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Endoplasmic reticulum of animal cells and its organization into structural and functional domains.
Stimulus-induced Phosphorylation of Vacuolar H+-ATPase by Protein Kinase A*
- M. Voss, Olga Vitavska, B. Walz, H. Wieczorek, O. Baumann
- Biology, ChemistryJournal of Biological Chemistry
- 16 November 2007
Salivary glands of the blowfly Calliphora vicina are used to suggest that subunit C binds to and serves as a substrate for protein kinase A and that this phosphorylation may be a regulatory switch for the formation of the active V1V0 holoenzyme.
Molecular characterization and localization of the first tyramine receptor of the American cockroach (Periplaneta americana)
Molecular and Pharmacological Characterization of Serotonin 5-HT2α and 5-HT7 Receptors in the Salivary Glands of the Blowfly Calliphora vicina
This study represents the first comprehensive molecular and pharmacological characterization of two 5-HT receptors in the blowfly and permits the analysis of the physiological role of these receptors, even when co-expressed in cells, and of the modes of interaction between the Ca2+- and cAMP-signalling cascades.
Elemental distribution in Rana pipiens retinal rods: quantitative electron probe analysis.
The composition of dark‐adapted and illuminated retinal rod outer and inner segments and mitochondria was determined with electron probe X‐ray micro‐analysis of cryosections and Mitochondrial Na and Mg paralleled the changes in the cytoplasmic concentrations.
cAMP regulates plasma membrane vacuolar-type H+-ATPase assembly and activity in blowfly salivary glands.
- P. Dames, B. Zimmermann, O. Baumann
- Biology, ChemistryProceedings of the National Academy of Sciences…
- 7 March 2006
These findings suggest that the cAMP pathway mediates the reversible assembly and activation of V-ATPase molecules at the apical membrane upon hormonal stimulus.
Distribution and serotonin-induced activation of vacuolar-type H+-ATPase in the salivary glands of the blowfly Calliphora vicina
Biochemical assays provided evidence that the serotonin-induced activation of V-ATPase activity was accompanied by a recruitment of peripheral V1 subunits from the cytosol to the plasma membrane, indicative of the assembly of V0V1 holoenzymes, which might constitute a regulatory mechanism for the control of pump activity.
Dopamine-induced epithelial K(+) and Na(+) movements in the salivary ducts of Periplaneta americana.
The localization of calcium release by inositol trisphosphate in Limulus photoreceptors and its control by negative feedback.
- R. Payne, B. Walz, S. Levy, A. Fein
- BiologyPhilosophical transactions of the Royal Society…
- 26 July 1988
It is suggested that feedback inhibition contributes to sensory adaptation in the photoreceptor and may account for oscillatory membrane responses sometimes observed with large injections of Ins(1,4,5)P3.
Calcium-sequestering smooth endoplasmic reticulum in retinula cells of the blowfly.
- B. Walz
- BiologyJournal of ultrastructure research
- 1 November 1982