Results 261 to 270 of about 5,264,822 (290)

Three-dimensional image reconstruction of actin-tropomyosin complex and actin-tropomyosin-troponin T-troponin I complex

Journal of Molecular Biology, 1975
Abstract The structure of the actin-tropomyosin complex, which represents on active form of the thin filaments of skeletal muscle and the actin-tropomyosin-troponin T-troponin I complex, which represents an inhibited form, have been studied by three-dimensional reconstruction from electron micrographs.
T, Wakabayashi, H E, Huxley, L A, Amos, A, Klug   +3 more
openaire   +2 more sources

[Distribution of tryptophan groups in molecules of troponin T, troponin I-troponin T complex, and alpha-actinin].

Biofizika, 2001
The method of fluorescence quenching was used to experimentally determine the distribution of tryptophan residues in molecules of troponin T, troponin T-troponin I complexes, and alpha-actinin. Iodide and cesium ions, and acrylamide were used as quenchers.
A G, Gvritishvili, S O, Simonishvili, N I, Butkhuzi, K Sh, Kuridze, M Sh, Simonidze, E V, But, M M, Zaalishvili   +6 more
openaire   +2 more sources

Human cardiac troponin complex. Structure and functions

Biochemistry (Moscow), 2013
Troponin complex is a component of skeletal and cardiac muscle thin filaments. It consists of three subunits - troponin I, T, and C, and it plays a crucial role in muscle activity, connecting changes in intracellular Ca2+ concentration with generation of contraction.
openaire   +2 more sources

Proximity Relationships between Residue 6 of Troponin I and Residues in Troponin C:  Further Evidence for Extended Conformation of Troponin C in the Troponin Complex

Biochemistry, 2000
Skeletal muscle troponin C (TnC) adopts an extended conformation when crystallized alone and a compact one when crystallized with an N-terminal troponin I (TnI) peptide, TnI(1-47) [Vassylyev et al. (1998) Proc. Natl. Acad. Sci. U.S.A. 95, 4847-4852]. The N-terminal region of TnI (residues 1-40) was suggested to play a functional role of facilitating ...
Y, Luo, J, Leszyk, B, Li, J, Gergely, T, Tao   +4 more
openaire   +2 more sources

Structure of the insect troponin complex.

Journal of molecular biology, 1999
Isolated troponin-tropomyosin complex from Lethocerus indicus asynchronous flight muscle forms paracrystals on a positively charged lipid monolayer. Single particle analysis was carried out on individual complexes selected from electron micrographs of negatively stained paracrystals.
T, Wendt, K, Leonard
openaire   +1 more source

Extraction and Replacement of the Tropomyosin–Troponin Complex in Isolated Myofibrils

2010
Tropomyosin (Tm) is an essential component in the regulation of striated muscle contraction. Questions about Tm functional role have been difficult to study because sarcomere Tm content is not as easily manipulated as Troponin (Tn). Here we describe the method we recently developed to replace Tm-Tn of skeletal and cardiac myofibrils from animals and ...
SCELLINI, BEATRICE, PIRODDI, NICOLETTA, POGGESI, CORRADO, TESI, CHIARA   +3 more
openaire   +3 more sources

Physicochemical studies on the complexes troponin C with troponin T, and reconstituted troponin, and their interaction with calcium ions

Biochemistry, 1974
R S, Mani, W D, McCubbin, C M, Kay
openaire   +2 more sources

Physarum Tropomyosin-Troponin Complex

The Journal of Biochemistry, 1975
Toyoki KATO, Yuji TONOMURA
openaire   +1 more source

Crosslinking of troponin complex with 1,3-difluoro-4,6-dinitrobenzene

BBA - Proteins and Proteomics, 1984
N B Gusev, P Friedrich
exaly  

Deciphering a macro-troponin I complex; a case report

Clinical Chemistry and Laboratory Medicine, 2017
Richard Troughton, Peter George, Stephen O Brennan   +2 more
exaly