NCIt definition : Human EPHX1 wild-type allele is located in the vicinity of 1q42.1 and is approximately
35 kb in length. This allele, which encodes epoxide hydrolase 1 protein, is involved
in the metabolism of both arene and aliphatic epoxides. Certain allelic variants of
the EPHX1 gene confer susceptibility to lymphoproliferative disorders. Specific inherited
defects in this gene also cause familial hypercholanemia. An EPHX1 low-activity genotype
is associated with decreased risk of lung cancer.;