y allele and rare HFE mutation)

1There is no evidence that p.H63D/p.H63D (homozygous for H63D in HFE: p.[His63Asp];[His63Asp]) is associated with a hemochromatosis phenotype in the absence of another cause of iron overload
Table 4: Molecular Genetic Testing Used in HFE-HH [7].