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Troponin I type 1 (skeletal, slow)
Symbols TNNI1 ; SSTNI; TNN1
External IDs OMIM191042 MGI105073 HomoloGene2462 GeneCards: TNNI1 Gene
RNA expression pattern
PBB GE TNNI1 205177 at tn.png
More reference expression data
Species Human Mouse
Entrez 7135 21952
Ensembl ENSG00000159173 ENSMUSG00000026418
UniProt P19237 Q9WUZ5
RefSeq (mRNA) NM_003281 NM_001112702
RefSeq (protein) NP_003272 NP_001106173
Location (UCSC) Chr 1:
201.37 – 201.4 Mb
Chr 1:
135.78 – 135.81 Mb
PubMed search [1] [2]

Troponin I, slow skeletal muscle is a protein that in humans is encoded by the TNNI1 gene.[1][2][3] It is a tissue-specific subtype of troponin I, which in turn is a part of the troponin complex.


  1. ^ Wade R, Eddy R, Shows TB, Kedes L (Aug 1990). "cDNA sequence, tissue-specific expression, and chromosomal mapping of the human slow-twitch skeletal muscle isoform of troponin I". Genomics 7 (3): 346–57. doi:10.1016/0888-7543(90)90168-T. PMID 2365354. 
  2. ^ Corin SJ, Juhasz O, Zhu L, Conley P, Kedes L, Wade R (May 1994). "Structure and expression of the human slow twitch skeletal muscle troponin I gene". J Biol Chem 269 (14): 10651–9. PMID 8144655. 
  3. ^ "Entrez Gene: TNNI1 troponin I type 1 (skeletal, slow)". 

Further reading[edit]