..., and flight muscle hypertrophy. In mammalian muscle, SLN is a small regulatory protein which binds to sarco/endoplasmic reticulum Ca 2+ -ATPase (SERCA) and uncouples Ca 2+ transport from ATP hydrolysis, increasing energy consumption, heat production, and cytosolic Ca 2+ transients that signal...

...) in muscle. However, UV-B did not affect the activity of sarco-endoplasmic reticulum ATPase (SERCA), an enzyme associated with muscle calcium cycling and muscle relaxation. UV-B did not affect ADP phosphorylation (state 3) rates of mitochondrial respiration, and it did not alter the amount of ATP produced...

... and Keith Stamplecoskie for their assistance in procuring the experimental fish and in forming hypotheses; Eric Bombardier and Paul Craig for assistance with the Ca 2+ -ATPase/SERCA assay; Antoine Morin for assistance with statistics; two anonymous reviewers for detailed and constructive comments...

... in zebrafish over a 3 week acclimation period to either 18 or 28°C. We found that cold-acclimated fish had higher maximum heart rates and sarco-endoplasmic reticulum Ca 2+ -ATPase (SERCA) activity than warm-acclimated fish. Hypothyroid treatment significantly decreased these responses in the cold-acclimated...

..., as well as tail beat frequency and SERCA activity in cold-acclimated fish. However, myofibrillar ATPase activity increased in cold-acclimated hypothyroid fish. Hypothyroid treatment also decreased mRNA concentrations of myosin heavy chain fast isoforms and SERCA 1 isoform in cold-acclimated fish. SERCA 1...

... frequency and U crit . However, sprint performance also decreased with DHPR inhibition, which may indicate a role in muscle contraction of the Ca 2+ released by DHPR into the myocyte. Inhibiting sarco(endo)plasmic reticulum Ca 2+ -ATPase (SERCA) activity with thapsigargin decreased fatigue resistance...

... for correspondence ( [email protected] ) 20 11 2011 © 2012. 2012 sustained locomotion sprint performance ryanodine receptor SERCA dihydropyridine receptor gene expression electroporation Locomotor performance is closely linked to fitness because it facilitates behaviour...

... on epithelia involved in mineralisation processes suggest a role of the smooth endoplasmic reticulum Ca 2+ -ATPase (SERCA) in transcellular calcium transport. We present the first molecular characterisation of a SERCA within a crustacean mineralising epithelium. We cloned the SERCA from a cDNA library...

... temperature. Heater cells are derived from extraocular muscle fibers and express a modified muscle phenotype with an extensive transverse-tubule (T-tubule) network and sarcoplasmic reticulum (SR)enriched in Ca 2+ -ATPase (SERCA) pumps and ryanodine receptors(RyRs). Heater cells have a high mitochondria...

... loading medium, the increase in optical signal was blocked immediately( Fig. 3B ); it resumed after exposure to standard loading medium containing 5 mmol l -1 ATP( N =7). Exposure to 1 μmol l -1 CPA, a specific blocker of the SERCA, caused an immediate inhibition of calcium oxalate formation( Fig. 3C...