Human Gene Set: KALMA_E2F1_TARGETS


Standard name KALMA_E2F1_TARGETS
Systematic name M10142
Brief description DNA replication genes up-regulated in a Rat-1a cell line (fibroblast) by expression of E2F1 [GeneID=1869].
Full description or abstract The transcription factor E2F-1 plays a pivotal role in the regulation of G1/S transition in higher eukaryotes cell cycle. We used a cell line containing an inducible E2F-1 and oligonucleotide microarray analysis to identify novel E2F target genes. We show that E2F-1 up-regulates the expression of a number of genes coding for components of the DNA replication machinery. Among them is the gene coding for the 32 Kd subunit of replication protein A (RPA2). Replication protein A is the most abundant single strand DNA binding complex and it is essential for DNA replication. We demonstrate that RPA2 is a novel E2F target gene whose expression can be directly regulated by E2F-1 via E2F binding sites in its promoter. In addition, expression of Topoisomerase IIalpha and subunit IV of DNA polymerase alpha is also up-regulated upon E2F-1 induction. Taken together, these results provide novel links between components of the DNA replication machinery and the cell growth regulatory pathway involving the Rb tumor suppressor and E2F.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 11313881   Authors: Kalma Y,Marash L,Lamed Y,Ginsberg D
Exact source Table 1: full names changed to symbols
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Source species Rattus norvegicus
Contributed by John Newman (University of Washington)
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Version history 3.0: Renamed from E2F1_DNA_UP

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