Results 21 to 30 of about 21,247 (241)
Frontiers in Physiology, 2021 We sought to determine if manipulating resistance training (RT) variables differentially altered the expression of select sarcoplasmic and myofibril proteins as well as myofibrillar spacing in myofibers.
Carlton D. Fox +14 more
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Force per cross-sectional area from molecules to muscles: a general property of biological motors [PDF]
Royal Society Open Science, 2016 We propose to formally extend the notion of specific tension, i.e. force per cross-sectional area—classically used for muscles, to quantify forces in molecular motors exerting various biological functions.
Jean-Pierre Rospars +1 more
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Drosophila Nesprin-1 Isoforms Differentially Contribute to Muscle Function
Cells, 2021 Nesprin-1 is a large scaffold protein connecting nuclei to the actin cytoskeleton via its KASH and Calponin Homology domains, respectively. Nesprin-1 disconnection from nuclei results in altered muscle function and myonuclei mispositioning.
Alexandre Rey +3 more
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Current Issues in Molecular Biology, 2023 Mitochondria in mammalian cardiomyocytes display considerable structural heterogeneity, the significance of which is not currently understood. We use electron microscopic tomography to analyze a dataset of 68 mitochondrial subvolumes to look for ...
Raquel A. Adams +6 more
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Myofibrils of skeletal muscle: the activity coefficient of orthophosphate.
, 1997 In the myofibrils of skeletal muscle, at 22°C, pH 7.1 and at the physiological protein osmotic pressure of 1.8 x 105 dynes/cm2, orthophosphate behaves quite ideally, the activity coefficient being 0.85.
MAGRI E. +4 more
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The role of sarcomere length non-uniformities in residual force enhancement of skeletal muscle myofibrils [PDF]
Royal Society Open Science, 2016 The sarcomere length non-uniformity theory (SLNT) is a widely accepted explanation for residual force enhancement (RFE). RFE is the increase in steady-state isometric force following active muscle stretching. The SLNT predicts that active stretching of a
Kaleena Johnston +2 more
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Lbx2regulates formation of myofibrils [PDF]
BMC Developmental Biology, 2009 Skeletal muscle differentiation requires assembly of contractile proteins into organized myofibrils. The Drosophila ladybird homeobox gene (lad) functions in founder cells of the segmental border muscle to promote myoblast fusion and muscle shaping. Tetrapods have two homologous genes (Lbx).
Ochi, Haruki, Westerfield, Monte
openaire +2 more sources
The conserved transmembrane proteoglycan Perdido/Kon-tiki is essential for myofibrillogenesis and sarcomeric structure in Drosophila [PDF]
, 2014 M.B. was funded by a Wellcome Trust Senior Investigator Award to P. Lawrence (WT096645MA).Muscle differentiation requires the assembly of high-order structures called myofibrils, composed of sarcomeres.
Estrada, B +3 more
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Mechanical characterization of skeletal muscle myofibrils [PDF]
, 1996 A new instrument, based on a technique described previously, is presented for studying mechanics of micron-scale preparations of two to three myofibrils or single myofibrils from muscle. Forces in the nanonewton to micronewton range are measurable with 0.
Goldman, Y.E., Friedman, A.L.
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A Supramolecular Polymerization Approach to the Growth of the Myofibril
Frontiers in Chemistry, 2019 Extended linear structures self-assemble by the multi-stage-open-association mechanism of supramolecular polymerization (MSOA). Application of the model requires the identification of a repeating unit, the main-chain supramolecular bond, and the binding ...
Alberto Ciferri, Alvin L. Crumbliss
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