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  • 1
    Electronic Resource
    Electronic Resource
    Neue Lanthanoidmagnetoplumbite: LaFe11A1019, SmFe4Al8O19 und Eu0,83Fe2Al10O19 (1982)
    Springer
    Monatshefte für Chemie 113 (1982), S. 1079-1085 
    Details
    ISSN: 1434-4475
    Keywords: Aluminium ; Crystal Structure ; Iron ; Oxygen ; Rare Earth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract New compounds of magnetoplumbite structure with rare earth-ions were prepared by solid state reactions and determined by X-ray single crystal work. They crystallize in space group D 6h 4 -P63/mmc withA:a=582.6,c=2283;B:a=563.4,c=2208;C:a=565.8,c=2218 pm. The distribution of Fe and Al to the metal positions were determined and the thermal ellipsoids of the metal positions are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00808621
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  • 2
    Electronic Resource
    Electronic Resource
    Über einen ungewöhnlichen Saponit von Raschau i. Sa. (1950)
    Springer
    Contributions to mineralogy and petrology 2 (1950), S. 279-290 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01098088
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  • 3
    Electronic Resource
    Electronic Resource
    Die Tonsteine aus den Steinkohlenflözen von Dobrilugk und ihre Entstehung (1951)
    Springer
    Contributions to mineralogy and petrology 2 (1951), S. 413-427 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Zusammenfassung Es werden Tonsteine beschrieben, die als „biochemische” Sedimente im Steinkohlenmoor gebildet wurden. Die bisherige Deutung, solche Tonsteine seien ehemalige vulkanische Aschentuffe, wird als zur Zeit petrographisch unbegründet abgelehnt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01083630
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  • 4
    Electronic Resource
    Electronic Resource
    Die Diorite von Dessau (1952)
    Springer
    Contributions to mineralogy and petrology 3 (1952), S. 77-96 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Zusammenfassung Petrographische und chemische Untersuchungen an Dioriten und Graniten des Kyffhäuser und von Dessau lassen eine Ichor-Metamorphose, d. h. eine Alkali-Metasomatose von den Porenräumen aus, erkennen. In den metamorph-metablastischen Granitabkömmlingen wird die Ichor-Metamorphose deutlich an einer Glomeroblastenbildung und einer erneuten körnigen Texturentwicklung. Diese beweist eine Zufuhr von Albitmolekül. Sie wird in dem metamorph-metablastischen dioritischen Gestein neben der Verdrängung der primären Plagioklase aus der Alkalisierung und Enteisenung der Hornblende ersichtlich. Die magmatischen Ausgangsgesteine: Diorit, Quarzdiorit, Biotitdiorit, Gabbrodiorit (?) und Hornblendegabbro zeigen neben der Alkalisierung eine Muskovitisierung der basischen Plagioklase und eine Biotitisierung der Hornblende, woraus eine Zufuhr an Kali hervorgeht. Diese Stadien der Metamorphose durchlaufen den tektonischen Raum von der Grenze metamorph-nichtmetamorph bis hinab zur Grenze metamorph-magmatisch (Erdmannsdörffer) und rind in der Mitteldeutschen Schwelle zuerst aus dem tiefsten Stockwerk, im Südwesten im Odenwald-Spessart (Erdmannsdörffer) und nunmehr auch aus ihrer äußersten Haube erkannt worden, wo die Schwelle unter die Phyllithülle hinabtaucht.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01130079
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  • 5
    Electronic Resource
    Electronic Resource
    Molecular cloning and analysis of the nuclear gene MRP-L6 coding for a putative mitochondrial ribosomal protein from Saccharomyces cerevisiae (1993)
    Springer
    Current genetics 24 (1993), S. 136-140 
    Details
    ISSN: 1432-0983
    Keywords: Mitochondria ; Ribosomal protein ; Nuclear gene ; pet mutant ; yeast
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The Saccharomyces cerevisiae nuclear gene MRP-L6 was cloned by complementation of the respiratory-deficient mutant pet-ts 2523 with a library of wildtype yeast genomic DNA. The isolated gene was part of a 3.8-kb sequenced DNA fragment containing, in addition to MRP-L6, two unassigned reading frames, ORF1 and ORF2. MRP-L6 codes for a basic protein of 205 amino acids and a molecular mass of 22.8 kDa. The protein exhibits significant sequence similarity to the ribosomal protein L6 of bacteria and chloroplasts. Unlike the corresponding bacterial proteins, however, the MRP-L6 protein (MRP-L6p) contains at its N-terminus a 16 amino-acid leader sequence exhibiting the known characteristics of mitochondrial import signals. Disruption of MRP-L6 leads to the phenotype of a mitochondrial translation-defective, rho-negative yeast mutant. The results are consistent with MRP-L6p representing an essential component of yeast mitochondrial ribosomes. Expression of MRP-L6 was examined, under conditions of glucose repression and derepression, in wild-type cells and in a series of catabolite repression-defective yeast mutants. In most cases, a distinct though small influence of the carbon source on the expression of an MRP-L6/lacZ reporter construct was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00324677
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  • 6
    Electronic Resource
    Electronic Resource
    Über den Nachweis von echtem Leverrierit in Tonsteinen aus unterkarbonischen Steinkohlenflözen von Dobrilugk (1950)
    Springer
