NCIt definition : Human CYP7B1 wild-type allele is located in the vicinity of 8q21.3 and is approximately
211 kb in length. This allele, which encodes 25-hydroxycholesterol 7-alpha-hydroxylase
enzyme, is involved in cholesterol catabolism. Mutation of the gene is associated
with autosomal recessive spastic paraplegia 5A and congenital bile acid synthesis
defect 3.;