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  • Anacardiaceae  (1)
  • Analytical Chemistry and Spectroscopy  (1)
  • Arginase  (1)
  • GTP cyclohydrolase II  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Rhusflavone: A new flavanoflavone from Rhus succedanea
    Amsterdam : Elsevier
    Phytochemistry 13 (1974), S. 1571-1574 
    Details
    ISSN: 0031-9422
    Keywords: 6,8''-naringeninylapigenin ; Anacardiaceae ; NMR data. ; Rhus succedanea ; flavanoflavone
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0031-9422(74)80330-4
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Immunohistochemical study of arginase in cancer of the stomach (1996)
    Springer
    Virchows Archiv 428 (1996), S. 325-331 
    Details
    ISSN: 1432-2307
    Keywords: Arginase ; Gastric cancer ; Immunohistochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract High levels of arginase have been detected in gastric adenocarcinoma. To examine the hypothesis that this is due to macrophage infiltration into the tumour, we localized the cellular distribution of arginase by immunohistochemical staining. We examined gastric adenocarcinomas and their corresponding normal tissues (n=45), leiomyomas (n=2), leiomyosarcomas (n=3), human gastric adenocarcinoma cell lines (n=3), and benign gastric ulcers (n=4) by the avidin-biotin-peroxidase complex technique. Macrophages with strong arginase immunoreactivity were observed infiltrating both gastric normal and cancer tissues. No arginase immunoreactivity was observed in normal mucosal gland, muscular and serosal tissues or benign gastric ulcers. The immunoreactivity of arginase was positive but heterogeneous in most specimens of gastric adenocarcinoma (62.2%) and was absent from gastric intestinal metaplasia, leiomyomas and leiomyosarcomas. Among the 28 neoplasms with arginase immunoreactivity, scattered immunoreactivity was also noted in adjacent dysplastic glands in 12 (42.8%) specimens. Arginase immunoreactivity was observed in all three gastric cancer cell lines. Arginase is present in the cytoplasm but not in the nucleus. These data suggest that the high arginase levels in adenocarcinoma cancer tissues originate largely from cancer cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00202199
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The reversed SoxS-binding site upstream of the ribA promoter in Escherichia coli (1999)
    Springer
    Molecular genetics and genomics 261 (1999), S. 374-380 
    Details
    ISSN: 1617-4623
    Keywords: Key wordsEscherichia coli ; ribA ; GTP cyclohydrolase II ; SoxS binding ; RNA polymerase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The ribA gene, encoding GTP cyclohydrolase II in Escherichia coli, is a member of the soxRS regulon, which is induced by superoxide-generating agents. By evaluating lacZ expression driven by the ribA promoter carrying different lengths of upstream region in a monolysogen, we found that the superoxide-responsive element resides between 56 and 94 nucleotides upstream of the transcriptional start site. Purified SoxS protein bound to this region and protected nucleotides between positions −80 and −58 from degradation by DNase I. This region contains a putative SoxS-binding sequence (soxbox) in reverse orientation. The SoxS protein interacted specifically with four guanine residues within the soxbox sequence, as demonstrated by methylation interference analysis. These results clearly indicate that SoxS binds to the reversed soxbox sequence in the ribA gene, while in other known genes of the soxRS regulon it binds to the normally oriented soxbox. Possible modes of interaction between SoxS and RNA polymerase are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004380050978
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  • 4
    Electronic Resource
    Electronic Resource
    Determination of aromatic composition of fuels by laser Raman spectroscopy (1991)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 22 (1991), S. 79-82 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The application of Raman spectroscopy to the determination of the aromatic content of gasolines and aviation fuels is reported. Since aromatic components have very high Raman cross-sections owing to large polarizability changes under laser excitation, bands from these components will dominate specific Raman spectral regions. It is expected, therefore, that Raman scattering will be a particularly useful approach to broadly characterizing the fuel hydrocarbon makeup for aromatic content and the properties of fuels which are influenced by aromatic content.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250220206
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    Paper (German National Licenses)
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