Post Translational Modifications | Phosphorylated at Ser-42 and Ser-44 by PRKCE.phosphorylation increases myocardium contractile dysfunction. Phosphorylated at Ser-23 and Ser-24 by PRKD1.phosphorylation reduces myofilament calcium sensitivity. Phosphorylated preferentially at Thr-31. Phosphorylation by STK4/MST1 alters its binding affinity to TNNC1 (cardiac Tn-C) and TNNT2 (cardiac Tn-T). |
Function | Troponin I is the inhibitory subunit of troponin, the thin filament regulatory complex which confers calcium-sensitivity to striated muscle actomyosin ATPase activity. |
Protein Name | Troponin I - Cardiac MuscleCardiac Troponin I |
Database Links | Reactome: R-HSA-390522Reactome: R-HSA-5578775 |
Alternative Protein Names | Troponin I - Cardiac Muscle proteinCardiac Troponin I proteinTNNI3 proteinTNNC1 protein |
Information sourced from Uniprot.org