title: Regional localization and developmental expression of the BCR gene in rodent brain.
abstract: The BCR gene is implicated in the development of Ph-positive leukemia through its fusion with the nonreceptor tyrosine kinase gene ABL. The normal 160 kDa Bcr protein has several functional domains, and recently one specific role for Bcr was established in the regulation of respiratory burst activity in white blood cells. Bcr expression levels are relatively constant throughout mouse development until adulthood in brain and in hematopoietic tissues, a pattern that is distinctly different from that of the functionally related n-chimerin gene. In the present study, RNA in situ hybridization was used to explore the normal cellular function of Bcr in rodent brain and hematopoietic organs. The data pinpoint the high bcr expression in the brain to the hippocampal pyramidal cell layer and the dentate gyrus, and to the piriform cortex and the olfactory nuclei, reflecting a potentially interesting function for Bcr in these highly specialized brain regions.
authors.affiliation: Department of Pathology, Childrens Hospital of Los Angeles, CA 90027, USA.
authors.forename: T
authors.initials: T
authors.lastname: Fioretos
authors.forename: J W
authors.initials: JW
authors.lastname: Voncken
authors.forename: T Z
authors.initials: TZ
authors.lastname: Baram
authors.forename: F
authors.initials: F
authors.lastname: Kamme
authors.forename: J
authors.initials: J
authors.lastname: Groffen
authors.forename: N
authors.initials: N
authors.lastname: Heisterkamp
mesh_terms: D000818:Animals; D001483:Base Sequence; D001921:Brain / Q000196:embryology / Q000254:growth & development*; D001923:Brain Chemistry / Q000235:genetics*; D015870:Gene Expression; D017403:In Situ Hybridization; D008099:Liver / Q000737:chemistry / Q000196:embryology / Q000254:growth & development; D051379:Mice; D008969:Molecular Sequence Data; D015513:Oncogene Proteins / Q000737:chemistry / Q000235:genetics*; D011505:Protein-Tyrosine Kinases; D011518:Proto-Oncogene Proteins; D051562:Proto-Oncogene Proteins c-bcr; D012313:RNA; D051381:Rats; D013154:Spleen / Q000737:chemistry / Q000196:embryology / Q000254:growth & development
chemical_list: D015513:Oncogene Proteins; D011518:Proto-Oncogene Proteins; D012313:RNA; D011505:Protein-Tyrosine Kinases; C496614:Bcr protein, mouse; D051562:Proto-Oncogene Proteins c-bcr