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Keywords: ATPase
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Journal Articles
J Exp Biol (2019) 222 (10): jeb199448.
Published: 29 May 2019
...Jinae N. Roa; Martin Tresguerres ABSTRACT Na + /K + -ATPase (NKA)- and vacuolar H + -ATPase (VHA)-rich cells in shark gills secrete excess acid and base, respectively, to seawater to maintain blood acid–base homeostasis. Both cell types are rich in mitochondria, indicating high ATP demand; however...
Journal Articles
Journal Articles
J Exp Biol (2001) 204 (15): 2675–2682.
Published: 1 August 2001
... the temperature interactions of a major cytosolic molecular chaperone, Hsc70, from the eurythermal marine goby Gillichthys mirabilis . Using in vitro assays, we measured the intrinsic activity, unfolded-protein-stimulated activity, temperature sensitivity and heat stability of the ATPase activity of native Hsc70...
Journal Articles
J Exp Biol (2001) 204 (6): 1063–1071.
Published: 15 March 2001
..., ATP, which is the substrate of dynein ATPase and the actual energy source for ciliary beating, does not need to diffuse into the cilia. Hydrolyzed ATP must be immediately recycled by ciliary arginine kinase to be rephosphorylated by phosphoarginine. Thus, the intraciliary concentration of ATP...
Journal Articles
J Exp Biol (2000) 203 (1): 107–116.
Published: 1 January 2000
... and exocytosis. Their lumina are acidic, with pH ranging from 4.5 to 6.5. This article describes recent studies on these animal cell organelles focusing on (1) the primary proton pump (vacuolar-type H + -ATPase) and (2) the functions of the organelle luminal acidity. We also discuss similarities and differences...
Journal Articles
J Exp Biol (1996) 199 (11): 2459–2465.
Published: 1 November 1996
... + /K + pump activity. * Author for correspondence (e-mail: jsanchez@porthos.bio.ub.es ). 2 8 1996 ©The Company of Biologists Limited 1996 ASC system ATPase Na + /K + pump glucagon adaptive regulation fasting hepatocytes trout Salmo trutta System...
Journal Articles
Journal Articles
J Exp Biol (1992) 172 (1): 113–122.
Published: 1 November 1992
...Lincoln Taiz ABSTRACT Plant cells are unique in containing large acidic vacuoles which occupy most of the cell volume. The vacuolar H + -ATPase (V-ATPase) is the enzyme responsible for acidifying the central vacuole, although it is also present on Golgi and coated vesicles. Many secondary transport...
Journal Articles
J Exp Biol (1992) 172 (1): 93–103.
Published: 1 November 1992
...Patricia M. Kane ABSTRACT Achieving an understanding of the biosynthesis, assembly and intracellular targeting of the vacuolar H + -ATPase is critical for understanding the distribution of acidic compartments and the regulation of organelle acidification. The assembly of the yeast vacuolar H...
Journal Articles
J Exp Biol (1992) 172 (1): 137–147.
Published: 1 November 1992
...J. Peter Gogarten; Thomas Starke; Henrik Kibak; Jenny Fishmann; Lincoln Taiz ABSTRACT The structure of V- and F-ATPases/ATP synthases is remarkably conserved throughout evolution. Sequence analyses show that the V- and F-ATPases evolved from the same enzyme that was already present in the last...
Journal Articles
Journal Articles
J Exp Biol (1991) 161 (1): 315–331.
Published: 1 November 1991
... the strong net uptakes of Na + and Cl − to be similar at approximately 4.5 μ molh −1 g −1 from full-strength urine, diluting the fluid to a threshold below 20 mmol l −1 . Na + /K + -ATPase and Ca 2+ -ATPase activities of gill homogenates indicated V max values (65–127 and 11 nmol min −1 mg −1 protein...
Journal Articles
J Exp Biol (1990) 149 (1): 499–503.
Published: 1 March 1990
...TA McKean 19 10 1989 © 1990 by Company of Biologists 1990 muskrat ATPase myosin heart Muskrats ( Ondatra zibethicus) are among the most common freshwater diving mammals in North America. They have a well-developed diving response that occurs upon either forced...
Journal Articles
J Exp Biol (1983) 106 (1): 143–161.
Published: 1 September 1983
... been provided for primary chloride transport despite numerous reports of cellular, anion-stimulated ATPases and of chloride transport that cannot be accounted for by the three well-accepted chloride transport processes. Anion-stimulated ATPases are of mitochondrial origin and are a ubiquitous property...