| Entrez gene ID | | 7135 |
| Official gene symbol | | TNNI1 |
| Full name | | troponin I type 1 (skeletal, slow) |
| Aliases | | ,DKFZp451O223,SSTNI,TNN1, |
| Gene summary | | Troponin proteins associate with tropomyosin and regulate the calcium sensitivity of the myofibril contractile apparatus of striated muscles. Troponin I (TnI), along with troponin T (TnT) and troponin C (TnC), is one of 3 subunits that form the troponin complex of the thin filaments of striated muscle. TnI is the inhibitory subunit; blocking actin-myosin interactions and thereby mediating striated muscle relaxation. The TnI subfamily contains three genes: TnI-skeletal-fast-twitch, TnI-skeletal-slow-twitch, and TnI-cardiac. The TnI-fast and TnI-slow genes are expressed in fast-twitch and slow-twitch skeletal muscle fibers, respectively, while the TnI-cardiac gene is expressed exclusively in cardiac muscle tissue. This gene encodes the Troponin-I-skeletal-slow-twitch protein. This gene is expressed in cardiac and skeletal muscle during early development but is restricted to slow-twitch skeletal muscle fibers in adults. The encoded protein prevents muscle contraction by inhibiting calcium-mediated conformational changes in actin-myosin complexes. [provided by RefSeq] |
| Location | | Chromosome: 1 Locus: 1q31.3 |
| Gene position | | 201390874 - 201372895 Map Viewer |
| Gene orientation | | minus |
| Gene size | | 17980 bp |
| Gene sequence |
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| OMIM ID | | 191042 |
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