TRIM21 Ubiquitylates SQSTM1/p62 and Suppresses Protein Sequestration to Regulate Redox Homeostasis

TRIM21 is a RING finger domain-containing ubiquitin E3 ligase whose expression is elevated in autoimmune disease. While TRIM21 plays an important role in immune activation during pathogen infection, little is known about its inherent cellular function. Here we show that TRIM21 plays an essential rol...

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Veröffentlicht in:Molecular cell 2016-03, Vol.61 (5), p.720-733
Hauptverfasser: Pan, Ji-An, Sun, Yu, Jiang, Ya-Ping, Bott, Alex J., Jaber, Nadia, Dou, Zhixun, Yang, Bin, Chen, Juei-Suei, Catanzaro, Joseph M., Du, Chunying, Ding, Wen-Xing, Diaz-Meco, Maria T., Moscat, Jorge, Ozato, Keiko, Lin, Richard Z., Zong, Wei-Xing
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container_end_page 733
container_issue 5
container_start_page 720
container_title Molecular cell
container_volume 61
creator Pan, Ji-An
Sun, Yu
Jiang, Ya-Ping
Bott, Alex J.
Jaber, Nadia
Dou, Zhixun
Yang, Bin
Chen, Juei-Suei
Catanzaro, Joseph M.
Du, Chunying
Ding, Wen-Xing
Diaz-Meco, Maria T.
Moscat, Jorge
Ozato, Keiko
Lin, Richard Z.
Zong, Wei-Xing
description TRIM21 is a RING finger domain-containing ubiquitin E3 ligase whose expression is elevated in autoimmune disease. While TRIM21 plays an important role in immune activation during pathogen infection, little is known about its inherent cellular function. Here we show that TRIM21 plays an essential role in redox regulation by directly interacting with SQSTM1/p62 and ubiquitylating p62 at lysine 7 (K7) via K63-linkage. As p62 oligomerizes and sequesters client proteins in inclusions, the TRIM21-mediated p62 ubiquitylation abrogates p62 oligomerization and sequestration of proteins including Keap1, a negative regulator of antioxidant response. TRIM21-deficient cells display an enhanced antioxidant response and reduced cell death in response to oxidative stress. Genetic ablation of TRIM21 in mice confers protection from oxidative damages caused by arsenic-induced liver insult and pressure overload heart injury. Therefore, TRIM21 plays an essential role in p62-regulated redox homeostasis and may be a viable target for treating pathological conditions resulting from oxidative damage. [Display omitted] •SQSTM1/p62 is ubiquitylated by TRIM21 at K7 via K63-linkage•p62 K7 ubiquitylation prevents its dimerization and sequestration•TRIM21 negatively regulates Keap1 sequestration and anti-oxidative response•TRIM21 null liver and heart are protected from oxidative tissue damage Pan et al. show that TRIM21 interacts with and ubiquitylates p62 at K7 via K63-linkage. This p62 K7 ubiquitylation prevents p62 dimerization and sequestration function and negatively regulates the Keap1-Nrf2 redox pathway. TRIM21-null mice are protected from oxidative liver and heart damage.
doi_str_mv 10.1016/j.molcel.2016.02.007
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While TRIM21 plays an important role in immune activation during pathogen infection, little is known about its inherent cellular function. Here we show that TRIM21 plays an essential role in redox regulation by directly interacting with SQSTM1/p62 and ubiquitylating p62 at lysine 7 (K7) via K63-linkage. As p62 oligomerizes and sequesters client proteins in inclusions, the TRIM21-mediated p62 ubiquitylation abrogates p62 oligomerization and sequestration of proteins including Keap1, a negative regulator of antioxidant response. TRIM21-deficient cells display an enhanced antioxidant response and reduced cell death in response to oxidative stress. Genetic ablation of TRIM21 in mice confers protection from oxidative damages caused by arsenic-induced liver insult and pressure overload heart injury. Therefore, TRIM21 plays an essential role in p62-regulated redox homeostasis and may be a viable target for treating pathological conditions resulting from oxidative damage. [Display omitted] •SQSTM1/p62 is ubiquitylated by TRIM21 at K7 via K63-linkage•p62 K7 ubiquitylation prevents its dimerization and sequestration•TRIM21 negatively regulates Keap1 sequestration and anti-oxidative response•TRIM21 null liver and heart are protected from oxidative tissue damage Pan et al. show that TRIM21 interacts with and ubiquitylates p62 at K7 via K63-linkage. This p62 K7 ubiquitylation prevents p62 dimerization and sequestration function and negatively regulates the Keap1-Nrf2 redox pathway. TRIM21-null mice are protected from oxidative liver and heart damage.