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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1990-3-28
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pubmed:abstractText |
Drosophila fasciclin I is a homophilic cell adhesion molecule expressed in the developing embryo on the surface of a subset of fasciculating CNS axons, all PNS axons, and some nonneuronal cells. We have identified protein-null mutations in the fasciclin I (fas I) gene, and show that these mutants are viable and do not display gross defects in nervous system morphogenesis. The Drosophila Abelson (abl) proto-oncogene homolog encodes a cytoplasmic tyrosine kinase that is expressed during embryogenesis primarily in developing CNS axons; abl mutants show no gross defects in CNS morphogenesis. However, embryos doubly mutant for fas I and abl display major defects in CNS axon pathways, particularly in the commissural tracts where expression of these two proteins normally overlaps. The double mutant shows a clear defect in growth cone guidance; for example, the RP1 growth cone (normally fas I positive) does not follow its normal path across the commissure.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cell Adhesion Molecules, Neuronal,
http://linkedlifedata.com/resource/pubmed/chemical/Protein-Tyrosine Kinases,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins c-abl,
http://linkedlifedata.com/resource/pubmed/chemical/fasciclin I
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0092-8674
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
23
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pubmed:volume |
60
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
565-75
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:2406026-Alleles,
pubmed-meshheading:2406026-Animals,
pubmed-meshheading:2406026-Axons,
pubmed-meshheading:2406026-Cell Adhesion Molecules, Neuronal,
pubmed-meshheading:2406026-Chromosome Mapping,
pubmed-meshheading:2406026-Drosophila,
pubmed-meshheading:2406026-Morphogenesis,
pubmed-meshheading:2406026-Mutation,
pubmed-meshheading:2406026-Nervous System,
pubmed-meshheading:2406026-Nucleic Acid Hybridization,
pubmed-meshheading:2406026-Plasmids,
pubmed-meshheading:2406026-Protein-Tyrosine Kinases,
pubmed-meshheading:2406026-Proto-Oncogene Proteins,
pubmed-meshheading:2406026-Proto-Oncogene Proteins c-abl,
pubmed-meshheading:2406026-Proto-Oncogenes,
pubmed-meshheading:2406026-Transcription, Genetic
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pubmed:year |
1990
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pubmed:articleTitle |
Genetic analysis of a Drosophila neural cell adhesion molecule: interaction of fasciclin I and Abelson tyrosine kinase mutations.
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pubmed:affiliation |
Howard Hughes Medical Institute, University of California, Berkeley 94720.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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