ZfN: Search Results

1	Author	R. Kanne, H. Zähner	Requires cookie*
	Title	Concentrations of W ild -T y p e and a Macrotetrolide Negative Mutant of Streptomyces griseus
	Abstract	The studied macrotetrolide negative mutant of Streptomyces griseus showed a different spe cificity of potassium accumulation than the macrotetrolide producing wild-type, indicating, that the macrotetrolides may be part of the physiological potassium carrier.
	Reference	(Z. Naturforsch. 31c, 115 [1976]; received November 3 1975)
	Published	1976
	Keywords	Potassium Sodium, Ionophores, Antibiotics, Transport
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	TEI-XML for	default:Reihe_C/31/ZNC-1976-31c-0115.pdf
	Identifier	ZNC-1976-31c-0115
	Volume	31

2	Author	R. Einhard Kanne	Requires cookie*
	Title	Isolation and Characterization of a Potassium Specific Ionophore from Streptococcus fuecalis
	Abstract	The synthesis of a potassium and rubidium specific ionophore by S treptococcu s faecalis has been proved, using bilayer measurements. The characteristics of this substance agree with the ones, published for free mobile carriers, such as valinomycin and the macrotetrolides.
	Reference	(Z. Naturforsch. 32c, 926 [1977]; received August 24 1977)
	Published	1977
	Keywords	Potassium, Ionophores, Transport, Antibiotics, Black Lipid Membranes
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	TEI-XML for	default:Reihe_C/32/ZNC-1977-32c-0926.pdf
	Identifier	ZNC-1977-32c-0926
	Volume	32

3	Author	G. Ünther, F. E. Scherer	Requires cookie*
	Title	A New M ethod to Prepare M em brane F ractions Containing Ionophore-Stim ulated A T P a se from Pumpkin H ypocotyls (Cucurbita maxima, L .)
	Abstract	In membrane fractions from pumpkin hypocotyls AT Pase activity was stimulated by a combination o f CCCP (carbonyl cyanide m-chlorophenylhydrazone), a pro-tonophore, and valinomycin, a K +-ionophore. Singly, these ionophores stimulated ATPase activity much less. Nigericin, an H+/K +-antiporter, and nystatin, a cation pore, had similar effects as the combination o f CCCP and valinomycin. The results suggest the presence o f a cation-translocating ATPase which is stimulated by ionophores by dissipating cation gradients formed in the vesicles. A major part of the ionophore-stimulated ATPase activity correlat ed with marker enzymes for plasma membranes but part o f it could be located in other compartments.
	Reference	Z. Naturforsch. 37c, 550 (1982); received March 5 1982
	Published	1982
	Keywords	H +-ATPase, Ionophores, Plasma Membrane, Cucurbita
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	TEI-XML for	default:Reihe_C/37/ZNC-1982-37c-0550_n.pdf
	Identifier	ZNC-1982-37c-0550_n
	Volume	37