title: Genomic organization of the human retinoblastoma gene.
abstract: Sequence analysis of the human retinoblastoma gene cDNA revealed the presence of repeated elements in the form of direct repeats, inverted repeats and dyad symmetries. The clustering of the dyad symmetrical elements in some exons, #16 and #17, coincides with the hot spots for structural aberrations of the RB-1 locus previously observed in tumors. The RB-1 gene is divided into at least 27 exons distributed over 200 kbp. Three potential Sp1 binding sites are presented within 600 bp upstream of the translation start site. A DNA fragment containing these Sp1 sites ligated to a promotorless CAT gene can promote its transcription in transfected cell culture.
authors.affiliation: Department of Pediatrics, Microbiology and Ophthalmology, Children's Hospital of Los Angeles, University of Southern California School of Medicine 90027.
authors.forename: A
authors.initials: A
authors.lastname: T'Ang
authors.forename: K J
authors.initials: KJ
authors.lastname: Wu
authors.forename: T
authors.initials: T
authors.lastname: Hashimoto
authors.forename: W Y
authors.initials: WY
authors.lastname: Liu
authors.forename: R
authors.initials: R
authors.lastname: Takahashi
authors.forename: X H
authors.initials: XH
authors.lastname: Shi
authors.forename: K
authors.initials: K
authors.lastname: Mihara
authors.forename: F H
authors.initials: FH
authors.lastname: Zhang
authors.forename: Y Y
authors.initials: YY
authors.lastname: Chen
authors.forename: C
authors.initials: C
authors.lastname: Du
mesh_terms: D001483:Base Sequence; D002874:Chromosome Mapping; D004247:DNA / Q000032:analysis; D006801:Humans; D008969:Molecular Sequence Data; D009857:Oncogenes; D011401:Promoter Regions, Genetic; D012091:Repetitive Sequences, Nucleic Acid; D012175:Retinoblastoma / Q000235:genetics*
chemical_list: D004247:DNA