RGD Reference Report - An uncommon phenotype with familial central hypogonadism caused by a novel PROP1 gene mutant truncated in the transactivation domain. - Rat Genome Database

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An uncommon phenotype with familial central hypogonadism caused by a novel PROP1 gene mutant truncated in the transactivation domain.

Authors: Reynaud, R  Barlier, A  Vallette-Kasic, S  Saveanu, A  Guillet, MP  Simonin, G  Enjalbert, A  Valensi, P  Brue, T 
Citation: Reynaud R, etal., J Clin Endocrinol Metab. 2005 Aug;90(8):4880-7. Epub 2005 Jun 7.
RGD ID: 1601504
Pubmed: PMID:15941866   (View Abstract at PubMed)
DOI: DOI:10.1210/jc.2005-0119   (Journal Full-text)

CONTEXT: PROP1 gene mutations are usually associated with childhood onset GH and TSH deficiencies, whereas gonadotroph deficiency is diagnosed at pubertal age. OBJECTIVES: We report a novel PROP1 mutation revealed by familial normosmic hypogonadotropic hypogonadism. We performed in vitro transactivation and DNA binding experiments to study functional consequences of this mutation. SETTING: Three brothers were followed in the Department of Endocrinology of a French university hospital. PATIENTS: These patients from a consanguineous kindred were referred for cryptorchidism and/or delayed puberty. RESULTS: Initial investigations revealed hypogonadotropic hypogonadism. One of the patients had psychomotor retardation, intracranial hypertension, and minor renal malformations. The brothers reached normal adult height and developed GH and TSH deficiencies after age 30. A novel homozygous nonsense mutation (W194X) was found in the PROP1 gene, indicating that the protein is truncated in its transactivation domain. Transfection studies confirmed the deleterious effect of this mutation, whose transactivation capacity was only 34.4% of that of the wild-type. Unexpectedly altered DNA-binding properties suggested that the C-terminal end of the factor plays a role in protein-DNA interaction. CONCLUSIONS: PROP1 mutations should be considered among the growing number of genetic causes of initially isolated hypogonadotropic hypogonadism. This report extends the phenotype variability associated with PROP1 mutations.



Disease Annotations    
hypogonadism  (IAGP,ISO)

Objects Annotated

Genes (Rattus norvegicus)
Prop1  (PROP paired-like homeobox 1)

Genes (Mus musculus)
Prop1  (paired like homeodomain factor 1)

Genes (Homo sapiens)
PROP1  (PROP paired-like homeobox 1)


Additional Information