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Keywords: protein synthesisClose
J Exp Biol (2021) 224 (10): jeb242496.
Published: 18 May 2021
...Satoru Ato; Riki Ogasawara ABSTRACT Skeletal muscle has numerous nuclei within a cell. The nucleus is considered as the central organelle for muscle protein synthesis (MPS). However, it is unclear whether myonuclear number is associated with MPS capacity within the individual muscle fibres...
J Exp Biol (2021) 224 (8): jeb242157.
Published: 16 April 2021
... to the event. This memory was evident at least 24 h after training and was protein synthesis dependent. Importantly, the target area of the arena proved to be a non-neutral environment, given that animals initially avoided the target quadrant. In the present work, we introduce for the first time an associative...
J Exp Biol (2021) 224 (2): jeb233379.
Published: 19 January 2021
... understood. In this study of developmental stages of the Pacific oyster, Crassostrea gigas , thermal sensitivities were measured for growth, survivorship, protein synthesis, respiration and transport of amino acids and ions. At warmer temperatures, larvae grew faster but suffered increased mortality...
Includes: Supplementary data
J Exp Biol (2018) 221 (10): jeb171967.
Published: 20 May 2018
... shift in depositional efficiency resulting in increased protein accretion during later larval growth. Variation in protein depositional efficiency among families did not explain the range in larval growth rates. Instead, changes in protein synthesis rates predicted 72% of growth variation. High rates...
Includes: Supplementary data
A. A. Cassidy, W. R. Driedzic, D. Campos, W. Heinrichs-Caldas, V. M. F. Almeida-Val, A. L. Val, S. G. Lamarre
J Exp Biol (2018) 221 (2): jeb167601.
Published: 25 January 2018
.... A flooding dose technique using a stable isotope allowed us to observe an overall decrease in protein synthesis during hypoxia in liver, muscle, gill and heart. We estimate that this decrease in rates of protein synthesis accounts for a 20 to 36% decrease in metabolic rate, which would enable oscars...
J Exp Biol (2016) 219 (17): 2582–2595.
Published: 1 September 2016
... atrophy may reveal novel regulatory factors and lead to new therapeutics. Aestivation Apoptosis Hibernation Immobilisation Protein synthesis Sclerostin The vertebrate musculoskeletal system executes an array of important functions, including facilitating movement and breathing...
J Exp Biol (2016) 219 (2): 214–225.
Published: 1 January 2016
... regulating protein synthesis, breakdown and folding is required to ensure protein equilibrium is maintained. These pathways include both proteasomal and lysosomal degradation systems (ubiquitin-mediated and autophagy, respectively) and the protein translational and folding machinery. The activities...
J Exp Biol (2011) 214 (11): 1821–1828.
Published: 1 June 2011
... ). The theoretical minimum cost of protein synthesis, derived from stoichiometry is 8.3 mmol O 2 g –1 protein synthesised [see reviews by Houlihan et al. ( Houlihan et al., 1995a ; Houlihan et al.,1995b ) or Fraser and Rodgers ( Fraser and Rodgers, 2007 ) for assumptions]. Several studies have used protein...
J Exp Biol (2010) 213 (1): 172–183.
Published: 1 January 2010
... factor-2 ( Gl-EF-2 ), and calpain T ( Gl-CalpT ) in response to molt induction, but levels of the four transcripts were not correlated with ecdysteroid. The downregulation of Gl-Mstn expression in premolt claw muscle coincided with 11- and 13-fold increases in protein synthesis in the myofibrillar...
J Exp Biol (2009) 212 (22): 3656–3663.
Published: 15 November 2009
... in aestivating frogs, but overall uptake capacity was lower than in active frogs. Total SI oxygen consumption rate (V O 2 ) was also lower in aestivating frogs, despite no difference in mass-specific V̇ O 2 . The proportion of intestinal V̇ O 2 associated with Na + /K + -ATPase activity and protein synthesis...
