Analysis of the functional role of Toll-like receptor-4 tyrosine phosphorylation.
Analysis of the functional role of Toll-like receptor-4 tyrosine phosphorylation.
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Toll样受体4酪氨酸磷酸化的功能作用分析。
DOI:
10.1007/978-1-59745-541-1_10
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Piao,Wenji
中科院分区:
文献类型:
--
作者:
Medvedev,AndreiE;Piao,Wenji
Toll-like receptors (TLRs) are principal innate immune sensors critically involved in the recognition of evolutionary conserved microbial and viral structures called “pathogen-associated molecular patterns”(PAMPs). Although recognition patterns of many TLRs have been characterized, molecular mechanisms that initiate TLR signaling are poorly understood. Since posttranslational modifications of many receptor systems are important in initiating signaling, we studied whether tyrosine phosphorylation of TLR4, the principal sensor of Gram-negative bacterial lipopolysaccharide (LPS) plays a role in TLR4 signaltransducing functions. We found that LPS induced TLR4 tyrosine phosphorylation and mutations of tyrosine residues in the Toll-IL-1R signaling domain markedly suppressed TLR4-mediated activation of JNK and p38 MAP kinases and transcription factors NF-κB, RANTES, and IFN-β. This chapter summarizes a combination of methodological approaches that can be used to demonstrate an indispensable role of TLR4 tyrosine phosphorylation in receptor signaling, including transient transfections, site-directed mutagenesis, immunoprecipitation and immunoblot analyses, and analyses of transcription factor activation in reporter assays.
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影响因子:
4.4
作者:
T. Mosmann;H. Cherwinski;M. Bond;M. Giedlin;R. Coffman
通讯作者:
T. Mosmann;H. Cherwinski;M. Bond;M. Giedlin;R. Coffman
影响因子:
158.5
作者:
HALL, CB;POWELL, KR;COHEN, HJ
通讯作者:
COHEN, HJ
DOI:
--
发表时间:
1970
期刊:
Archives of Environmental Health An International Journal
影响因子:
--
作者:
R. Chanock;A. Kapikian;J. Mills;H. W. Kim;R. Parrott
通讯作者:
R. Parrott
影响因子:
9.4
作者:
D. Wagner;B. Graham;P. Wright;E. Walsh;H. W. Kim;C. B. Reimer;D. Nelson;R. Chanock;B. Murphy
通讯作者:
B. Murphy
DOI:
10.1073/pnas.82.12.4075
发表时间:
1985-06
影响因子:
11.1
作者:
G. Wertz;P. Collins;Yung;Huang;C. Gruber;S. Levine;L. Ball
通讯作者:
G. Wertz;P. Collins;Yung;Huang;C. Gruber;S. Levine;L. Ball