Identification of three novel mutations in the insulin receptor gene in type A insulin resistant patients

Type A insulin resistance syndrome is characterized by the association of ovarian hyperandrogenism, acanthosis nigricans, and seven insulin resistance. We have identified three novel mutant alleles of the insulin receptor gene in 3 patients with type A syndrome, a severe form of insulin resistance....

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Detalles Bibliográficos
Autores: Riqué S, Nogués C, Ibàñez L, Marcos MV, Ferragut J, Carrascosa A, Potau N
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2000
País:España
Institución:Fundació Sant Joan de Déu
Repositorio:r-FSJD. Repositorio Institucional de Producción Científica de la Fundació Sant Joan de Déu
OAI Identifier:oai:fsjd.fundanetsuite.com:p6791
Acceso en línea:https://fsjd.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=6791
Access Level:acceso abierto
Palabra clave:insulin receptor gene
insulin resistance
missense mutation
splice mutation
type A syndrome
Descripción
Sumario:Type A insulin resistance syndrome is characterized by the association of ovarian hyperandrogenism, acanthosis nigricans, and seven insulin resistance. We have identified three novel mutant alleles of the insulin receptor gene in 3 patients with type A syndrome, a severe form of insulin resistance. Two of the patients were sisters (A1, A2), 1 of them was a compound heterozygote for a mutation at the 3'-splice acceptor site of intron 21 (AG --> AA), and a missense mutation Val140Leu in exon 2. Her sister was a simple heterozygote for the 3'-splice acceptor mutation. The third patient (A3) was heterozygous for the missense mutation Ala1028Val in exon 17, in the consensus sequence for ATP binding.