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S. E. Reynolds Department of General Zoology, Eötvös Loránd University, Please ask the editor of the journal.

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P. Löw Department of General Zoology, Eötvös Loránd University, Please ask the editor of the journal.

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M. Sass Department of General Zoology, Eötvös Loránd University, Please ask the editor of the journal.

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The intersegmental muscles (ISMs) of tobacco hornworm, Manduca sexta are a well-characterised model system for examining the biochemical changes that accompany programmed cell death during develop- ment. When the ISMs become committed to die, there are dramatic increases in both the ubiquitin- expression, and ubiquitin-dependent proteolysis. Since the 26S proteasome is responsible for ATP/ubiq- uitin-dependent proteolysis in cells, we examined its enzymatic properties. Specific chymotrypsin-like proteolytic activity of 26S proteasomes isolated from ISM is four times higher than that of surviving flight muscle (FM). However, specific activity does not change between developmental stages within ISM or FM. The difference between proteolytic capacity of the two kinds of muscles is even higher when the ISM become committed to die because 26S proteasome content of ISM increases just before cell death. These observations underline the role of 26S proteasome in programmed cell death.

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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
Volumes
per Year
 
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per Year
 
Founder Magyar Tudományos Akadémia
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H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
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Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5383 (Print)
ISSN 1588-256X (Online)