M Krüger

Philipps University of Marburg, Marburg, Hesse, Germany

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Publications (1)10.75 Total impact

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    M Krüger, R Fischer
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    ABSTRACT: Genetic features determine the site of polarized growth in filamentous fungi and lead to hyphal tip extension or subapical branching. We have isolated the samB gene (suppressor of anucleate metulae) of Aspergillus nidulans which encodes a 66 kDa protein carrying an atypical Cys4 and an additional Cys2/His/Cys Zn finger motif at the carboxy-terminus. Such novel Zn finger-like domains have recently been found in several other developmental regulators in organisms ranging from yeast to man. Deletion of this domain at the carboxy-terminus of SamB led to premature hyphal ramification, mislocalization of septa and suppression of the asporogenous phenotype of the developmental mutant aps (anucleate primary sterigmata). A DeltasamB deletion strain displayed an identical phenotype. A homologous gene in Saccharomyces cerevisiae was also characterized whose deletion resulted in a multi-budding phenotype; thus it was named MUB1. An underlying common mechanism for both genes in determination of the onset of polarized growth and its links to other cellular developmental processes is discussed.
    The EMBO Journal 02/1998; 17(1):204-14. DOI:10.1093/emboj/17.1.204 · 10.75 Impact Factor

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14 Citations
10.75 Total Impact Points

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  • 1998
    • Philipps University of Marburg
      Marburg, Hesse, Germany