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  • 1 Hungarian Academy of Sciences Institute of Biochemistry, Biological Research Center Szeged Hungary
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The anaphase promoting complex or cyclosome (APC/C) is a large protein complex with an ubiquitin ligase activity which specifically targets mitotic regulatory proteins for proteasomal degradation. The APC/C contains at least 11 subunits, most of which are evolutionarily conserved from yeasts to humans. We have isolated and characterized mutant alleles of the gene that codes for the APC10/Doc1 subunit of the Drosophila APC/C. Loss of function APC10/Doc1 mutants have rudimentary imaginal discs and arrest their development as prepupae. Larval neuroblasts from these mutants show gross mitotic defects including high mitotic index, chromosome overcondensation, metaphase-like arrest and frequent aneuploid and polyploid cells. Mitotically arrested cells accumulate one of the main substrates of APC/C, cyclin B, most likely due to disabled ubiquitination activity. Our results suggest that the Apc10/Doc1 subunit has an essential role in establishing E3 ubiquitin ligase activity of APC/C in Drosophila .

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Editorial Board

    1. Csányi, Vilmos (Göd)
    1. Dudits, Dénes (Szeged)
    1. Falus, András (Budapest)
    1. Fischer, Ernő (Pécs)
    1. Gábriel, Róbert (Pécs)
    1. Gulya, Károly (Szeged)
    1. Gulyás, Balázs (Stockholm)
    1. Hajós, Ferenc (Budapest)
    1. Hámori, József (Budapest)
    1. Heszky, László (Gödöllő)
    1. Hideg, Éva (Szeged)
    1. E. Ito (Sanuki)
    1. Janda, Tibor (Martonvásár)
    1. Kavanaugh, Michael P. (Missoula)
    1. Kása, Péter (Szeged)
    1. Klein, Éva (Stockholm)
    1. Kovács, János (Budapest)
    1. Brigitte Mauch-Mani (Neuchâtel)
    1. Nässel, Dick R. (Stockholm)
    1. Nemcsók, János (Szeged)
    1. Péczely, Péter (Gödöllő)
    1. Roberts, D. F. (Newcastle-upon-Tyne)
    1. Sakharov, Dimitri A. (Moscow)
    1. Singh, Meharvan (Fort Worth)
    1. Sipiczky, Mátyás (Debrecen)
    1. Szeberényi, József (Pécs)
    1. Székely, György (Debrecen)
    1. Tari, Irma (Szeged)
    1. Vágvölgyi, Csaba (Szeged),
    1. L. Zaborszky (Newark)

 

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Acta Biologica Hungarica
Language English
Size  
Year of
Foundation
1950
Publication
Programme
changed title
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per Year
 
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per Year
 
Founder Magyar Tudományos Akadémia
Founder's
Address
H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
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H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5383 (Print)
ISSN 1588-256X (Online)