catalog number :
MBS197045
products type :
Recombinant Protein
products full name :
Recombinant Human Cardiac Troponin I (TnI)
products short name :
Cardiac Troponin I (TnI)
other names :
troponin I, cardiac muscle; Troponin I, cardiac muscle; troponin I, cardiac muscle; troponin I type 3 (cardiac); Cardiac troponin I
other gene names :
TNNI3; TNNI3; CMH7; RCM1; cTnI; CMD2A; TNNC1; CMD1FF; MGC116817; TNNC1
uniprot entry name :
TNNI3_HUMAN
specificity :
Human Cardiac Troponin I (TnI)
purity :
Greater than 98% as determined by SDS-PAGE and RPHPLC.
form :
Sterile-filtered solution in 50mM Tris, pH 8.0 and 6M urea. Purified by proprietary chromatographic techniques.
storage stability :
Although stable at 4 degree C for 1 week, product is best stored at or below -20 degree C. Addition of a carrier protein (such as 0.1% HSA or BSA) is recommended for long-term storage.
products description :
Troponin I (TnI) troponin T (TnT) and troponin C (TnC) form the troponin complex of thin filaments of striated muscle. TnI acts as the inhibitory subunit by blocking actin-myosin interactions and thereby mediating striated muscle relaxation. The TnI subfamily consists of 3 genes: TnIskeletal-fast-twitch, TnI-skeletal-slowtwitch, and TnI-cardiac. The TNNI3 gene encodes the TnI-cardiac protein and is exclusively expressed in cardiac muscle tissue. Mutations in the TNNI3 gene cause familial hypertrophic cardiomyopathy type 7 and familial restrictive cardiomyopathy. Recombinant Human TnI produced in E. coli is a single, non-glycosylated polypeptide chain containing 165 amino acids with a molecular weight of 24 kDa.
ncbi acc num :
NP_000354.4
ncbi gb acc num :
NM_000363.4
ncbi mol weight :
24,008 Da
ncbi pathways :
Cardiac Muscle Contraction Pathway 93344!!Cardiac Muscle Contraction Pathway 93992!!Dilated Cardiomyopathy Pathway 121494!!Dilated Cardiomyopathy Pathway 121285!!Hypertrophic Cardiomyopathy (HCM) Pathway 114229!!Hypertrophic Cardiomyopathy (HCM) Pathway 106591!!Muscle Contraction Pathway 106261!!Striated Muscle Contraction Pathway 106262!!Striated Muscle Contraction Pathway 198903
ncbi summary :
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. This gene encodes the TnI-cardiac protein and is exclusively expressed in cardiac muscle tissues. Mutations in this gene cause familial hypertrophic cardiomyopathy type 7 (CMH7) and familial restrictive cardiomyopathy (RCM). [provided by RefSeq]
uniprot summary :
Function: Troponin I is the inhibitory subunit of troponin, the thin filament regulatory complex which confers calcium-sensitivity to striated muscle actomyosin ATPase activity. Subunit structure: Binds to actin and tropomyosin. Interacts with TRIM63. Ref.7. Involvement in disease: Defects in TNNI3 are the cause of cardiomyopathy familial hypertrophic type 7 (CMH7) [. MIM:613690]. Familial hypertrophic cardiomyopathy is a hereditary heart disorder characterized by ventricular hypertrophy, which is usually asymmetric and often involves the interventricular septum. The symptoms include dyspnea, syncope, collapse, palpitations, and chest pain. They can be readily provoked by exercise. The disorder has inter- and intrafamilial variability ranging from benign to malignant forms with high risk of cardiac failure and sudden cardiac death. Ref.10 Ref.11 Ref.13 Ref.15 Ref.17Defects in TNNI3 are the cause of cardiomyopathy familial restrictive type 1 (RCM1) [. MIM:115210]. RCM1 is an heart muscle disorder characterized by impaired filling of the ventricles with reduced diastolic volume, in the presence of normal or near normal wall thickness and systolic function.Defects in TNNI3 are the cause of cardiomyopathy dilated type 2A (CMD2A) [. MIM:611880]. Dilated cardiomyopathy is a disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death. Ref.16Defects in TNNI3 are the cause of cardiomyopathy dilated type 1FF (CMD1FF) [. MIM:613286]. Dilated cardiomyopathy is a disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death. Sequence similarities: Belongs to the troponin I family.