NDLI: TRUSS, a Novel Tumor Necrosis Factor Receptor 1 Scaffolding Protein That Mediates Activation of the Transcription Factor NF-κB

Content Provider	PubMed Central
Author	Soond, Surinder M. Terry, Jennifer L. Colbert, Jeff D. Riches, David W. H.
Copyright Year	2003
Abstract	We describe the cloning and characterization of tumor necrosis factor receptor (TNF-R)-associated ubiquitous scaffolding and signaling protein (TRUSS), a novel TNF-R1-interacting protein of 90.7 kDa. TRUSS mRNA was ubiquitously expressed in mouse tissues but was enriched in heart, liver, and testis. Coimmunoprecipitation experiments showed that TRUSS was constitutively associated with unligated TNF-R1 and that the complex was relatively insensitive to stimulation with TNF-α. Deletion mutagenesis of TNF-R1 indicated that TRUSS interacts with both the membrane-proximal region and the death domain of TNF-R1. In addition, the N-terminal region of TRUSS (residues 1 to 440) contains sequences that permit association with the cytoplasmic domain of TNF-R1. Transient overexpression of TRUSS activated NF-κB and increased NF-κB activation in response to ligation of TNF-R1. In contrast, a COOH-terminal-deletion mutant of TRUSS (TRUSS1-723) was found to inhibit NF-κB activation by TNF-α. Coprecipitation and coimmunoprecipitation assays revealed that TRUSS can interact with TRADD, TRAF2, and components of the IKK complex. These findings suggest that TRUSS may serve as a scaffolding protein that interacts with TNF-R1 signaling proteins and may link TNF-R1 to the activation of IKK.
Related Links	http://dx.doi.org/10.1128/mcb.23.22.8334-8344.2003
Ending Page	8344
Page Count	11
Starting Page	8334
File Format	PDF
ISSN	02707306
e-ISSN	10985549
Journal	Molecular and Cellular Biology
Issue Number	22
Volume Number	23
Language	English
Publisher	American Society for Microbiology
Publisher Date	2003-11-15
Access Restriction	Open
Rights Holder	American Society for Microbiology
Subject Keyword	Cell Biology Molecular Biology Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Cell Biology Molecular Biology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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