Document Detail


STAT3 as an adapter to couple phosphatidylinositol 3-kinase to the IFNAR1 chain of the type I interferon receptor.
MedLine Citation:
PMID:  9162009     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
STAT (signal transducers and activators of transcription) proteins undergo cytokine-dependent phosphorylation on serine and tyrosine. STAT3, a transcription factor for acute phase response genes, was found to act as an adapter molecule in signal transduction from the type I interferon receptor. STAT3 bound to a conserved sequence in the cytoplasmic tail of the IFNAR1 chain of the receptor and underwent interferon-dependent tyrosine phosphorylation. The p85 regulatory subunit of phosphatidylinositol 3-kinase, which activates a series of serine kinases, bound to phosphorylated STAT3 and subsequently underwent tyrosine phosphorylation. Thus, STAT3 acts as an adapter to couple another signaling pathway to the interferon receptor.
Authors:
L M Pfeffer; J E Mullersman; S R Pfeffer; A Murti; W Shi; C H Yang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  276     ISSN:  0036-8075     ISO Abbreviation:  Science     Publication Date:  1997 May 
Date Detail:
Created Date:  1997-06-16     Completed Date:  1997-06-16     Revised Date:  2007-03-19    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1418-20     Citation Subset:  IM    
Affiliation:
Department of Pathology, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
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MeSH Terms
Descriptor/Qualifier:
1-Phosphatidylinositol 3-Kinase
Acute-Phase Proteins / genetics*
Amino Acid Sequence
Androstadienes / pharmacology
Animals
Binding Sites
COS Cells
Cell Line
Cloning, Molecular
Conserved Sequence
DNA-Binding Proteins / genetics,  metabolism*
Enzyme Inhibitors / pharmacology
Membrane Proteins
Molecular Sequence Data
Phosphorylation
Phosphotransferases (Alcohol Group Acceptor) / antagonists & inhibitors,  genetics,  metabolism*
Point Mutation
Protein Binding
Receptor, Interferon alpha-beta
Receptors, Interferon / metabolism*
Recombinant Fusion Proteins / genetics,  metabolism
STAT3 Transcription Factor
Signal Transduction
Trans-Activators / genetics,  metabolism*
Tyrosine / metabolism
Chemical
Reg. No./Substance:
0/Acute-Phase Proteins; 0/Androstadienes; 0/DNA-Binding Proteins; 0/Enzyme Inhibitors; 0/Membrane Proteins; 0/Receptors, Interferon; 0/Recombinant Fusion Proteins; 0/STAT3 Transcription Factor; 0/Trans-Activators; 156986-95-7/Receptor, Interferon alpha-beta; 19545-26-7/wortmannin; 55520-40-6/Tyrosine; EC 2.7.1.-/Phosphotransferases (Alcohol Group Acceptor); EC 2.7.1.137/1-Phosphatidylinositol 3-Kinase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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