Classic Steroid 11β-Hydroxylase Deficiency Caused by a C→G Transversion in Exon 7 of CYP11B1

L. X. Yang, K. Toda, K. Miyahara, S. Nomoto, E. Kinoshita, T. Baba, M. Yoshimoto, K. Araki, T. Kurashige, K. Hashimoto, S. Ohnishi, Y. Shizuta

研究成果: Contribution to journalArticle査読

14 被引用数 (Scopus)

抄録

Steroid 11β-hydroxylase deficiency (11βOHD) is derived from mutations in the P45011β gene (CYP11B1) and inherited in an autosomal recessive manner. In the present study, we have performed a molecular genetic analysis of CYP11B1 in a Japanese patient clinically diagnosed as classic 11βOHD. Nucleotide sequencing of the PCR-amplified exons from the patient′s genomic DNA reveals a unique C→G transversion that converts codon 384 CGA (arginine) to GGA (glycine) in exon 7. Restriction fragment length polymorphism (RFLP) data demonstrate that the patient is homozygous for this mutation. When the full-length cDNA corresponding to CYP11B1 of the patient is transfected into COS-7 cells, no steroid 11 beta-hydroxylase activity is detectable in mitochondria of the cells. These results indicate that this point mutation completely abolishes P45011β activity and causes the classic 11βOHD.

本文言語英語
ページ(範囲)723-728
ページ数6
ジャーナルBiochemical and Biophysical Research Communications
216
2
DOI
出版ステータス出版済み - 11 13 1995

All Science Journal Classification (ASJC) codes

  • 生物理学
  • 生化学
  • 分子生物学
  • 細胞生物学

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