Abstract
FK506-binding proteins (FKBPs) are cellular receptors for immunosuppressants that belong to a subgroup of proteins, known as immunophilins, with peptidylprolyl cis-trans isomerase (PPIase) activity. Sequence comparison suggested that the HD2-type histone deacetylases and the FKBP-type PPIases may have evolved from a common ancestor enzyme. Here we show that FKBP25 physically associates with the histone deacetylases HDAC1 and HDAC2 and with the HDAC-binding transcriptional regulator YY1. An FKBP25 immunoprecipitated complex contains deacetylase activity, and this activity is associated with the N-terminus of FKBP25, distinct from the FK506/rapamycin-binding domain. Furthermore, FKBP25 can alter the DNA-binding activity of YY1. Together, our data firmly establish a relationship between histone deacetylases and the FKBP enzymes and provide a novel and critical function for the FKBPs.
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Base Sequence
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Binding Sites
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Cloning, Molecular
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Consensus Sequence
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DNA-Binding Proteins / genetics
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DNA-Binding Proteins / metabolism*
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Erythroid-Specific DNA-Binding Factors
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Escherichia coli
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Genes, Reporter
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Glutathione Transferase / genetics
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Glutathione Transferase / metabolism
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HeLa Cells
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Histone Deacetylase 1
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Histone Deacetylase 2
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Histone Deacetylases / metabolism*
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Humans
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Jurkat Cells
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Kinetics
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Luciferases / genetics
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Nuclear Proteins / metabolism
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Oligodeoxyribonucleotides / chemistry
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Oligodeoxyribonucleotides / metabolism
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Recombinant Fusion Proteins / metabolism
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Repressor Proteins*
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Tacrolimus Binding Proteins / metabolism*
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Transcription Factors / genetics
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Transcription Factors / metabolism*
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Transcription, Genetic
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Transfection
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YY1 Transcription Factor
Substances
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DNA-Binding Proteins
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Erythroid-Specific DNA-Binding Factors
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Nuclear Proteins
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Oligodeoxyribonucleotides
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Recombinant Fusion Proteins
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Repressor Proteins
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Transcription Factors
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YY1 Transcription Factor
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YY1 protein, human
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FKBP3 protein, human
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Luciferases
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Glutathione Transferase
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HDAC1 protein, human
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Histone Deacetylase 1
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Histone Deacetylase 2
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Histone Deacetylases
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Tacrolimus Binding Proteins