Structural basis for p300 Taz2-p53 TAD1 binding and modulation by phosphorylation.

Structural basis for p300 Taz2-p53 TAD1 binding and modulation by phosphorylation.
复制标题

DOI:
10.1016/j.str.2008.12.009
复制
发表时间:
2009-02-13
期刊:
Structure (London, England : 1993)
影响因子:
--
通讯作者:
Bai Y
Bai Y
中科院分区:
其他
文献类型:
--
作者:
Feng H;Jenkins LM;Durell SR;Hayashi R;Mazur SJ;Cherry S;Tropea JE;Miller M;Wlodawer A;Appella E;Bai Y

文献摘要

参考文献

被引文献

相似文献

协同激活因子CBP和p300在介导p53的转录活性中发挥重要作用。然而,到目前为止,还没有关于p300结构域如何与p53相互作用的详细结构信息。在这里,我们报道了p300的Taz2 (C/H3)结构域和p53的n端转激活结构域的复合物的核磁共振结构。在该复合体中,p53形成一个短α-螺旋,并通过延伸表面与Taz2结构域相互作用。突变分析表明疏水残基对络合物稳定的重要性。此外,他们认为Taz2对Thr18磷酸化的p531-39的亲和力增加部分是由于磷酸与Taz2中邻近精氨酸残基的静电相互作用。热力学实验揭示了在Ser15和Thr18位点磷酸化的Taz2与p53复合物中疏水相互作用的重要性。
Coactivators CBP and p300 play important roles in mediating the transcriptional activity of p53. Until now, however, no detailed structural information has been available on how any of the domains of p300 interact with p53. Here, we report the NMR structure of the complex of the Taz2 (C/H3) domain of p300 and the N-terminal transactivation domain of p53. In the complex, p53 forms a short α-helix and interacts with the Taz2 domain through an extended surface. Mutational analyses demonstrate the importance of hydrophobic residues for complex stabilization. Additionally, they suggest that the increased affinity of Taz2 for p531-39 phosphorylated at Thr18 is due in part to electrostatic interactions of the phosphate with neighboring arginine residues in Taz2. Thermodynamic experiments revealed the importance of hydrophobic interactions in the complex of Taz2 with p53 phosphorylated at Ser15 and Thr18.
DOI: 10.1016/s0092-8674(00)80304-9
发表时间: 1997-06-27
期刊: CELL
影响因子: 64.5
作者:
Avantaggiati, ML;Ogryzko, V;Kelly, K
通讯作者: Kelly, K
DOI: 10.1093/nar/gkm216
发表时间: 2007-07
影响因子: 14.9
作者:
Davis IW;Leaver-Fay A;Chen VB;Block JN;Kapral GJ;Wang X;Murray LW;Arendall WB 3rd;Snoeyink J;Richardson JS;Richardson DC
通讯作者: Richardson DC
DOI: 10.4161/cc.7.2.5236
发表时间: 2008-01-15
期刊: CELL CYCLE
影响因子: 4.3
作者:
Das, Sanjeev;Boswell, Sarah A.;Lee, Sam W.
通讯作者: Lee, Sam W.
DOI: 10.1038/sj.emboj.7600239
发表时间: 2004-06-02
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
Hsu, CH;Chang, MDT;Juan, LJ
通讯作者: Juan, LJ
DOI: 10.1073/pnas.83.21.8069
发表时间: 1986-11-01
影响因子: 11.1
作者:
BALDWIN, RL
通讯作者: BALDWIN, RL