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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1990-4-5
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pubmed:abstractText |
In the majority of Philadelphia (Ph)-positive chronic myeloid leukemia (CML) patients, the c-abl gene is fused to the bcr gene, resulting in the transcription of an 8.5 kb chimeric bcr-abl mRNA, which is translated into a p210bcr-abl fusion protein. In about 50% of the Ph-positive acute lymphoid leukemias (ALL), the bcr-abl gene fusion is identical to CML, while in 50% an alternative fusion between these two genes occurs, in which the central bcr-sequences are absent. This results in transcription of a 7 kb bcr-abl mRNA, encoding a P190bcr-abl fusion protein. Cloning and sequencing of the chimeric part of bcr-abl cDNAs from two Ph-positive CML patients in chronic phase showed that in one patient, as in the Ph-positive ALL, all central bcr sequences are absent, while in the other patient, part of the bcr central sequences are deleted. Therefore, we speculate that the presence of the 7 kb chimeric ALL type mRNA in one of the patients is not sufficient to drive an acute rather than a chronic leukemic process in this case. The deletions of the central bcr-sequences described here define the minimal sequence requirement of the bcr-abl fusion gene in CML patients so far.
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pubmed:commentsCorrections | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
|
pubmed:issn |
0006-4971
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
75
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
1146-53
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:2407300-Amino Acid Sequence,
pubmed-meshheading:2407300-Base Sequence,
pubmed-meshheading:2407300-Blotting, Southern,
pubmed-meshheading:2407300-Chromosome Mapping,
pubmed-meshheading:2407300-Fusion Proteins, bcr-abl,
pubmed-meshheading:2407300-Humans,
pubmed-meshheading:2407300-Leukemia, Myelogenous, Chronic, BCR-ABL Positive,
pubmed-meshheading:2407300-Molecular Sequence Data,
pubmed-meshheading:2407300-Molecular Weight,
pubmed-meshheading:2407300-Polymerase Chain Reaction,
pubmed-meshheading:2407300-Precursor Cell Lymphoblastic Leukemia-Lymphoma,
pubmed-meshheading:2407300-RNA, Messenger,
pubmed-meshheading:2407300-Restriction Mapping,
pubmed-meshheading:2407300-Transcription, Genetic,
pubmed-meshheading:2407300-Translocation, Genetic
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pubmed:year |
1990
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pubmed:articleTitle |
Chronic myeloid leukemia may be associated with several bcr-abl transcripts including the acute lymphoid leukemia-type 7 kb transcript.
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pubmed:affiliation |
Department of Cell Biology and Genetics, Erasmus University, Rotterdam, The Netherlands.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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