PMID- 11279196 OWN - NLM STAT- MEDLINE DCOM- 20010726 LR - 20210209 IS - 0021-9258 (Print) IS - 0021-9258 (Linking) VI - 276 IP - 22 DP - 2001 Jun 1 TI - A novel p75TNF receptor isoform mediating NFkappa B activation. PG - 19390-5 AB - We report the identification of a novel p75TNF receptor isoform termed icp75TNFR, which is generated by the use of an alternative transcriptional start site within the p75TNFR gene and characterized by regulated intracellular expression. The icp75TNFR protein has an apparent molecular mass of approximately 50 kDa and is recognized by antibodies generated against the transmembrane form of p75TNFR. The icp75TNFR binds the tumor necrosis factor(TNF) and mediates intracellular signaling. Overexpression of the icp75TNFR cDNA results in TNF-induced activation of NFkappaB in a TNF receptor-associated factor 2 (TRAF2)-dependent manner. Thus, our results provide an example for intracellular cytokine receptor activation. FAU - Seitz, C AU - Seitz C AD - Department of Pathology/Tumor Immunology, University of Regensburg, D-93042 Regensburg, Germany. FAU - Muller, P AU - Muller P FAU - Krieg, R C AU - Krieg RC FAU - Mannel, D N AU - Mannel DN FAU - Hehlgans, T AU - Hehlgans T LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20010301 PL - United States TA - J Biol Chem JT - The Journal of biological chemistry JID - 2985121R RN - 0 (Antigens, CD) RN - 0 (DNA, Complementary) RN - 0 (NF-kappa B) RN - 0 (Protein Isoforms) RN - 0 (Proteins) RN - 0 (RNA, Messenger) RN - 0 (Receptors, Tumor Necrosis Factor) RN - 0 (Receptors, Tumor Necrosis Factor, Type II) RN - 0 (Recombinant Fusion Proteins) RN - 0 (TNF Receptor-Associated Factor 2) SB - IM MH - Alternative Splicing MH - Amino Acid Sequence MH - Animals MH - Antigens, CD/*chemistry MH - Base Sequence MH - Blotting, Western MH - Cell Line MH - DNA, Complementary/metabolism MH - Enzyme Activation MH - Exons MH - Genes, Reporter MH - HeLa Cells MH - Humans MH - Mice MH - Microscopy, Fluorescence MH - Models, Genetic MH - Molecular Sequence Data MH - NF-kappa B/*metabolism MH - Open Reading Frames MH - Protein Binding MH - *Protein Isoforms MH - Protein Structure, Tertiary MH - Proteins/metabolism MH - RNA, Messenger/metabolism MH - Rats MH - Receptors, Tumor Necrosis Factor/*chemistry MH - Receptors, Tumor Necrosis Factor, Type II MH - Recombinant Fusion Proteins/metabolism MH - Reverse Transcriptase Polymerase Chain Reaction MH - Sequence Homology, Amino Acid MH - Signal Transduction MH - TNF Receptor-Associated Factor 2 MH - Transcription, Genetic MH - Transfection MH - Tumor Cells, Cultured MH - U937 Cells EDAT- 2001/03/30 10:00 MHDA- 2001/07/28 10:01 CRDT- 2001/03/30 10:00 PHST- 2001/03/30 10:00 [pubmed] PHST- 2001/07/28 10:01 [medline] PHST- 2001/03/30 10:00 [entrez] AID - S0021-9258(19)67081-X [pii] AID - 10.1074/jbc.M101336200 [doi] PST - ppublish SO - J Biol Chem. 2001 Jun 1;276(22):19390-5. doi: 10.1074/jbc.M101336200. Epub 2001 Mar 1.