title: Structural organization and chromosomal localization of the human ribosomal protein L9 gene.
abstract: The intron-containing gene for the human ribosomal protein L9 has been cloned, sequenced and localized. The gene is approximately 5.5 kb in length and contains 8 exons. Splice sites follow the AG/GT consensus rule. The message for human rpL9 is 712 nt in length and is detected in all tissues examined. In the adult, expression is highest in retina and liver while brain shows highest expression among the fetal tissues tested. The transcription start site contains an oligopyrimidine tract, TTCTTTCTT, similar to those found in other ribosomal protein genes. As in other previously characterized ribosomal protein genes, a TATA box is absent from the 5' flanking region but a number of elements recognized by common transcription factors are present including Sp1 sites, CACCC boxes, inverted CCAAT boxes, and GATA elements. Another possible element of interest in the rpL9 5' flanking region is RFX1 also found in the well characterized rat rpL30 promoter. The gene was mapped by fluorescent in situ hybridization to band 13p of chromosome 4. At least 8 possible pseudogenes are present in the human genome, one of which is on Xp. As assessed by Southern 'Zoo-blot' analysis and direct cDNA sequence comparison, the human ribosomal protein L9 gene, like other ribosomal protein genes, is highly conserved among mammals.
authors.affiliation: Laboratory of Retinal Cell and Molecular Biology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA.
authors.forename: K
authors.initials: K
authors.lastname: Mazuruk
authors.forename: T J
authors.initials: TJ
authors.lastname: Schoen
authors.forename: G J
authors.initials: GJ
authors.lastname: Chader
authors.forename: T
authors.initials: T
authors.lastname: Iwata
authors.forename: I R
authors.initials: IR
authors.lastname: Rodriguez
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D001665:Binding Sites; D015139:Blotting, Southern; D002874:Chromosome Mapping; D002894:Chromosomes, Human, Pair 4; D003001:Cloning, Molecular; D016384:Consensus Sequence; D017124:Conserved Sequence; D017931:DNA Primers; D004268:DNA-Binding Proteins / Q000378:metabolism; D005091:Exons; D006801:Humans; D007438:Introns; D051379:Mice; D008969:Molecular Sequence Data; D009928:Organ Specificity; D016133:Polymerase Chain Reaction; D011401:Promoter Regions, Genetic; D051381:Rats; D011994:Recombinant Proteins / Q000096:biosynthesis; D015183:Restriction Mapping; D012269:Ribosomal Proteins / Q000096:biosynthesis / Q000235:genetics*; D012689:Sequence Homology, Nucleic Acid; D014158:Transcription, Genetic
chemical_list: D017931:DNA Primers; D004268:DNA-Binding Proteins; D011994:Recombinant Proteins; D012269:Ribosomal Proteins; C049650:ribosomal protein L9