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001-es BibID:	BIBFORM047876
035-os BibID:	PMID:16369566
Első szerző:	Page, Andrew R.
Cím:	Spotted-dick, a zinc-finger protein of Drosophila required for expression of Orc4 and S phase / Andrew R. Page, Andras Kovacs, Peter Deak, Tibor Török, Istvan Kiss, Paulo Dario, Cristina Bastos, Pedro Batista, Rui Gomes, Hiro Ohkura, Steven Russell, David M. Glover
Dátum:	2005
ISSN:	0261-4189
Megjegyzések:	The highly condensed chromosomes and chromosome breaks in mitotic cells of a Drosophila mutant, spotted-dick/pita, are the consequence of defects in DNA replication. Reduction of levels of Spotted-dick protein, by either RNAi or mutation, leads to the accumulation of cells that have DNA content intermediate to 2N and 4N in proliferating tissues and also compromises endoreduplication in larval salivary glands. The Spotted-dick Zinc-finger protein is present in the nuclei of cells committed to proliferation but necessary in cells undertaking S phase. We show that Spotted-dick/Pita functions as a transcription factor and that, in cultured S2 cells, it is an activator of expression of some 30 genes that include the Orc4 gene, required for initiation of DNA replication. Chromatin immunoprecipitation indicates that it associates with the genes that it activates in S2 cells together with other sites that could represent genes activated in other tissues. We discuss the role of Spotted-dick in the coordination of cellular growth and DNA replication.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	EMBO Journal. - 24 : 24 (2005), p. 4304-4315. -
További szerzők:	Kovács András László (1969-) (biológus, biológia-kémia tanár) Deák Péter Török Tibor Kiss István (Szeged) Dario, Paulo Bastos, Cristina Batista, Pedro Gomes, Rui Ohkura, Hiro Russell, Steven Glover, David
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