    Contributions to mineralogy and petrology 2 (1950), S. 269-278 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Zusammenfassung Die Existenz des Leverrierit als selbständiges Mineral wird mineralogisch (A. Schüller) und chemisch (H. Grassmann) nachgewiesen. Zusammenfassend seien die Eigenschaften des Leverrierit und des mit ihm verwechselten Kaolinit gegenübergestellt (Tabelle 4).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01098087
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  • 7
    Electronic Resource
    Electronic Resource
    Eine natürliche Mineralsynthese von Montmorillonit im Nephelinbasalt des Großen Dolmar bei Meiningen (Rhön). (1953)
    Springer
    Contributions to mineralogy and petrology 3 (1953), S. 472-494 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01129199
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  • 8
    Electronic Resource
    Electronic Resource
    Structure and regulation of the isocitrate lyase gene ICL1 from the yeast Saccharomyces cerevisiae (1993)
    Springer
    Current genetics 23 (1993), S. 375-381 
    Details
    ISSN: 1432-0983
    Keywords: Saccharomyces cerevisiae ; Isocitrate lyase ; Gene regulation ; Ethanol induction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The ICL1 gene encoding the isocitrate lyase from Saccharomyces cerevisiae was cloned and sequenced. A reading frame of 557 amino acids showing significant similarity to isocitrate lyases from seven other species could be identified. Construction of icl1 null mutants led to growth defects on C2 carbon sources while utilization of sugars or C3 substrates remained unaffected. Using an ICL1-lacZ fusion integrated at the ICL1 locus, a more than 200-fold induction of β-galactosidase activity was observed after growth on ethanol when compared with glucose-repressed conditions. A preliminary analysis of the ICL1 upstream region identified a 364-bp fragment necessary and sufficient for this regulatory phenotype. Sequence motifs also present in the upstream regions of co-regulated genes were found within this region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00312621
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  • 9
    Electronic Resource
    Electronic Resource
    Identification of UAS elements and binding proteins necessary for derepression of Saccharomyces cerevisiae fructose-1,6-bisphosphatase (1992)
    Springer
    Current genetics 22 (1992), S. 363-370 
    Details
    ISSN: 1432-0983
    Keywords: Saccharomyces cerevisiae ; Fructose-1,6-bisphosphatase ; Glucose repression ; Gene activation ; Gluconeogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Fructose-1,6-bisphosphatase is a key enzyme in gluconeogenesis and the FBP1 gene is not transcribed during growth with glucose. Genetic analysis indicated a positive regulation of FBP1 expression after exhaustion of glucose. By linker-deletion analysis, two upstream activation sites (UAS1 and UAS2) were localized and the respective UAS-binding factors (DAP I and DAP II for derepression activating protein) were identified by gel retardation. UAS1 and UAS2 span about 30 bp each, and are separated by approximately 30 bp. Both UAS sites act synergistically. Although UAS1 showed some similarities to the DNA-binding consensus for the general yeast activator Rap1, competition experiments and DEAE-chromatography proved that DAP I and Rap1 correspond to different proteins. Gel retardation by DAP I depended on carbon sources and did not occur in cells growing logarithmically with glucose, whereas a strong retardation signal was obtained with ethanol-grown cells. The present results suggest that DAP I and DAP II are the final regulatory elements for glucose derepression.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00352437
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  • 10
    Electronic Resource
    Electronic Resource
    The fluidity of plasma membranes from ethanol-treated rat liver (1984)
    Springer
    Molecular and cellular biochemistry 64 (1984), S. 89-95 
    Details
    ISSN: 1573-4919
    Keywords: ethanol ; plasma membranes ; phospholipid (rat liver) ; miocroviscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Summary Male Wistar rats were maintained for 35–40 days on a liquid diet containing 36% of calories as ethanol. Ethanol was replaced by carbohydrates in the isocaloric diet fed to control animals. The effect of ethanol consumption has been studied on the fluorescence polarization of rat liver plasma membranes and artificial lipid vesicles and on the lipid composition of the membranes. Fluorescence polarization in both membranes and vesicles was determined using DPH and TMA-DPH as fluorescence markers; from these data, the polarization term (ro/r−1)−1 and flow activation energy (ΔE) were calculated. The ethanol consumption induces a more fluid environment within the membrane core of liver plasma membranes; the ethanol-fed rat membranes are more resistant to the in vitro effect of ethanol disordering the membrane structure. Vesicles obtained with lipids from either control membranes or ethanol-fed rat membranes were treated with ethanol and the changes in polarization paralleled to those exhibited by the membranes. The absence of phase transitions and of ΔE changes was also shown in temperature-dependence studies. The lower cholesterol content found in ethanol-fed rat plasma membranes might be responsible for observed variations in the microviscosity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00420932
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