Cloning of PC3B, a novel member of the PC3/BTG/TOB family of growth inhibitory genes, highly expressed in the olfactory epithelium.
Genomics
; 68(3): 253-63, 2000 Sep 15.
Article
en En
| MEDLINE
| ID: mdl-10995567
ABSTRACT
We identified in the EST database murine and human sequences similar, but not identical, to the members of the PC3/BTG/TOB family of cell cycle inhibitors. A conserved domain (aa 50-68) of the PC3 protein, the prototype member of the family, was used as a query. That domain has been shown by us to be necessary for the antiproliferative activity of PC3. A murine EST clone and a highly homologous human EST clone, containing the entire ORF, were chosen for sequencing. Comparison to databases and a phylogenetic tree analysis indicated that these EST clones are the mouse and human homologues of a gene that represents a novel member of the PC3/BTG/TOB family. This gene, named PC3B, is endowed with marked antiproliferative activity, being able to induce G(1) arrest, and is highly expressed in testis, in oocyte, and in preimplantation embryos. Analysis of its expression during murine development indicated a specific localization in the olfactory epithelium at midgestation, suggesting that PC3B might be involved in the differentiation of this neuronal structure. Human PC3B mapped to chromosome 11q23, as indicated by radiation hybrid analysis.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Mucosa Olfatoria
/
Proteínas de Ciclo Celular
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Genomics
Asunto de la revista:
GENETICA
Año:
2000
Tipo del documento:
Article
País de afiliación:
Italia