Cited by 200Sexual Differentiation and DisordersGenetic and Clinical Aspects of Sex Determination and Chromosomal AbnormalitiesEstrogen and related hormone effects

A single base mutation in the androgen receptor gene causes androgen insensitivity in the testicular feminized rat.

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Yarbrough, W G, Quarmby, V E, Simental, J A, Joseph, D R, Sar, M, Lubahn, D B, Olsen, K L, French, F S +1 more·1990·Journal of Biological Chemistry

Abstract

The complete form of androgen insensitivity is an inherited X-linked syndrome in which genetic males fail to undergo masculinization in utero due to defective functioning of the androgen receptor (AR). The molecular basis of androgen insensitivity was investigated in the testicular feminized (Tfm) rat with this syndrome. AR mRNA size and amount, as well as nuclear AR protein revealed by immunocytochemistry, suggested normal expression of the AR gene in the Tfm rat. Sequence analysis of the AR coding region from Tfm and wild-type littermate male rats revealed a single transition mutation, guanine to adenine, within exon E, changing arginine 734 to glutamine within the steroid-binding domain of the AR. This arginine is highly conserved among the family of nuclear receptors and may be part of a phosphorylation recognition site. A recreated mutant AR (Arg734----Gln) expressed in COS cells had only 10-15% of the androgen-binding capacity of wild-type AR; the reduced androgen-binding capacity was similar to that of AR in tissue extracts of the Tfm rat. Stimulation of transcriptional activity by the recreated mutant AR was reduced relative to wild-type AR in cotransfection assays in CV1 cells using as reporter plasmid the mouse mammary tumor virus promoter linked to the chloramphenicol acetyltransferase gene. Thus, arginine 734 appears essential for normal AR function both in androgen binding and transcriptional activation. Absence of these functions results in androgen insensitivit…

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Crossref · 10.1016/s0021-9258(19)38972-0

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Authors
Yarbrough, W. G., Quarmby, V. E., Simental, J. A., Joseph, D. R., Sar, M., Lubahn, D. B., Olsen, K. L., French, F. S., & Wilson, E. M.
Affiliations
University of North Carolina at Chapel Hill (US)
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1990-05
Volume
265
Issue
15
Pages
8893-8900
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1565230790
Cited by
199
References
59
Citations by year
2025: 1 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 2 · 2019: 1 · 2018: 2 · 2017: 4 · 2015: 8 · 2014: 4 · 2013: 4 · 2012: 4
FWCI
6.13
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion, cc-by)
  • UNC Libraries
Funders
  • Andrew W. Mellon Foundation
  • National Institutes of Health (5p30hd018968-12)
  • National Institute of Child Health and Human Development
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (P-30 HD18968, HD-16910, HD04466)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
androgen receptor, androgen insensitivity syndrome, single-base mutations, steroid-binding domain, androgen binding, transcriptional activation, male reproductive development, X-linked disorders, rat model
MeSH terms
Amino Acid Sequence, Androgens, Animals, Base Sequence, Cell Line, DNA, Feminization, Gene Amplification, Humans, Male, Molecular Sequence Data, Mutation, Rats, Mutant Strains, Receptors, Androgen, RNA, Messenger, Sequence Homology, Nucleic Acid, Transfection, X Chromosome, Restriction Mapping, Rats

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