J Exp Biol (2009) 212 (10): 1535–1543.
Published: 15 May 2009
... 2009 2009 sympathetic innervation transcription factors protein synthesis exocrine gland snake Bothrops jararaca Bothrops jararaca (Serpentes, Viperidae) is a Brazilian solenoglyphous venomous snake. Its venom gland is an oral exocrine gland that is related to salivary...
J Exp Biol (2009) 212 (9): 1294–1301.
Published: 1 May 2009
...Simon G. Lamarre; Nathalie R. Le François; William R. Driedzic; Pierre U. Blier SUMMARY The effects of temperature on protein metabolism have been studied mostly with respect to protein synthesis. Temperature generally has a parabolic effect on protein synthesis with a maximum rate being observed...
J Exp Biol (2008) 211 (19): 3111–3122.
Published: 1 October 2008
...), and decreases in protein synthesis rates measured in liver cell-free extracts. No activation of AMPK was observed in muscle, brain, heart or gill during the 12 h hypoxia exposure suggesting a tissue-specific regulation of AMPK possibly related to a lack of change in cellular [AMP free ]/[ATP] as observed...
J Exp Biol (2008) 211 (4): 577–586.
Published: 15 February 2008
... and expression of stress proteins (heat shock proteins HSP60, HSP70 and HSP90) and metallothioneins in isolated gill and hepatopancreas cells of the eastern oyster, Crassostrea virginica . Our study showed that exposure to cadmium resulted in a dose-dependent increase in the rate of protein synthesis in oyster...
J Exp Biol (2007) 210 (15): 2691–2699.
Published: 1 August 2007
... rates are largely determined by the protein synthesis retention efficiency (PSRE), a measure of the efficiency with which proteins are synthesised and retained as protein growth. The effect of water temperatures on the PSRE of polar organisms has not previously been investigated, and it is possible...
J Exp Biol (2007) 210 (11): 1935–1943.
Published: 1 June 2007
...J. M. Lewis; I. Costa; A. L. Val; V. M. F. Almeida-Val; A. K. Gamperl; W. R. Driedzic SUMMARY Oxygen consumption, as an indicator of routine metabolic rate (RoMR), and tissue-specific changes in protein synthesis, as measured by 3 H-labelled phenylalanine incorporation rates, were determined...
J Exp Biol (2006) 209 (7): 1274–1284.
Published: 1 April 2006
..., Crassostrea virginica (eastern oysters), using oxygen demand for ATP turnover, protein synthesis, mitochondrial proton leak and non-mitochondrial respiration in isolated gill and hepatopancreas cells as demand-side endpoints and mitochondrial oxidation capacity, abundance and fractional volume as supply-side...
J Exp Biol (2006) 209 (1): 158–170.
Published: 1 January 2006
... differential costs of protein synthesis in animals differing in size, rates of protein synthesis, and physiological feeding states. For embryos, the rate of protein synthesis was 0.22±0.014 ng protein embryo -1 h -1 (mean ±s.e.m.) and decreased in unfed larvae to an average rate of 0.05±0.001 ng protein larva...
J Exp Biol (2003) 206 (22): 3895–3903.
Published: 15 November 2003
... brachycephalum and Lepidonotothen kempi . Correlated changes in energy and protein metabolism were investigated by determining the rates of oxygen consumption at various levels of P CO 2 , of intra- and extracellular pH, and after inhibition of protein synthesis by cycloheximide. A decrease in extracellular pH...
J Exp Biol (2003) 206 (14): 2363–2371.
Published: 15 July 2003
...Julian L. Pakay; Andrew A. Hobbs; Scot R. Kimball; Michael Guppy SUMMARY We have investigated the role of eukaryotic initiation factor 2α(eIF2α) in two estivating organisms previously shown to downregulate protein synthesis during metabolic depression, the land snail Helix aspersa Müller...