title: Identification of a differentially expressed RNA helicase by gene trapping.
abstract: A mouse line was generated that expressed a gene trap reporter construct, betageo, in a dynamic pattern during embryonic development. Differential expression was seen within the developing eyes, limbs, heart, neural tube, and skeleton. Two transcripts were cloned that contained endogenous sequences fused to the gene trap vector sequence. Analysis of the endogenous sequences revealed that the reporter integrated within a gene belonging to a small group of eukaryotic superfamily I helicases. Unexpectedly, the majority of transcripts produced from the trapped locus were not affected by the insertion of the reporter. Although the function of the trapped helicase gene is unknown, its complex transcription patterns and widespread spatial-temporal distribution suggest that the gene product plays a role in RNA metabolism in multiple tissues and organs within the developing embryo.
authors.affiliation: Department of Biochemistry and Molecular Biology, University of Texas M. D. Anderson Cancer Center, Houston, Texas, 77030, USA.
authors.forename: D S
authors.initials: DS
authors.lastname: Wagner
authors.forename: L
authors.initials: L
authors.lastname: Gan
authors.forename: W H
authors.initials: WH
authors.lastname: Klein
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D001842:Bone and Bones / Q000196:embryology / Q000201:enzymology; D001921:Brain / Q000201:enzymology; D002460:Cell Line; D003001:Cloning, Molecular; D017124:Conserved Sequence; D005314:Embryonic and Fetal Development; D018507:Gene Expression Regulation, Developmental; D015971:Gene Expression Regulation, Enzymologic; D017930:Genes, Reporter; D005821:Genetic Techniques; D006801:Humans; D008648:Mesoderm / Q000201:enzymology / Q000502:physiology; D051379:Mice; D008969:Molecular Sequence Data; D009154:Mutation; D016366:Open Reading Frames; D020365:RNA Helicases / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism*; D011993:Recombinant Fusion Proteins / Q000096:biosynthesis / Q000378:metabolism; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D014158:Transcription, Genetic; D014162:Transfection; D001616:beta-Galactosidase / Q000235:genetics
chemical_list: D011993:Recombinant Fusion Proteins; D001616:beta-Galactosidase; D020365:RNA Helicases