Article
Molecular basis of apparent isolated 17,20-lyase deficiency: compound heterozygous mutations in the C-terminal region (Arg(496)----Cys, Gln(461)----Stop) actually cause combined 17 alpha-hydroxylase/17,20-lyase deficiency.
Biochimica et biophysica acta - 25 Aug 1992
Yanase T, Waterman M R, Zachmann M, Winter J S, Simpson E R, Kagimoto M
Abstract excerpt
The molecular defect in a reported case of isolated 17,20-lyase deficiency in a 46XY individual has been elucidated. The patient was found to be a compound heterozygote, carrying two different mutant alleles in the CYP17 gene. One allele contains a point mutation of arginine (CGC) to cysteine (TG...
Topics
- Adolescent
- Adrenal Hyperplasia, Congenital
- Aldehyde-Lyases
- Amino Acid Sequence
- Base Sequence
- Cell Line
- Cytochrome P-450 Enzyme System
- Disorders of Sex Development
- Heterozygote
- Humans
- Male
- Molecular Sequence Data
- Mutation