title: Mapping of protein-protein interactions between c-myb and its coactivator CBP by a new phage display technique.
abstract: We have developed a phage display technique for the mapping of protein-protein interaction sites and characterized the interaction between the c-myb proto-oncogene product and its co-activator CBP. Arbitrary DNA segments of the c-myb gene were cloned into a modified phagemid which allowed for expression in all possible reading frames. The mini-library encompassing all functional domains of the protein was propagated as phages and screened with different bait proteins. Alignment of the sequences revealed that the amino acids 317-342 of Myb interact with the CBP protein. Furthermore, an intramolecular interaction of the N-terminal Myb DNA binding domain with the C-terminus (amino acids 541-567) could be detected.
authors.affiliation: Institut für Biophysikalische Chemie, Medizinische Hochschule Hannover, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Kiewitz
authors.forename: H
authors.initials: H
authors.lastname: Wolfes
mesh_terms: D000595:Amino Acid Sequence; D001435:Bacteriophages / Q000235:genetics / Q000378:metabolism*; D001665:Binding Sites; D050882:CREB-Binding Protein; D003001:Cloning, Molecular; D017362:Cyclic AMP Response Element-Binding Protein / Q000378:metabolism; D015870:Gene Expression; D015723:Gene Library; D006801:Humans; D008969:Molecular Sequence Data; D009687:Nuclear Proteins / Q000737:chemistry / Q000378:metabolism*; D009838:Oligodeoxyribonucleotides / Q000737:chemistry / Q000235:genetics; D009857:Oncogenes; D019151:Peptide Library; D011485:Protein Binding; D000090063:Proto-Oncogene Mas; D011518:Proto-Oncogene Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D020598:Proto-Oncogene Proteins c-myb; D011993:Recombinant Fusion Proteins / Q000378:metabolism; D017386:Sequence Homology, Amino Acid; D015534:Trans-Activators / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D014157:Transcription Factors / Q000737:chemistry / Q000378:metabolism*
chemical_list: D017362:Cyclic AMP Response Element-Binding Protein; C000715470:MAS1 protein, human; D009687:Nuclear Proteins; D009838:Oligodeoxyribonucleotides; D019151:Peptide Library; D000090063:Proto-Oncogene Mas; D011518:Proto-Oncogene Proteins; D020598:Proto-Oncogene Proteins c-myb; D011993:Recombinant Fusion Proteins; D015534:Trans-Activators; D014157:Transcription Factors; D050882:CREB-Binding Protein; C494363:CREBBP protein, human