Description
Product Characteristics:
P73 protein is a structural and functional homologue of p53, a tumor suppressor gene. In this study, The p73 protein, p19ras, by the yeast two-hybrid screening method. Alternative splicing of the proto-oncogene H-ras pre-mRNA has led to two distinct transcripts, Ras proteins are known to be small membrane-localized guanine nucleotide-binding proteins. However, unlike other Ras proteins, p19ras is localized in the nucleus and the cytosol and its interaction with P73 protein occurred exclusively in the nucleus. Oncogenic MDM2 (mouse double minutes 2) is a known repressor of p73 transcriptional activity. In this study, when p19ras was bound to MDM2, it further inhibited the association of MDM2 to the p73 protein. Therefore, this study presents a novel pathway of Ras signaling that occurs in the nucleus, involving p19ras and p73.
Subcellular location: Cytoplasm, Nucleus
Synonyms: p73Tyr99, TP73phospho Y99, p53 like transcription factor, p53 Related Protein, p73, TP 73, TP73, Tumor Protein p73, P73_HUMAN.
Target Information: This gene encodes a member of the p53 family of transcription factors involved in cellular responses to stress and development. It maps to a region on chromosome 1p36 that is frequently deleted in neuroblastoma and other tumors, and thought to contain multiple tumor suppressor genes. The demonstration that this gene is monoallelically expressed (likely from the maternal allele), supports the notion that it is a candidate gene for neuroblastoma. Many transcript variants resulting from alternative splicing and/or use of alternate promoters have been found for this gene, but the biological validity and the full-length nature of some variants have not been determined. [provided by RefSeq, Feb 2011]