Regulation of DNA binding activity of the ligand-activated aryl hydrocarbon receptor by tyrosine phosphorylation.
Regulation of DNA binding activity of the ligand-activated aryl hydrocarbon receptor by tyrosine phosphorylation.
复制标题
通过酪氨酸磷酸化调节配体激活的芳烃受体的 DNA 结合活性。
DOI:
10.1006/abbi.2000.1999
复制
发表时间:
2000
影响因子:
3.9
通讯作者:
Gasiewicz,TA
中科院分区:
文献类型:
--
作者:
Park,S;Henry,EC;Gasiewicz,TA
Aryl hydrocarbon receptor (AhR), a member of the bHLH–PAS family, is a ligand-activated transcription factor which plays an important role in normal liver development and in mediating the toxicity of polycyclic and halogenated aromatic hydrocarbon pollutants such as 2,3,7,8-tetrachlorodibenzo-p-dioxin. Phosphorylation is known to regulate the transformation process of unliganded AhR into functionally active AhR/ARNT heterodimer that has high affinity for dioxin-responsive elements (DRE) and transactivation activity. Here, we report that DRE binding activity of the AhR is regulated by phosphorylation on the AhR/ARNT complex itself. Studies with specific protein phosphatases indicated that tyrosine phosphorylation is involved in this modulation. In addition, the AhR is phosphorylated at tyrosine residue(s) as determined by anti-phosphotyrosine immunoblot analysis. These results suggest that tyrosine phosphorylation on the AhR is required for its DNA binding activity and may provide mammalian cells with another layer of control mechanism that allows cell type specific and developmental stage specific induction of the AhR target genes.
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DOI:
--
发表时间:
1994
期刊:
Biochemistry and molecular biology international
影响因子:
--
作者:
Kurl,RN
通讯作者:
Kurl,RN
影响因子:
3.5
作者:
DePetrillo,PB;Kurl,RN
通讯作者:
Kurl,RN
DOI:
10.1126/science.3856321
发表时间:
1985
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Jones,PB;Galeazzi,DR;Fisher,JM;WhitlockJr,JP
通讯作者:
WhitlockJr,JP
DOI:
10.1021/bi970891w
发表时间:
1997
期刊:
Biochemistry.
影响因子:
--
作者:
Tsai,JC;Perdew,GH
通讯作者:
Perdew,GH
影响因子:
4.8
作者:
P. Jones;L. Durrin;J. Fisher;J. Whitlock
通讯作者:
J. Whitlock