Partial androgen insensitivity syndrome and t(X;5): are there upstream regulatory elements of the androgen receptor gene?
Horm Res
; 62(4): 208-14, 2004.
Article
en En
| MEDLINE
| ID: mdl-15452386
ABSTRACT
BACKGROUND/AIMS:
Two half-brothers with similar malformed genitals, who both inherited a maternally derived t(X;5)(q13;p15) translocation, have a phenotype consistent with partial androgen sensitivity syndrome. The aim was to identify the gene disrupted by the X chromosome breakpoint.METHODS:
The breakpoint was localized using fluorescence in situ hybridization to metaphase spreads of the translocation.RESULTS:
The breakpoint on the X chromosome of the X;5 translocation was localized to a 30-kb region. This region does not contain any identified genes or transcripts. However, the breakpoint is approximately 134 kb from the 5' end of the androgen receptor (AR) gene.CONCLUSIONS:
Genetic defects of the AR gene are collectively called androgen insensitivity syndrome and include a range of phenotypes from normal males, often with associated sterility, to XY females. The phenotype seen in the males with the t(X;5) is consistent with this syndrome. The analysis of the chromosomal abnormality suggests that this translocation may remove one or more upstream regulatory elements of the AR gene that are essential for its normal expression and its role in typical external masculinization.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Síndrome de Resistencia Androgénica
/
Translocación Genética
/
Receptores Androgénicos
/
Cromosomas Humanos X
Tipo de estudio:
Prognostic_studies
Límite:
Female
/
Humans
/
Male
/
Newborn
Idioma:
En
Revista:
Horm Res
Año:
2004
Tipo del documento:
Article
País de afiliación:
Australia