Results 51 to 60 of about 59,695 (281)

Molecular mechanisms of the regulation of ATPase cycle in striated muscle [PDF]

, 2007
New data on the molecular mechanism of the regulation of ATPase cycle by troponin-tropomyosin system have been obtained in reconstructed muscle fibers by using the polarized fluorescence technique, which allowed us following the azimuthal movements of ...
Charles S. Redwood, Olga E. Karpicheva, Yuri S. Borovikov   +2 more
core   +1 more source

LncRNA Foxo6os as a Novel “ Scaffold” Mediates MYBPC3 in Combating Pathological Cardiac Hypertrophy and Heart Failure

Advanced Science, EarlyView.
Schematic overview showing that forkhead box O6, opposite strand (Foxo6os) acts as a “scaffold”, directly binding myosin‐binding protein‐C (MYBPC3) and recruiting protein kinase C (PKC‐α) to mediate site‐specific phosphorylation of MYBPC3. This post‐translational modification supports cardiac contraction by regulating L‐type Ca2+ channels, especially ...
Jie Sheng, Qin Lin, Yizhuo Sun, Yilei Meng, Sangyu Hu, Huaming Cao, Fang Lin, Yuping Zhu, Luying Peng, Li Li   +9 more
wiley   +1 more source

Steric blocking upside down: a different way of thinking about the competition between myosin and tropomyosin

Frontiers in Physics
At low free Ca2+, the actin binding proteins tropomyosin, troponin I, troponin T and troponin C inhibit contraction in striated muscles. Ca2+ activation alters the position of tropomyosin on actin to uncover binding sites for high affinity forms of ...
Joseph M. Chalovich
doaj   +1 more source

Determination of Tropomyosin in Shrimp and Crab by Liquid Chromatography–Tandem Mass Spectrometry Based on Immunoaffinity Purification

Frontiers in Nutrition, 2022
A UPLC-MS/MS method was developed for the detection of tropomyosin (TM) in shrimp and crab. After simple extraction, the samples were purified by immunoaffinity column and then digested by trypsin.
Sufang Fan, Junmei Ma, Junmei Ma, Chunsheng Li, Yanbo Wang, Wen Zeng, Qiang Li, Jinru Zhou, Liming Wang, Yi Wang, Yan Zhang, Yan Zhang   +11 more
doaj   +1 more source

Troponin T3 regulates nuclear localization of the calcium channel Cavβ1a subunit in skeletal muscle [PDF]

, 2015
The voltage-gated calcium channel (Cav) β1a subunit (Cavβ1a) plays an important role in excitation-contraction coupling (ECC), a process in the myoplasm that leads to muscle-force generation. Recently, we discovered that the Cavβ1a subunit travels to the
Delbono, Osvaldo, Hereñú, Claudia Beatriz, Jiang, Yang, Messi, Maria Laura, Pereyra, Andrea Soledad, Taylor, Jackson, Wang, Zhong Min, Zhang, Tan   +7 more
core   +2 more sources

Deciphering the skeletal interoceptive circuitry to control bone homeostasis

BMEMat, EarlyView.
This review introduces the skeletal interoceptive circuitry, covering the ascending signals from bone tissues to the brain (sensors), the central neural circuits that integrate this information and dispatch commands (CPU), and the descending pathways that regulate bone homeostasis (effectors).
Yefeng Wu, Jiusi Guo, Zhen Chen, Fengwei Zhang, Billy Kwok Chong Chow, Zhuofan Chen, Kelvin Wai‐Kwok Yeung, Wei Qiao   +7 more
wiley   +1 more source

Determination of Shrimp Allergens in Meat Products by Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry

Shipin gongye ke-ji, 2023
Objective: To establish a method for the determination of shrimp allergens in meat products by ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS).
Tongtong LIU, Ruiqiang LIANG, Weina HAN, Jiaoyi LUO, Jin CAO, Shanshan SUN, Qi CHEN   +6 more
doaj   +1 more source

The Conformational Stabilities of Tropomyosins [PDF]

Australian Journal of Biological Sciences, 1976
The stability to denaturation by heat and guanidine hydrochloride of seven vertebrate (including skeletal, cardiac and smooth muscle) tropomyosins and three invertebrate tropomyosins was examined. The transition profiles were discontinuous and in many cases distinct plateaux were observed which indicated the presence of unique partially unfolded states
openaire   +3 more sources

Equilibrium self‐association of tropomyosin [PDF]

FEBS Letters, 2012
It has recently been reported that tropomyosin exists exclusively as a dimer in physiological salt conditions. It is shown in the present work using analytical ultracentrifugation that, on the contrary, tropomyosin is in equilibrium between monomer, dimer and tetramer with a weak tendency to dimerize and tetramerize. Such a finding has consequences for
Eunhee Lee, Philip Graceffa, Walter F. Stafford   +2 more
openaire   +3 more sources

A truncation mutant of adenomatous polyposis coli impairs apical cell extrusion through elevated epithelial tissue tension

Cytoskeleton, EarlyView.
Abstract Tissue tension encompasses the mechanical forces exerted on solid tissues within animal bodies, originating from various sources such as cellular contractility, interactions with neighboring cells and the extracellular matrix. Emerging evidence indicates that an imbalance in such forces can influence structural organization, homeostasis, and ...
Wan J. Gan, Rabina Giri, Jakob Begun, Helen E. Abud, Edna C. Hardeman, Peter W. Gunning, Alpha S. Yap, Ivar Noordstra   +7 more
wiley   +1 more source