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  • 1
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2001-02-24
    Description: One of the biggest obstacles to gene therapy is the delivery of the therapeutic gene to the target tissue so that it is appropriately expressed. In his Perspective, Willard looks at the potential advantages of using a human artificial chromosome to maintain expression of a therapeutic gene and discusses some of the hurdles yet to be overcome before this gene delivery system can be tried out in the clinic.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Willard, H F -- New York, N.Y. -- Science. 2000 Nov 17;290(5495):1308-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Center for Human Genetics at Case Western Reserve University and the Research Institute of Universi Hospitals of Cleveland, Cleveland, OH 44106, USA. hfw@po.CWRU.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11185406" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Centromere/chemistry/genetics/physiology ; *Chromosomes, Artificial, Human/genetics/physiology/ultrastructure ; Chromosomes, Artificial, Mammalian ; DNA, Satellite/genetics ; Gene Expression ; Gene Transfer Techniques ; *Genetic Therapy ; Genetic Vectors ; Humans ; Mice
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2001-10-06
    Description: The definition of centromeres of human chromosomes requires a complete genomic understanding of these regions. Toward this end, we report integration of physical mapping, genetic, and functional approaches, together with sequencing of selected regions, to define the centromere of the human X chromosome and to explore the evolution of sequences responsible for chromosome segregation. The transitional region between expressed sequences on the short arm of the X and the chromosome-specific alpha satellite array DXZ1 spans about 450 kilobases and is satellite-rich. At the junction between this satellite region and canonical DXZ1 repeats, diverged repeat units provide direct evidence of unequal crossover as the homogenizing force of these arrays. Results from deletion analysis of mitotically stable chromosome rearrangements and from a human artificial chromosome assay demonstrate that DXZ1 DNA is sufficient for centromere function. Evolutionary studies indicate that, while alpha satellite DNA present throughout the pericentromeric region of the X chromosome appears to be a descendant of an ancestral primate centromere, the current functional centromere based on DXZ1 sequences is the product of the much more recent concerted evolution of this satellite DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schueler, M G -- Higgins, A W -- Rudd, M K -- Gustashaw, K -- Willard, H F -- HD07518/HD/NICHD NIH HHS/ -- HD32111/HD/NICHD NIH HHS/ -- HG00107/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2001 Oct 5;294(5540):109-15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Case Western Reserve University School of Medicine and Center for Human Genetics, and, Research Institute, University Hospitals of Cleveland, Cleveland, OH 44106, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11588252" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Cell Line ; Centromere/chemistry/genetics/*physiology ; Chromosome Segregation ; Chromosomes, Artificial, Bacterial ; Chromosomes, Artificial, Human ; Computer Simulation ; Contig Mapping ; Crossing Over, Genetic ; *DNA, Satellite/chemistry/genetics/physiology ; Evolution, Molecular ; Humans ; Interspersed Repetitive Sequences ; Models, Genetic ; Phylogeny ; Repetitive Sequences, Nucleic Acid ; Restriction Mapping ; Sequence Analysis, DNA ; Sequence Deletion ; Sequence Tagged Sites ; Transfection ; Turner Syndrome/genetics ; X Chromosome/genetics/*physiology/ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2002-05-11
    Description: X chromosome inactivation is the silencing mechanism eutherian mammals use to equalize the expression of X-linked genes between males and females early in embryonic development. In the mouse, genetic control of inactivation requires elements within the X inactivation center (Xic) on the X chromosome that influence the choice of which X chromosome is to be inactivated in individual cells. It has long been posited that unidentified autosomal factors are essential to the process. We have used chemical mutagenesis in the mouse to identify specific factors involved in X inactivation and report two genetically distinct autosomal mutations with dominant effects on X chromosome choice early in embryogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Percec, Ivona -- Plenge, Robert M -- Nadeau, Joseph H -- Bartolomei, Marisa S -- Willard, Huntington F -- GM45441/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 May 10;296(5570):1136-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Cell and Developmental Biology, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12004136" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; Crosses, Genetic ; *Dosage Compensation, Genetic ; Female ; *Genes, Dominant ; Heterozygote ; Male ; Mice ; Mice, Inbred BALB C ; Mutagenesis ; *Mutation ; Pedigree ; Phenotype ; X Chromosome/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 1988-01-01
