RETRACTED: Regulation of β-catenin structure and activity by tyrosine phosphorylation (Retracted Article)

被引:201
作者
Piedra, J
Martínez, D
Castaño, J
Miravet, S
Duñach, M
de Herreros, AG
机构
[1] Univ Pompeu Fabra, Inst Municipal Invest Med, Unit Biol Cellular & Mol, Barcelona 08003, Spain
[2] Univ Autonoma Barcelona, Fac Med, Dept Bioquim & Biol Mol, Unit Biofis, Bellaterra 08193, Spain
关键词
D O I
10.1074/jbc.M100194200
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
beta -Catenin plays a dual role as a key effector in the regulation of adherens junctions and as a transcriptional coactivator. Phosphorylation of Tyr-654, a residue placed in the last armadillo repeat of beta -catenin, decreases its binding to E-cadherin. We show here that phosphorylation of Tyr-654 also stimulates the association of beta -catenin to the basal transcription factor TATA-binding protein. The structural bases of these different affinities were investigated. Our results indicate that the beta -catenin C-terminal tail interacts with the armadillo repeat domain, hindering the association of the armadillo region to the TATA-binding protein or to E-cadherin. Phosphorylation of beta -catenin Tyr-654 decreases armadillo-C-terminal tail association, uncovering the last armadillo repeats. in a C-terminal-depleted beta -catenin, the presence of a negative charge at Tyr-654 does not affect the interaction of the TATA-binding protein to the armadillo domain. However, in the case of E-cadherin, the establishment of ion pairs dominates its association with beta -catenin, and its binding is greatly dependent on the absence of a negative charge at Tyr-654. Thus, phosphorylation of Tyr-654 blocks the E-cadherin-beta -catenin interaction, even though the steric hindrance of the C-tail is no longer present. These results explain how phosphorylation of beta -catenin in Tyr-654 modifies the tertiary structure of this protein and the interaction with its different partners.
引用
收藏
页码:20436 / 20443
页数:8
相关论文
共 42 条
[1]  
ABERLE H, 1994, J CELL SCI, V107, P3655
[2]   Regulated binding of a PTP1B-like phosphatase to N-cadherin: Control of cadherin-mediated adhesion by dephosphorylation of beta-catenin [J].
Balsamo, J ;
Leung, TC ;
Ernst, H ;
Zanin, MKB ;
Hoffman, S ;
Lilien, J .
JOURNAL OF CELL BIOLOGY, 1996, 134 (03) :801-813
[3]   Pontin52, an interacticon partner of β-catenin, binds to the TATA box binding protein [J].
Bauer, A ;
Huber, O ;
Kemler, R .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1998, 95 (25) :14787-14792
[4]   Adenomatous polyposis coil protein (APC)-independent regulation of β-catenin/Tcf-4 mediated transcription in intestinal cells [J].
Baulida, J ;
Batlle, E ;
de Herreros, AG .
BIOCHEMICAL JOURNAL, 1999, 344 :565-570
[5]   β-catenin-histone deacetylase interactions regulate the transition of LEF1 from a transcriptional repressor to an activator [J].
Billin, AN ;
Thirlwell, H ;
Ayer, DE .
MOLECULAR AND CELLULAR BIOLOGY, 2000, 20 (18) :6882-6890
[6]   Wnt signaling: a common theme in animal development [J].
Cadigan, KM ;
Nusse, R .
GENES & DEVELOPMENT, 1997, 11 (24) :3286-3305
[7]  
Cox RT, 1999, GENETICS, V153, P319
[8]   Tyrosine phosphorylation and cadherin/catenin function [J].
Daniel, JM ;
Reynolds, AB .
BIOESSAYS, 1997, 19 (10) :883-891
[9]   Cross-regulation of β-catenin-LEF/TCF and retinoid signaling pathways [J].
Easwaran, V ;
Pishvaian, M ;
Salimuddin ;
Byers, S .
CURRENT BIOLOGY, 1999, 9 (23) :1415-1418
[10]   The C-terminal domain of Armadillo binds to hypophosphorylated Teashirt to modulate Wingless signalling in Drosophila [J].
Gallet, A ;
Angelats, C ;
Erkner, A ;
Charroux, B ;
Fasano, L ;
Kerridge, S .
EMBO JOURNAL, 1999, 18 (08) :2208-2217