</description><identifier>ISSN: 1097-2765</identifier><identifier>EISSN: 1097-4164</identifier><identifier>DOI: 10.1016/j.molcel.2016.02.007</identifier><identifier>PMID: 26942676</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Adaptor Proteins, Signal Transducing - genetics ; Adaptor Proteins, Signal Transducing - metabolism ; Animals ; Arsenic Trioxide ; Arsenicals ; Cell Death ; Chemical and Drug Induced Liver Injury - enzymology ; Chemical and Drug Induced Liver Injury - genetics ; Chemical and Drug Induced Liver Injury - pathology ; Chemical and Drug Induced Liver Injury - prevention &amp; control ; Cytoskeletal Proteins - metabolism ; Disease Models, Animal ; Heart Failure - enzymology ; Heart Failure - genetics ; Heart Failure - pathology ; Heart Failure - prevention &amp; control ; Heat-Shock Proteins - genetics ; Heat-Shock Proteins - metabolism ; HEK293 Cells ; Homeostasis ; Humans ; Intracellular Signaling Peptides and Proteins - metabolism ; Kelch-Like ECH-Associated Protein 1 ; Liver - enzymology ; Liver - pathology ; Lysine ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Myocardium - enzymology ; Myocardium - pathology ; Oxidation-Reduction ; Oxidative Stress ; Oxides ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Ribonucleoproteins - deficiency ; Ribonucleoproteins - genetics ; Ribonucleoproteins - metabolism ; RNA Interference ; Sequestosome-1 Protein ; Signal Transduction ; Time Factors ; Transfection ; Ubiquitination</subject><ispartof>Molecular cell, 2016-03, Vol.61 (5), p.720-733</ispartof><rights>2016 Elsevier Inc.</rights><rights>Copyright © 2016 Elsevier Inc. 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While TRIM21 plays an important role in immune activation during pathogen infection, little is known about its inherent cellular function. Here we show that TRIM21 plays an essential role in redox regulation by directly interacting with SQSTM1/p62 and ubiquitylating p62 at lysine 7 (K7) via K63-linkage. As p62 oligomerizes and sequesters client proteins in inclusions, the TRIM21-mediated p62 ubiquitylation abrogates p62 oligomerization and sequestration of proteins including Keap1, a negative regulator of antioxidant response. TRIM21-deficient cells display an enhanced antioxidant response and reduced cell death in response to oxidative stress. Genetic ablation of TRIM21 in mice confers protection from oxidative damages caused by arsenic-induced liver insult and pressure overload heart injury. Therefore, TRIM21 plays an essential role in p62-regulated redox homeostasis and may be a viable target for treating pathological conditions resulting from oxidative damage. [Display omitted] •SQSTM1/p62 is ubiquitylated by TRIM21 at K7 via K63-linkage•p62 K7 ubiquitylation prevents its dimerization and sequestration•TRIM21 negatively regulates Keap1 sequestration and anti-oxidative response•TRIM21 null liver and heart are protected from oxidative tissue damage Pan et al. show that TRIM21 interacts with and ubiquitylates p62 at K7 via K63-linkage. This p62 K7 ubiquitylation prevents p62 dimerization and sequestration function and negatively regulates the Keap1-Nrf2 redox pathway. TRIM21-null mice are protected from oxidative liver and heart damage.