Skip to main content Accessibility help
×
Home

SHORT COMMUNICATION A new variant of the cytochrome P450c17 (CYP17) gene mutation in three patients with 17 α-hydroxylase deficiency

  • S. MONNO (a1), Y. MIZUSHIMA (a1), N. TOYODA (a2), T. KASHII (a1) and M. KOBAYASHI (a1)...
    • Published online by Cambridge University Press: 01 May 1997

Abstract

A new CYP17 gene abnormality was found in three Japanese patients with 17α-hydroxylase deficiency (17OHD). These patients were children from consanguineous marriages, but from two apparently unrelated families: one patient with 46, XY karyotype, and two siblings with 46, XX and 46, XY karyotypes. They were all raised as girls and presented with amenorrhea, eunuchoid appearance and hypertension. Gene analysis revealed two base-pair (TG) deletion in exon 5 (codons 300, 301) of the CYP17 gene. This deletion could be expected to alter the reading frame resulting in the lack of a haem-binding region (Cys 442) due to a premature stop codon at position 333. This small mutation may account for the patients' clinical manifestations of 17OHD.

Copyright

Corresponding author

Yutaka Mizushima, MD, First Department of Internal Medicine, Toyama Medical and Pharmaceutical University, Toyama 930-01, Japan, Fax +81-764-34-5025.

SHORT COMMUNICATION A new variant of the cytochrome P450c17 (CYP17) gene mutation in three patients with 17 α-hydroxylase deficiency

  • S. MONNO (a1), Y. MIZUSHIMA (a1), N. TOYODA (a2), T. KASHII (a1) and M. KOBAYASHI (a1)...
    • Published online by Cambridge University Press: 01 May 1997

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed