منابع مشابه
Cardiac troponin I gene knockout: a mouse model of myocardial troponin I deficiency.
Troponin I is a subunit of the thin filament-associated troponin-tropomyosin complex involved in calcium regulation of skeletal and cardiac muscle contraction. We deleted the cardiac isoform of troponin I by using gene targeting in murine embryonic stem cells to determine the developmental and physiological effects of the absence of this regulatory protein. Mice lacking cardiac troponin I were ...
متن کاملStructure and regulation of the mouse cardiac troponin I gene.
The gene coding for mouse cardiac troponin I (TnI) has been cloned and sequenced. The cardiac TnI gene contains 8 exons and has an exon-intron organization similar to the quail fast skeletal TnI gene except for the region of exons 1-3, which is highly divergent. Comparative analysis suggests that cardiac TnI exon 1 corresponds to fast TnI exons 1 and 2 and that cardiac exon 3, which codes for m...
متن کاملChimeric cardiac troponin I antibodies
most assay manufacturers take additional measures during the assay development. The most frequent procedure involves suppressing the non-specific binding with blocking reagents, which vary from normal mouse IgG to more refined formulations. Whilst in most cases these measures are adequate, they do result in additional costs in terms of both material and labor. The effect of HAMA can also be sup...
متن کاملDegradation of cardiac troponin I in serum complicates comparisons of cardiac troponin I assays.
BACKGROUND Up to a 20-fold variation in serum cardiac troponin I (cTnI) concentration may be observed for a given patient sample with different analytical methods. Because more limited variation is seen for control materials and for purified cTnI, we explored the possibility that cTnI was present in altered forms in serum. METHODS We used four recombinantly engineered cTnI fragments to study ...
متن کاملHydrodynamic properties of bovine cardiac troponin-I and troponin-T.
Bovine cardiac troponin-I (TN-I) and troponin-T (TN-T) have been examined in solution using ultracentrifugation, gel filtration, and viscosity. A new method of purifying TN-T, employing hydroxylapatite chromatography in 6 M urea, is reported. Cardiac TN-T (Mr = 36,000) undergoes a reversible, concentration-dependent association in nondenaturing buffers, probably to a tetramer. The Stokes radius...
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ژورنال
عنوان ژورنال: Circulation Research
سال: 1999
ISSN: 0009-7330,1524-4571
DOI: 10.1161/01.res.84.1.1