title: A MENage à Trois in leukemia.
abstract: Menin binds to the N terminus of the chromatin-remodeling histone methyltransferase MLL and is essential for the transforming activity of at least several oncogenic MLL fusion proteins. In this issue, Yokoyama and Cleary (2008) show that menin's essential, and perhaps only, contribution to leukemia is to tether a third protein, LEDGF--a chromatin-associated protein implicated in leukemia and several other disease states--to MLL. Thus, this study identifies a new, critical player in leukemias caused by MLL fusion proteins and defines the biochemical function of menin in the MLL complex.
authors.affiliation: Department of Biochemistry, Dartmouth Medical School, Hanover, NH 03755, USA.
authors.forename: Liya
authors.initials: L
authors.lastname: Roudaia
authors.forename: Nancy A
authors.initials: NA
authors.lastname: Speck
mesh_terms: D048868:Adaptor Proteins, Signal Transducing / Q000235:genetics / Q000378:metabolism*; D000818:Animals; D002471:Cell Transformation, Neoplastic / Q000235:genetics / Q000378:metabolism* / Q000473:pathology; D002843:Chromatin / Q000378:metabolism; D042002:Chromatin Assembly and Disassembly; D015973:Gene Expression Regulation, Leukemic; D000076983:Histone Methyltransferases; D011495:Histone-Lysine N-Methyltransferase / Q000378:metabolism; D018398:Homeodomain Proteins / Q000235:genetics / Q000378:metabolism; D006801:Humans; D007938:Leukemia / Q000201:enzymology / Q000235:genetics / Q000378:metabolism* / Q000473:pathology; D018761:Multiple Endocrine Neoplasia Type 1 / Q000235:genetics / Q000378:metabolism; D009154:Mutation; D023461:Myeloid Progenitor Cells / Q000201:enzymology / Q000378:metabolism*; D051788:Myeloid-Lymphoid Leukemia Protein / Q000235:genetics / Q000378:metabolism*; D011485:Protein Binding; D011496:Protein Methyltransferases; D017434:Protein Structure, Tertiary; D011518:Proto-Oncogene Proteins / Q000235:genetics / Q000378:metabolism*; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism*; D014158:Transcription, Genetic; D025521:Tumor Suppressor Proteins / Q000235:genetics / Q000378:metabolism*
chemical_list: D048868:Adaptor Proteins, Signal Transducing; D002843:Chromatin; D018398:Homeodomain Proteins; C497422:KMT2A protein, human; C105373:MEN1 protein, human; C504649:PSIP1 protein, human; D011518:Proto-Oncogene Proteins; D014157:Transcription Factors; D025521:Tumor Suppressor Proteins; C097899:homeobox protein HOXA9; D051788:Myeloid-Lymphoid Leukemia Protein; D000076983:Histone Methyltransferases; D011496:Protein Methyltransferases; D011495:Histone-Lysine N-Methyltransferase