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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6111
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pubmed:dateCreated |
1987-4-27
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pubmed:abstractText |
Immunoglobulin (Ig) and T-cell antigen receptor genes rearrange through identical heptamer-nonamer recognition sequences during entry of cells into the B or T lymphoid lineage. A similar enzymatic machinery may be used to perform these highly cell-specific events in these two types of lymphoid cells. We have investigated what the signal may be that triggers the rearrangement of one or other of the receptor genes in B or T cells. Mice from three transgenic lines carrying two, four or twenty copies of the unrearranged chicken lambda light-chain locus were analysed. In all three lines the chicken Ig transgene rearranges in B cells; in the line with 20 copies, a rearranged fragment can also be detected in thymus DNA. We conclude that the inserted chicken light-chain locus in its natural configuration contains target sequences that permit specific rearrangement in mouse lymphoid B cells, but that this precise differentiation step may be deregulated in thymic cells when the physiological level of relevant information is experimentally altered.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/DNA,
http://linkedlifedata.com/resource/pubmed/chemical/DNA Restriction Enzymes,
http://linkedlifedata.com/resource/pubmed/chemical/Immunoglobulin lambda-Chains,
http://linkedlifedata.com/resource/pubmed/chemical/Immunoglobulins,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Antigen, T-Cell
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pubmed:status |
MEDLINE
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pubmed:issn |
0028-0836
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
326
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
409-11
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3031506-Animals,
pubmed-meshheading:3031506-B-Lymphocytes,
pubmed-meshheading:3031506-Chickens,
pubmed-meshheading:3031506-DNA,
pubmed-meshheading:3031506-DNA Restriction Enzymes,
pubmed-meshheading:3031506-Immunoglobulin lambda-Chains,
pubmed-meshheading:3031506-Immunoglobulins,
pubmed-meshheading:3031506-Male,
pubmed-meshheading:3031506-Mice,
pubmed-meshheading:3031506-Mice, Inbred C57BL,
pubmed-meshheading:3031506-Mice, Inbred CBA,
pubmed-meshheading:3031506-Receptors, Antigen, T-Cell,
pubmed-meshheading:3031506-Recombination, Genetic,
pubmed-meshheading:3031506-T-Lymphocytes
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pubmed:articleTitle |
Rearrangement of a chicken immunoglobulin gene occurs in the lymphoid lineage of transgenic mice.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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