Anti-Cardiac Troponin T/TNNT2 Antibody Picoband® Fluoro594 Conjugated

Cardiac muscle troponin T (cTnT), is a protein which in humans is encoded by the TNNT2 gene. It is mapped to 1q32.1. The protein encoded by this gene is the tropomyosin-binding subunit of the troponin complex, which is located on the thin filament of striated muscles and regulates muscle contraction in response to alterations in intracellular calcium ion concentration. Mutations in this gene have been associated with familial hypertrophic cardiomyopathy as well as with dilated cardiomyopathy. Transcripts for this gene undergo alternative splicing that results in many tissue-specific isoforms, however, the full-length nature of some of these variants has not yet been determined.

Heart. The fetal heart shows a greater expression in the atrium than in the ventricle, while the adult heart shows a greater expression in the ventricle than in the atrium. Isoform 6 predominates in normal adult heart. Isoforms 1, 7 and 8 are expressed in fetal heart. Isoform 7 is also expressed in failing adult heart.

Troponin T is the tropomyosin-binding subunit of troponin, the thin filament regulatory complex which confers calcium-sensitivity to striated muscle actomyosin ATPase activity.

1. Aviles, R. J., Askari, A. T., Lindahl, B., Wallentin, L., Jia, G., Ohman, E. M., Mahaffey, K. W., Newby, L. K., Califf, R. M., Simoons, M. L., Topol, E. J., Lauer, M. S. Troponin T levels in patients with acute coronary syndromes, with or without renal dysfunction. New Eng. J. Med. 346: 2047-2052, 2002. 2. Charlet-B, N., Logan, P., Singh, G., Cooper, T. A. Dynamic antagonism between ETR-3 and PTB regulates cell type-specific alternative splicing. Molec. Cell 9: 649-658, 2002. 3. Du, C.-K., Morimoto, S., Nishii, K., Minakami, R., Ohta, M., Tadano, N., Lu, Q.-W., Wang, Y.-Y., Zhan, D.-Y., Mochizuki, M., Kita, S., Miwa, Y., Takahashi-Yanaga, F., Iwamoto, T., Ohtsuki, I., Sasaguri, T. Knock-in mouse model of dilated cardiomyopathy caused by troponin mutation.Circ. Res. 101: 185-194, 2007.