title: Nuclear translocation of lysyl oxidase is promoted by interaction with transcription repressor p66β.
abstract: Lysyl oxidase (LOX) is an amine oxidase involved in protein cross-linking of the extracellular matrix. Less well characterized is the role that LOX plays among nuclear proteins, and molecular mechanisms of its transport to the nucleus are currently unknown. Here, we have employed yeast two-hybrid library screening and found that the LOX catalytic domain interacts with the transcription repressor p66β. This interaction has been confirmed in vitro and has been found to be accomplished through the CR2-containing domain of p66β. Moreover, co-expression of p66β and LOX in living tumor cells leads to the nuclear accumulation of LOX. Thus, p66β might be important for the regulation of LOX in the nucleus.
authors.affiliation: Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Moscow, 117997, Russia.
authors.forename: Irina A
authors.initials: IA
authors.lastname: Okkelman
authors.forename: Alia Z
authors.initials: AZ
authors.lastname: Sukaeva
authors.forename: Ekaterina V
authors.initials: EV
authors.lastname: Kirukhina
authors.forename: Tatyana V
authors.initials: TV
authors.lastname: Korneenko
authors.forename: Nikolay B
authors.initials: NB
authors.lastname: Pestov
mesh_terms: D000818:Animals; D020134:Catalytic Domain; D002460:Cell Line; D002467:Cell Nucleus / Q000378:metabolism*; D006801:Humans; D008954:Models, Biological; D011485:Protein Binding; D025941:Protein Interaction Mapping; D021381:Protein Transport; D008249:Protein-Lysine 6-Oxidase / Q000737:chemistry / Q000378:metabolism*; D012097:Repressor Proteins / Q000378:metabolism*; D020798:Two-Hybrid System Techniques
chemical_list: C468770:GATAD2B protein, human; D012097:Repressor Proteins; D008249:Protein-Lysine 6-Oxidase