Troponin I, Cardiac, Human (cTnI, CMH7, Familial Hypertrophic Cardiomyopathy 7, MGC116817, Troponin-I, Troponin I Cardiac Muscle, TNNC 1, TNNC1, Troponin I Type 3 Cardiac, TNNI3)

Troponin, working in conjunction with tropomyosin, functions as a molecular switch, regulating muscle contraction in response to changes in the intracellular Ca2+ concentration. Troponin consists of three subunits, the Ca2+-binding subunit troponin C (TnC), the tropomyosin-binding subunit troponin T (TnT), and the inhibitory subunit troponin I (TnI). Troponin I binds to actin in thin myofilaments to hold the actin-tropomyosin complex in place, because of which myosin cannot bind to actin in relaxed muscle. When Calcium binds to the Troponin C it causes certain confomational changes which leads to dislocation of troponin I. The letter

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SPECIFICATIONS

Catalog Number

T8665-14H

Size

200ug

Applications

ELISA, IP, WB

Hosts

Mouse

Reactivities

Hum, Mouse, Rat, Bov, Can, Fel, Goat, Prc, Rabbit

Form

Supplied as a liquid in PBS, pH 7.2.

P Type

Mab

Purity

As reported

Isotype

IgG2a

References

Sarko J & Pollack CV Cardiac troponins. J Emerg Med 23:57-65 (2002). Gomes AV et al. The role of troponins in muscle contraction. IUBMB Life 54:323-33 (2002). Hamm CW Acute coronary syndromes. The diagnostic role of troponins. Thromb Res 103 Suppl 1:S63-9 (2001). Labugger R et al. Extensive troponin I and T modification detected in serum from patients with acute myocardial infarction. Circulation 102:1221-6 (2000). Wu AH et al. Characterization of cardiac troponin subunit release into serum after acute myocardial infarction and comparison of assays for troponin T and I. American Association for Clinical Chemistry Subcommittee on cTnI Standardization. Clin Chem 44:1198-208 (1998). Katrukha AG et al. Troponin I is released in bloodstream of patients with acute myocardial infarction not in free form but as complex. Clin Chem 43:1379-85 (1997).

Additional Info

reacts with free cardiac troponin I (cTnI) and cTnI forming complexes with other troponin components (in the presence of 5 mM EDTA). Not affected by heparin, phosphorylation, oxidation and troponin complex formation. Does not crossreact with skeletal muscle troponin I. Species Crossreactivity: Crossreacts with Mouse, Rat, bovine, Cat, canine, Goat, porcine, Rabbit and Human.