2000/03/07 by Ciro Abbondanza · 1 citation
Biochemistry, Genetics and Molecular Biology · Computer Science · #BRCA gene mutations in cancer #Computational Drug Discovery Methods #Bioinformatics and Genomic Networks
paper · doi:10.1073/pnas.050015697
openalex publication_date 2000/03/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Co-immunoprecipitation experiments in cell extract from cultured cells or target tissues indicated that estrogen receptor was complexed with the retinoblastoma binding protein RIZ in a ligand-dependent manner. Mapping of interaction sites indicated that in both proteins the same regions and motifs responsible for the interaction of transcriptional co-activator and nuclear receptors were involved. In cultured cells, estradiol induced a redistribution of RIZ protein within the nucleus and in the cytoplasm. A similar effect was produced in vivo, in prepuberal rat endometrium, by administration of a physiological dose of estradiol. Therefore, RIZ protein could be a specific effector of estrogen action downstream of the hormone-receptor interaction, presumably involved in proliferation control.