Identification and molecular analysis of BANP

• Published in: Gene 2000-08, Vol.253 (2), p.189-196
• Main Authors: Birot, Anne-Marie, Duret, Laurent, Bartholin, Laurent, Santalucia, Bénédicte, Tigaud, Isabelle, Magaud, Jean-Pierre, Rouault, Jean-Pierre
• Format: Article
• Language: English
• Subjects: 16q24; 3T3 Cells; Amino Acid Sequence; ANA; Animals; BANP gene; Base Sequence; Blotting, Northern; BTG; BTG3; BTG3 gene; Cell Cycle Proteins; Cell Nucleus - metabolism; chromosome 16; Chromosome Mapping; Chromosomes, Human, Pair 16 - genetics; Cloning, Molecular; DNA - chemistry; DNA - genetics; DNA, Complementary - chemistry; DNA, Complementary - genetics; DNA-Binding Proteins; Epitopes; Gene Expression; HeLa Cells; Humans; In Situ Hybridization, Fluorescence; Life Sciences; Luciferases - genetics; Luciferases - metabolism; Mice; Microscopy, Fluorescence; Molecular Sequence Data; Nuclear Proteins - genetics; Nuclear Proteins - isolation & purification; Nuclear Proteins - metabolism; Oligopeptides; Peptides - genetics; Promoter Regions, Genetic - genetics; Protein Binding; rBTG3; Recombinant Fusion Proteins - genetics; Recombinant Fusion Proteins - metabolism; RNA - genetics; RNA - metabolism; Saccharomyces cerevisiae - genetics; Sequence Alignment; Sequence Analysis, DNA; Sequence Homology, Amino Acid; Tissue Distribution; Two-Hybrid System Techniques
• ISSN: 0378-1119; 1879-0038
• DOI: 10.1016/S0378-1119(00)00244-4

BTG3 belongs to a family of structurally related genes whose biochemical functions remain elusive. In order to investigate the mechanism underlying BTG3-mediated functions, we tried to identify BTG3 potential partners. The use of the yeast ‘two-hybrid system’, with BTG3 as bait, enabled us to isolate BANP ( B TG3 A ssociated N uclear P rotein). Other commonly used protein-binding assays did not confirm this yeast interaction. However, BANP had never been described before, and this prompted us to further characterise this gene. In this paper, we present data on its molecular organization in mouse, then we speculate on the nature of this nuclear protein, and finally we localise BANP on the human chromosome 16q24 subregion; we discuss the fact that frequent loss of heterozygosity within this region has been observed in different tumours.