    Description: The multiple copies of the human ribosomal RNA genes (rDNA) are arranged as tandem repeat clusters that map to the middle of the short arms of chromosomes 13, 14, 15, 21, and 22. Concerted evolution of the gene family is thought to be mediated by interchromosomal recombination between rDNA repeat units, but such events would also result in conservation of the sequences distal to the rDNA on these five pairs of chromosomes. To test this possibility, a DNA fragment spanning the junction between rDNA and distal flanking sequence has been cloned and characterized. Restriction maps, sequence data, and gene mapping studies demonstrate that (i) the rRNA genes are transcribed in a telomere-to-centromere direction, (ii) the 5' end of the cluster and the adjacent non-rDNA sequences are conserved on the five pairs of chromosomes, and (iii) the 5' end of the cluster is positioned about 3.7 kb upstream from the transcription initiation site of the first repeat unit. The data support a model of concerted evolution by interchromosomal recombination.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Worton, R G -- Sutherland, J -- Sylvester, J E -- Willard, H F -- Bodrug, S -- Dube, I -- Duff, C -- Kean, V -- Ray, P N -- Schmickel, R D -- HD-13506/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1988 Jan 1;239(4835):64-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genetics Department, Hospital for Sick Children, Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3336775" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Evolution ; Chromosomes, Human, Pair 13 ; Chromosomes, Human, Pair 14 ; Chromosomes, Human, Pair 15 ; Chromosomes, Human, Pair 21 ; Chromosomes, Human, Pair 22 ; Cloning, Molecular ; DNA, Ribosomal/*genetics ; Genes ; Humans ; RNA, Ribosomal/*genetics ; Sequence Homology, Nucleic Acid ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 1992-10-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mandel, J L -- Monaco, A P -- Nelson, D L -- Schlessinger, D -- Willard, H F -- Chipperfield, M -- Pearson, P -- Gilna, P -- Cinkosky, M -- New York, N.Y. -- Science. 1992 Oct 2;258(5079):87-102.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INSERM, Strasbourg, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1439771" target="_blank"〉PubMed〈/a〉
    Keywords: *Chromosome Mapping ; Chromosomes, Human ; Female ; Genetic Linkage ; Genetic Markers ; *Genome, Human ; Humans ; Sex Chromosome Aberrations ; X Chromosome
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
    Publication Date: 2011-11-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, Winston A -- Amasino, Richard M -- Ares, Manuel Jr -- Banerjee, Utpal -- Bartel, Bonnie -- Corces, Victor G -- Drennan, Catherine L -- Elgin, Sarah C R -- Epstein, Irving R -- Fanning, Ellen -- Guillette, Louis J Jr -- Handelsman, Jo -- Hatfull, Graham F -- Hoy, Ronald Raymond -- Kelley, Darcy -- Leinwand, Leslie A -- Losick, Richard -- Lu, Yi -- Lynn, David G -- Neuhauser, Claudia -- O'Dowd, Diane K -- Olivera, Toto -- Pevzner, Pavel -- Richards-Kortum, Rebecca R -- Rine, Jasper -- Sah, Robert L -- Strobel, Scott A -- Walker, Graham C -- Walt, David R -- Warner, Isiah M -- Wessler, Sue -- Willard, Huntington F -- Zare, Richard N -- New York, N.Y. -- Science. 2011 Nov 11;334(6057):760-1. doi: 10.1126/science.334.6057.760-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22076362" target="_blank"〉PubMed〈/a〉
    Keywords: *Curriculum ; *Education, Premedical ; *Educational Status ; *School Admission Criteria ; *Schools, Medical ; Universities
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2003-04-26
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, R Sanders -- Willard, Huntington F -- Snyderman, Ralph -- New York, N.Y. -- Science. 2003 Apr 25;300(5619):549.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12714710" target="_blank"〉PubMed〈/a〉
    Keywords: *Delivery of Health Care ; *Health Care Reform ; *Health Planning ; Health Services ; Humans ; Insurance, Health, Reimbursement ; *Personal Health Services ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2010-03-20
