CBF - A biophysical perspective

被引:20
作者
Bushweller, JH [1 ]
机构
[1] Univ Virginia, Dept Mol Physiol & Biol Phys, Charlottesville, VA 22908 USA
关键词
core binding factor; CBF; Runx; AML1; leukemia; hematopoiesis; structure;
D O I
10.1006/scdb.2000.0182
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Core binding factor (CBF) is a heterodimeric transcription factor consisting of a DNA-binding subunit (Runx also referred to as CBFA, AML 1, PEBP2 alpha) and a non-DNA-binding subunit (CBFB). Biophysical characterization of the two proteins and their interactions is providing a detailed understanding of this important transcription factor at the molecular level. Measurements of the relevant binding constants are helping to elucidate the mechanism of leukemogenesis associated with altered forms of these proteins. Determination of the 3D structures of CBFB and the DNA- and CBFB-binding domain of Runx, referred to as the Runt domain, are providing a structural basis for the functioning of the two proteins of CBF.
引用
收藏
页码:377 / 382
页数:6
相关论文
共 33 条
[1]   The leukemic protein core binding factor β (CBFβ)-smooth-muscle myosin heavy chain sequesters CBFα2 into cytoskeletal filaments and aggregates [J].
Adya, N ;
Stacy, T ;
Speck, NA ;
Liu, PP .
MOLECULAR AND CELLULAR BIOLOGY, 1998, 18 (12) :7432-7443
[2]   Negative regulation of granulocytic differentiation in the myeloid precursor cell line 32Dcl3 by ear-2, a mammalian homolog of Drosophila seven-up, and a chimeric leukemogenic gene, AML1/ETO(MTG8) [J].
Ahn, MY ;
Huang, G ;
Bae, SC ;
Wee, HJ ;
Kim, WY ;
Ito, Y .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1998, 95 (04) :1812-1817
[3]   A simple screening for mutant DNA binding proteins: Application to murine transcription factor PEBP2 alpha subunit, a founding member of the Runt domain protein family [J].
Akamatsu, Y ;
Tsukumo, S ;
Kagoshima, H ;
Tsurushita, N ;
Shigesada, K .
GENE, 1997, 185 (01) :111-117
[4]   The Ig fold of the core binding factor α Runt domain is a member of a family of structurally and functionally related Ig-fold DNA-binding domains [J].
Berardi, MJ ;
Sun, CH ;
Zehr, M ;
Abildgaard, F ;
Peng, J ;
Speck, NA ;
Bushweller, JH .
STRUCTURE WITH FOLDING & DESIGN, 1999, 7 (10) :1247-1256
[5]   ALY, a context-dependent coactivator of LEF-1 and AML-1, is required for TCR alpha enhancer function [J].
Bruhn, L ;
Munnerlyn, A ;
Grosschedl, R .
GENES & DEVELOPMENT, 1997, 11 (05) :640-653
[6]   Biochemical and biophysical properties of the core-binding factor alpha 2 (AML1) DNA-binding domain [J].
Crute, BE ;
Lewis, AF ;
Wu, ZN ;
Bushweller, JH ;
Speck, NA .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1996, 271 (42) :26251-26260
[7]  
Goger M, 1999, NAT STRUCT BIOL, V6, P620
[8]  
Golling G, 1996, MOL CELL BIOL, V16, P932
[9]   Auto-inhibition and partner proteins, core-binding factor β (CBFβ) and Ets-1, modulate DNA finding by CBFα2 (AML1) [J].
Gu, TL ;
Goetz, TL ;
Graves, BJ ;
Speck, NA .
MOLECULAR AND CELLULAR BIOLOGY, 2000, 20 (01) :91-103
[10]   Overexpression, purification, and biophysical characterization of the heterodimerization domain of the core-binding factor β subunit [J].
Huang, XM ;
Crute, BE ;
Sun, CH ;
Tang, YY ;
Kelley, JJ ;
Lewis, AF ;
Hartman, KL ;
Laue, TM ;
Speck, NA ;
Bushweller, JH .
JOURNAL OF BIOLOGICAL CHEMISTRY, 1998, 273 (04) :2480-2487