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Published on: February 22, 2015
Genomic organization and localization of mouse Nma/BAMBI: possible implications related to ameloblastoma formation
C Knight1, P Papagerakis, D Simmons
1University of Texas Health Science Center at San Antonio, Dental School, Department of Pediatric Dentistry, 7703 Floyd Curl Drive, MCS 7888, San Antonio, Texas 78229-3900, USA.
Abstract:
Our laboratory has determined the DNA sequence and transcriptional expression pattern of a mouse cDNA clone termed Nma/BAMBI. This clone encodes a highly conserved protein with 89% identity to the human homologue (termed Nma) and 78% similarity to the Xenopus homologue (termed BAMBI) at the predicted amino acid level. Nma/BAMBI encodes a 260-amino-acid transmembrane protein that has homology to the transforming growth factor (TGF) beta type I receptor family. This protein contains an extracellular ligand binding domain, a 24-amino-acid transmembrane domain, and a short intracellular domain that lacks a functional serine/threonine kinase domain. It is believed that Nma/BAMBI is important in the negative regulation of TGF beta signal transduction pathways during development and has implications in tumor progression. We have determined the genomic organization of the mouse Nma/BAMBI gene and confirmed the chromosomal mapping to human chromosome 10 and mouse chromosome 2. Furthermore, we report the production and utilization of an anti-peptide antibody in preliminary immunohistochemical analysis of an ameloblastoma.
