title: The LxxLL motif: a multifunctional binding sequence in transcriptional regulation.
abstract: LxxLL motifs participate in many protein-protein interactions associated with different aspects of transcriptional regulation. These motifs are present in many transcription factors and cofactors, mediating interactions that can activate or repress transcription. Several recently reported 3D structures of protein-LxxLL motif complexes and an intriguing novel interaction implicated in leukaemia have further highlighted the diversity and regulatory importance of this seemingly simple motif.
authors.affiliation: Division of Molecular and Structural Biology, Ontario Cancer Institute and Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 2M9, Canada.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Plevin
authors.forename: Morgon M
authors.initials: MM
authors.lastname: Mills
authors.forename: Mitsuhiko
authors.initials: M
authors.lastname: Ikura
mesh_terms: D020816:Amino Acid Motifs / Q000235:genetics*; D000595:Amino Acid Sequence; D000818:Animals; D001665:Binding Sites / Q000235:genetics; D050676:Core Binding Factor Alpha 2 Subunit; D005786:Gene Expression Regulation / Q000235:genetics*; D006801:Humans; D008954:Models, Biological; D008958:Models, Molecular; D008969:Molecular Sequence Data; D015514:Oncogene Proteins, Fusion / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D011485:Protein Binding; D011487:Protein Conformation; D000075142:RUNX1 Translocation Partner 1 Protein; D018160:Receptors, Cytoplasmic and Nuclear / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D012097:Repressor Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D017386:Sequence Homology, Amino Acid; D015534:Trans-Activators / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D014157:Transcription Factors / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*
chemical_list: C107844:AML1-ETO fusion protein, human; D050676:Core Binding Factor Alpha 2 Subunit; D015514:Oncogene Proteins, Fusion; D000075142:RUNX1 Translocation Partner 1 Protein; D018160:Receptors, Cytoplasmic and Nuclear; D012097:Repressor Proteins; D015534:Trans-Activators; D014157:Transcription Factors