0000000000234499

AUTHOR

David E. Housman

showing 3 related works from this author

Functional characterization of ORCTL2--an organic cation transporter expressed in the renal proximal tubules.

1998

AbstractChromosome 11p15.5 harbors a gene or genes involved in Beckwith-Wiedemann syndrome that confer(s) susceptibility to Wilms' tumor, rhabdomyosarcoma, and hepatoblastoma. We have previously identified a transcript at 11p15.5 which encodes a putative membrane transport protein, designated organic cation transporter-like 2 (ORCTL2), that shares homology with tetracycline resistance proteins and bacterial multidrug resistance proteins. In this report, we have investigated the transport properties of ORCTL2 and show that this protein can confer resistance to chloroquine and quinidine when overexpressed in bacteria. Immunohistochemistry analyses performed with anti-ORCTL2 polyc.onal antibod…

Beckwith-Wiedemann SyndromeOrganic Cation Transport ProteinsTranscription GeneticMolecular Sequence DataBiophysicsTransfectionBiochemistryHomology (biology)11p15.5Kidney Tubules ProximalStructural BiologyGeneticsmedicineAnimalsHumansMolecular BiologyGeneTetracycline/H+ antiporterKidneyOrganic cation transport proteinsbiologyBacteriaBase SequenceMembrane transport proteinOrganic cation transporterMultidrug resistance-associated protein 2Chromosomes Human Pair 11Tetracycline ResistanceOrganic cation transporter like-2Chromosome MappingMembrane ProteinsBiological TransportChloroquineCell BiologyApical membraneTetracyclineMolecular biologyQuinidineDrug Resistance MultipleRecombinant ProteinsKineticsmedicine.anatomical_structureBiochemistryOligodeoxyribonucleotidesCOS Cellsbiology.proteinImmunohistochemistryCarrier ProteinsFEBS letters
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Functional characterization of human nucleosome assembly protein-2 (NAP1L4) suggests a role as a histone chaperone.

1997

Abstract Histones are thought to play a key role in regulating gene expression at the level of DNA packaging. Recent evidence suggests that transcriptional activation requires competition of transcription factors with histones for binding to regulatory regions and that there may be several mechanisms by which this is achieved. We have characterized a human nucleosome assembly protein, NAP-2, previously identified by positional cloning at 11p15.5, a region implicated in several disease processes including Wilms tumor (WT) etiology. The deduced amino acid sequence of NAP-2 indicates that it encodes a protein with a potential nuclear localization motif and two clusters of highly acidic residue…

NAP1L4DNA ComplementaryNucleosome assemblyPositional cloningMolecular Sequence DataMice NudeWilms TumorHistonesMicemental disordersGeneticsNucleosomeAnimalsHumansAmino Acid SequenceCloning MolecularRegulation of gene expressionbiologyBase Sequencemusculoskeletal neural and ocular physiologyfungiGene Transfer TechniquesNuclear ProteinsMolecular biologyRecombinant ProteinsChromatinCell biologyNucleosomesDNA-Binding ProteinsHistoneChaperone (protein)biology.proteinpsychological phenomena and processesMolecular ChaperonesProtein BindingSubcellular FractionsGenomics
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Divergently Transcribed Overlapping Genes Expressed in Liver and Kidney and Located in the 11p15.5 Imprinted Domain

1998

Human chromosomal band 11p15.5 has been shown to contain genes involved in the development of several pediatric and adult tumors and in Beckwith-Wiedemann syndrome (BWS). Overlapping P1 artificial chromosome clones from this region have been used as templates for genomic sequencing in an effort to identify candidate genes for these disorders. PowerBLAST identified several matches with expressed sequence tags (ESTs) from fetal brain and liver cDNA libraries. Northern blot analysis indicated that two of the genes identified by these ESTs encode transcripts of 1-1.5 kb with predominant expression in fetal and adult liver and kidney. With RT-PCR and RACE, full-length transcripts were isolated f…

Candidate geneBeckwith-Wiedemann SyndromeDNA ComplementaryTranscription GeneticDNA Mutational AnalysisMolecular Sequence DataBiologyKidneyWilms TumorGenomic ImprintingMiceExonGene mappingGene expressionGenes OverlappingGeneticsAnimalsHumansAmino Acid SequenceGeneGeneticsExpressed sequence tagBase SequencecDNA libraryChromosomes Human Pair 11Membrane ProteinsMolecular biologyLiverCarrier ProteinsGenomic imprintingGenomics
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