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  • Neurospora  (2)
  • Springer  (2)
  • American Association for the Advancement of Science
  • American Chemical Society
  • American Institute of Physics (AIP)
  • 1985-1989  (2)
  • 1955-1959
  • 1935-1939
  • 1915-1919
Collection
Keywords
Publisher
  • Springer  (2)
  • American Association for the Advancement of Science
  • American Chemical Society
  • American Institute of Physics (AIP)
Years
  • 1985-1989  (2)
  • 1955-1959
  • 1935-1939
  • 1915-1919
Year
  • 1
    Electronic Resource
    Electronic Resource
    Inducible responses to DNA damaging or stress inducing agents in Neurospora crassa (1989)
    Springer
    Current genetics 15 (1989), S. 47-55 
    Details
    ISSN: 1432-0983
    Keywords: DNA damage ; Protein induction ; Neurospora
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Two-dimensional polyacrylamide gel electrophoresis has been used to analyze proteins from wild type and mutagen sensitive mutants of Neurospora crassa under constitutive conditions and after treatment with mutagens and other stress inducing agents. Several proteins have been detected that are either induced or show changes in electrophoretic mobility in response to UV irradiation, 4-NQO, X-ray, paraquat and heat shock. Ten proteins were found to respond to more than one of the stress inducing agents, demonstrating a complex pattern of polypeptide inductions. The significance of these findings and the possible effects of some of these proteins on the DNA repair process and stress management are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00445751
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  • 2
    Electronic Resource
    Electronic Resource
    Relationship of histidine sensitivity to DNA damage and stress induced responses in mutagen sensitive mutants of Neurospora crassa (1988)
    Springer
    Current genetics 13 (1988), S. 391-399 
    Details
    ISSN: 1432-0983
    Keywords: Histidine sensitivity ; DNA damage ; Protein induction ; Neurospora
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Previous work in other laboratories has shown that several mutagen sensitive mutants of Neurospora crassa are extremely sensitive to low levels of histidine in the culture medium. We have shown that wild type Neurospora accumulates nicks or breaks in the DNA in the presence of histidine. The number of nicks accumulating in histidine sensitive mutants is found to increase in relation to their sensitivity to histidine. Although these nicks can be repaired by both wild type and histidine sensitive mutants when histidine is removed from the medium, a steady state number of nicks exists as long as histidine is present. We suggest that the presence of these nicks or breaks induces an increase in recombination in these possibly recombination defective mutants and that this is the source of the high level of histidine sensitivity. We speculate on the mechanisms by which histidine induces this DNA damage. This report also shows that several polypeptides are induced by the wild type organism in the presence of histidine. Some of these polypeptides are also induced during other stress situations, such as heat shock and DNA damage due to ultraviolet irradiation. Two of the histidine induced proteins cannot be induced by any of the histidine sensitive mutants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00365660
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    Paper (German National Licenses)
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