RGD Reference Report - Molecular cloning and developmental expression of the rat cardiac-specific isoform of troponin I. - Rat Genome Database

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Molecular cloning and developmental expression of the rat cardiac-specific isoform of troponin I.

Authors: Martin, AF  Orlowski, J 
Citation: Martin AF and Orlowski J, J Mol Cell Cardiol 1991 May;23(5):583-8.
RGD ID: 730167
Pubmed: PMID:1886137   (View Abstract at PubMed)

Troponin I is the subunit of the troponin complex in striated muscle which inhibits actomyosin ATPase activity. We have isolated a full-length cDNA clone for rat cardiac troponin I and determined its nucleic acid sequence. The amino acid sequence deduced from this clone shows 88%-92% similarity with previously reported amino acid sequences for rabbit (Wilkinson and Grand, 1978) and bovine (Leszyk et al.) cardiac troponin I. Examination of cardiac troponin I mRNA abundance during development revealed a 15-fold induction in its expression in the adult heart compared to that in embryonic (14 day) heart muscle. Furthermore, expression of cardiac troponin I mRNA was restricted to heart muscle and was not detected in skeletal muscle at any developmental stage.

Gene Ontology Annotations    Click to see Annotation Detail View

Cellular Component
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
troponin complex  TAS 730167 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Tnni3  (troponin I3, cardiac type)


Additional Information