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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1992-6-26
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pubmed:abstractText |
Current models suggest that tissue-specific genes are arranged in discrete, independently controlled segments of chromatin referred to as regulatory domains. Transition from a closed to open chromatin structure may be an important step in the regulation of gene expression. To determine whether the human alpha-globin cluster, like the beta-globin cluster, lies within a discrete, erythroid-specific domain, we have examined the long-range genomic organization and chromatin structure around this region. The alpha genes lie adjacent to at least four widely expressed genes. The major alpha-globin regulatory element lies 40 kb away from the cluster within an intron of one of these genes. Therefore, unlike the beta cluster, cis-acting sequences controlling alpha gene expression are dispersed within a region of chromatin that is open in both erythroid and nonerythroid cells. This implies a difference in the hierarchical control of alpha- and beta-globin expression.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0092-8674
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
29
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pubmed:volume |
69
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
781-93
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pubmed:dateRevised |
2009-9-29
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pubmed:meshHeading |
pubmed-meshheading:1591777-Animals,
pubmed-meshheading:1591777-Blotting, Northern,
pubmed-meshheading:1591777-Cell Line,
pubmed-meshheading:1591777-Chromatin,
pubmed-meshheading:1591777-Deoxyribonuclease I,
pubmed-meshheading:1591777-Gene Expression Regulation,
pubmed-meshheading:1591777-Globins,
pubmed-meshheading:1591777-Humans,
pubmed-meshheading:1591777-Introns,
pubmed-meshheading:1591777-Methylation,
pubmed-meshheading:1591777-Multigene Family,
pubmed-meshheading:1591777-Regulatory Sequences, Nucleic Acid,
pubmed-meshheading:1591777-Repetitive Sequences, Nucleic Acid,
pubmed-meshheading:1591777-Tumor Cells, Cultured
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pubmed:year |
1992
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pubmed:articleTitle |
Cis-acting sequences regulating expression of the human alpha-globin cluster lie within constitutively open chromatin.
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pubmed:affiliation |
MRC Molecular Haematology Unit, Institute of Molecular Medicine, John Radcliffe Hospital, Oxford, England.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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