Abstract
The transcription factor E2F controls the expression of several proliferation-related genes and is a target of the adenovirus E1A oncogene. In human cells, both cyclin A and the cdk2 protein kinase were found in complexes with E2F. Although the total amounts of cdk2 were constant in the cell cycle, binding to E2F was detected only when cells entered S phase, a time when the cdk2 kinase is activated. These data suggest that the interaction between cdk2 and E2F requires an active kinase that has cyclin A as a targeting component.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adenovirus Early Proteins
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Base Sequence
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CDC2-CDC28 Kinases*
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Carrier Proteins*
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Cell Cycle
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Cell Cycle Proteins*
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Cyclin-Dependent Kinase 2
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Cyclin-Dependent Kinases*
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Cyclins / metabolism*
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DNA-Binding Proteins*
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E2F Transcription Factors
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HeLa Cells
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Humans
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Macromolecular Substances
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Molecular Sequence Data
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Oligodeoxyribonucleotides / chemistry
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Oncogene Proteins, Viral / genetics
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Protamine Kinase / metabolism
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Protein Kinases / metabolism*
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Protein Serine-Threonine Kinases*
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Retinoblastoma-Binding Protein 1
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S Phase*
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Transcription Factor DP1
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Transcription Factors / metabolism*
Substances
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Adenovirus Early Proteins
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Carrier Proteins
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Cell Cycle Proteins
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Cyclins
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DNA-Binding Proteins
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E2F Transcription Factors
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Macromolecular Substances
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Oligodeoxyribonucleotides
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Oncogene Proteins, Viral
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Retinoblastoma-Binding Protein 1
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Transcription Factor DP1
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Transcription Factors
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Protein Kinases
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Protamine Kinase
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Protein Serine-Threonine Kinases
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CDC2-CDC28 Kinases
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CDK2 protein, human
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Cyclin-Dependent Kinase 2
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Cyclin-Dependent Kinases