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Identification of the cellular protein encoded by the human Wilms' tumor (WT1) gene

par Telerman, Adam ;Amson, Robert ;Dodemont, Huub;Degraef, Chantal ;Galand, Paul ;Bauwens, Serge;Van Oostveldt, Patrick
Référence Oncogene, 7, 12, page (2545-2548)
Publication Publié, 1992-12

Article révisé par les pairs

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Résumé :

A putative tumor-suppressor gene (wt1) located at chromosome 11p13 and involved in Wilms' tumor development has recently been identified as a zinc finger polypeptide-encoding gene. The purpose of this study was to characterize the protein encoded by the human wt1 gene. The region spanning the entire zinc finger domain was amplified by polymerase chain reaction (PCR) and subcloned in the pATH 3 expression vector. Polyclonal antibodies against the fused TrpE-WT protein were raised. These antibodies immunoprecipitated a 49- to 51-kDa protein from hematopoietic tumor cells labeled in vivo with [35S]methionine. Subcellular fractionation and immunohistochemistry followed by confocal microscopy indicated that the Wilms' tumor gene product (WT1) is mainly localized within the nucleus.