    Description: The extent to which variation in chromatin structure and transcription factor binding may influence gene expression, and thus underlie or contribute to variation in phenotype, is unknown. To address this question, we cataloged both individual-to-individual variation and differences between homologous chromosomes within the same individual (allele-specific variation) in chromatin structure and transcription factor binding in lymphoblastoid cells derived from individuals of geographically diverse ancestry. Ten percent of active chromatin sites were individual-specific; a similar proportion were allele-specific. Both individual-specific and allele-specific sites were commonly transmitted from parent to child, which suggests that they are heritable features of the human genome. Our study shows that heritable chromatin status and transcription factor binding differ as a result of genetic variation and may underlie phenotypic variation in humans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2929018/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2929018/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McDaniell, Ryan -- Lee, Bum-Kyu -- Song, Lingyun -- Liu, Zheng -- Boyle, Alan P -- Erdos, Michael R -- Scott, Laura J -- Morken, Mario A -- Kucera, Katerina S -- Battenhouse, Anna -- Keefe, Damian -- Collins, Francis S -- Willard, Huntington F -- Lieb, Jason D -- Furey, Terrence S -- Crawford, Gregory E -- Iyer, Vishwanath R -- Birney, Ewan -- U54 HG004563/HG/NHGRI NIH HHS/ -- U54 HG004563-03/HG/NHGRI NIH HHS/ -- Z01 HG000024/HG/NHGRI NIH HHS/ -- Z01 HG000024-13/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2010 Apr 9;328(5975):235-9. doi: 10.1126/science.1184655. Epub 2010 Mar 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, Section of Molecular Genetics and Microbiology, University of Texas, Austin, TX 78712, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20299549" target="_blank"〉PubMed〈/a〉
    Keywords: African Continental Ancestry Group ; *Alleles ; Binding Sites ; Cell Line ; Chromatin/chemistry/*genetics/*metabolism ; Chromatin Immunoprecipitation ; Chromosomes, Human/genetics/metabolism ; Chromosomes, Human, X/genetics/metabolism ; Deoxyribonuclease I/metabolism ; European Continental Ancestry Group ; Female ; *Gene Expression Regulation ; *Genetic Variation ; Humans ; Male ; Nuclear Family ; Polymorphism, Single Nucleotide ; Protein Binding ; Regulatory Elements, Transcriptional ; Repressor Proteins/*metabolism ; Sequence Analysis, DNA ; Transcription Factors/*metabolism ; X Chromosome Inactivation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 1988-03-11
    Description: S100 protein is a calcium-binding protein found predominantly in the vertebrate nervous system. Genomic and complementary DNA probes were used in conjunction with a panel of rodent-human somatic cell hybrids to assign the gene for the beta subunit of S100 protein to the distal half of the long arm of human chromosome 21. This gene was identified as a candidate sequence which, when expressed in the trisomic state, may underlie the neurologic disturbances in Down syndrome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Allore, R -- O'Hanlon, D -- Price, R -- Neilson, K -- Willard, H F -- Cox, D R -- Marks, A -- Dunn, R J -- 140-17001/PHS HHS/ -- New York, N.Y. -- Science. 1988 Mar 11;239(4845):1311-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medical Genetics, University of Toronto, Ontario, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2964086" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Mapping ; *Chromosomes, Human, Pair 21 ; Cloning, Molecular ; Down Syndrome/*genetics ; Humans ; Macromolecular Substances ; Nucleic Acid Hybridization ; S100 Proteins/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
    Publication Date: 1988-04-15
    Description: The androgen receptor (AR) mediates the actions of male sex steroids. Human AR genomic DNA was cloned from a flow-sorted human X chromosome library by using a consensus nucleotide sequence from the DNA-binding domain of the family of nuclear receptors. The AR gene was localized on the human X chromosome between the centromere and q13. Cloned complementary DNA, selected with an AR-specific oligonucleotide probe, was expressed in monkey kidney (COS) cells and yielded a high-affinity androgen-binding protein with steroid-binding specificity corresponding to that of native AR. A predominant messenger RNA species of 9.6 kilobases was identified in human, rat, and mouse tissues known to contain AR and was undetectable in tissues lacking AR androgen-binding activity, including kidney and liver from androgen-insensitive mice. The deduced amino acid sequence of AR within the DNA-binding domain has highest sequence identity with the progesterone receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lubahn, D B -- Joseph, D R -- Sullivan, P M -- Willard, H F -- French, F S -- Wilson, E M -- HD04466/HD/NICHD NIH HHS/ -- HD16910/HD/NICHD NIH HHS/ -- HD21744/HD/NICHD NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1988 Apr 15;240(4850):327-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pediatrics, University of North Carolina, Chapel Hill 27599.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3353727" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Chromosome Mapping ; *Cloning, Molecular ; Codon ; *Genes ; Humans ; Molecular Sequence Data ; Receptors, Androgen/*genetics ; Sequence Homology, Nucleic Acid ; *X Chromosome
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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