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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1985-6-13
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pubmed:abstractText |
Troponin-T (Tn-T) expression in developing hearts of axolotls, Ambystoma mexicanum, was studied with the use of polyclonal and monoclonal antibodies and SDS-polyacrylamide gel electrophoresis. In precontractile hearts (stage 32/33), Tn-T was present in addition to myosin, actin and tropomyosin as evidenced by the presence of the protein bands in SDS-gels and by indirect immunofluorescence. Tn-T was localized in amorphous collections at the peripheries of these precontractile cells. Hearts of normal and cardiac lethal mutant siblings were also analysed for Tn-T expression. No detectable differences in the quantity of protein present was observed by gel electrophoresis or by indirect immuno-fluorescence. The most striking difference concerned the localization of the protein. In normal hearts, Tn-T was primarily localized in the I-bands of organized myofibrils; however, in mutant cells the Tn-T was localized in amorphous collections at the cell peripheries suggesting a reduction of myofibrillar organization in these cells. No differences were observed in the contractile protein composition between normal and mutant embryonic hearts by gel electrophoresis experiments.
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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/Actins,
http://linkedlifedata.com/resource/pubmed/chemical/Antibodies, Monoclonal,
http://linkedlifedata.com/resource/pubmed/chemical/Tropomyosin,
http://linkedlifedata.com/resource/pubmed/chemical/Troponin,
http://linkedlifedata.com/resource/pubmed/chemical/Troponin T
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0022-0752
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
84
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1-17
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6442732-Actins,
pubmed-meshheading:6442732-Ambystoma,
pubmed-meshheading:6442732-Ambystoma mexicanum,
pubmed-meshheading:6442732-Animals,
pubmed-meshheading:6442732-Antibodies, Monoclonal,
pubmed-meshheading:6442732-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:6442732-Fluorescent Antibody Technique,
pubmed-meshheading:6442732-Heart,
pubmed-meshheading:6442732-Heart Defects, Congenital,
pubmed-meshheading:6442732-Immunodiffusion,
pubmed-meshheading:6442732-Microscopy, Fluorescence,
pubmed-meshheading:6442732-Myocardium,
pubmed-meshheading:6442732-Myofibrils,
pubmed-meshheading:6442732-Tropomyosin,
pubmed-meshheading:6442732-Troponin,
pubmed-meshheading:6442732-Troponin T
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pubmed:year |
1984
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pubmed:articleTitle |
Accumulation and localization of troponin-T in developing hearts of Ambystoma mexicanum.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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