</description><subject>Adaptor Proteins, Signal Transducing - genetics</subject><subject>Adaptor Proteins, Signal Transducing - metabolism</subject><subject>Animals</subject><subject>Arsenic Trioxide</subject><subject>Arsenicals</subject><subject>Cell Death</subject><subject>Chemical and Drug Induced Liver Injury - enzymology</subject><subject>Chemical and Drug Induced Liver Injury - genetics</subject><subject>Chemical and Drug Induced Liver Injury - pathology</subject><subject>Chemical and Drug Induced Liver Injury - prevention &amp; control</subject><subject>Cytoskeletal Proteins - metabolism</subject><subject>Disease Models, Animal</subject><subject>Heart Failure - enzymology</subject><subject>Heart Failure - genetics</subject><subject>Heart Failure - pathology</subject><subject>Heart Failure - prevention &amp; control</subject><subject>Heat-Shock Proteins - genetics</subject><subject>Heat-Shock Proteins - metabolism</subject><subject>HEK293 Cells</subject><subject>Homeostasis</subject><subject>Humans</subject><subject>Intracellular Signaling Peptides and Proteins - metabolism</subject><subject>Kelch-Like ECH-Associated Protein 1</subject><subject>Liver - enzymology</subject><subject>Liver - pathology</subject><subject>Lysine</subject><subject>Mice</subject><subject>Mice, Inbred C57BL</subject><subject>Mice, Knockout</subject><subject>Myocardium - enzymology</subject><subject>Myocardium - pathology</subject><subject>Oxidation-Reduction</subject><subject>Oxidative Stress</subject><subject>Oxides</subject><subject>Protein Binding</subject><subject>Protein Interaction Domains and Motifs</subject><subject>Protein Multimerization</subject><subject>Ribonucleoproteins - deficiency</subject><subject>Ribonucleoproteins - genetics</subject><subject>Ribonucleoproteins - metabolism</subject><subject>RNA Interference</subject><subject>Sequestosome-1 Protein</subject><subject>Signal Transduction</subject><subject>Time Factors</subject><subject>Transfection</subject><subject>Ubiquitination</subject><issn>1097-2765</issn><issn>1097-4164</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE1OHDEQhS2UiL9wgyjqC0zjcvtnvIkUoRCQQEmYYW257RriUU-7sd0o3CZnycno0QBJNllVlUrv1auPkPdAa6AgT9f1JnYOu5pNU01ZTanaI4dAtZpxkPzNc8-UFAfkKOc1pcDFXO-TAyY1Z1LJQ-KWN5fXDH7_um3D_RjKY2cL5mrxfbG8htNBssr2vlqMw5Aw52nzLcWCoa8WeD9iLsmWEPuqxOoG78ateGp8_FldxA3GXGwO-R15u7JdxpPnekxuzz8vzy5mV1-_XJ59upo5Lpsy844Jr_hKKdVwLVqPrnVMNwyEcKKVmtK5hFWD4FG1XCsQgFaDtkLJxrrmmHzc-Q5ju0HvsJ_idWZIYWPTo4k2mH83ffhh7uKD4UppmMNkwHcGLsWcE65etUDNFrpZmx10s4VuKDMT9En24e-7r6IXyn-C4fT9Q8BksgvYO_QhoSvGx_D_C08pZpd_</recordid><startdate>20160303</startdate><enddate>20160303</enddate><creator>Pan, Ji-An</creator><creator>Sun, Yu</creator><creator>Jiang, Ya-Ping</creator><creator>Bott, Alex J.</creator><creator>Jaber, Nadia</creator><creator>Dou, Zhixun</creator><creator>Yang, Bin</creator><creator>Chen, Juei-Suei</creator><creator>Catanzaro, Joseph M.</creator><creator>Du, Chunying</creator><creator>Ding, Wen-Xing</creator><creator>Diaz-Meco, Maria T.</creator><creator>Moscat, Jorge</creator><creator>Ozato, Keiko</creator><creator>Lin, Richard Z.</creator><creator>Zong, Wei-Xing</creator><general>Elsevier Inc</general><scope>6I.</scope><scope>AAFTH</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>5PM</scope></search><sort><creationdate>20160303</creationdate><title>TRIM21 Ubiquitylates SQSTM1/p62 and Suppresses Protein Sequestration to Regulate Redox Homeostasis</title><author>Pan, Ji-An ; Sun, Yu ; Jiang, Ya-Ping ; Bott, Alex J. ; Jaber, Nadia ; Dou, Zhixun ; Yang, Bin ; Chen, Juei-Suei ; Catanzaro, Joseph M. ; Du, Chunying ; Ding, Wen-Xing ; Diaz-Meco, Maria T. ; Moscat, Jorge ; Ozato, Keiko ; Lin, Richard Z. ; Zong, Wei-Xing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c463t-dc25d74f7773495bdecbc2932155c5b6900861f3e1de7b497151ea919a5763ac3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Adaptor Proteins, Signal Transducing - genetics</topic><topic>Adaptor Proteins, Signal Transducing - metabolism</topic><topic>Animals</topic><topic>Arsenic Trioxide</topic><topic>Arsenicals</topic><topic>Cell Death</topic><topic>Chemical and Drug Induced Liver Injury - enzymology</topic><topic>Chemical and Drug Induced Liver Injury - genetics</topic><topic>Chemical and Drug Induced Liver Injury - pathology</topic><topic>Chemical and Drug Induced Liver Injury - prevention &amp; 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While TRIM21 plays an important role in immune activation during pathogen infection, little is known about its inherent cellular function. Here we show that TRIM21 plays an essential role in redox regulation by directly interacting with SQSTM1/p62 and ubiquitylating p62 at lysine 7 (K7) via K63-linkage. As p62 oligomerizes and sequesters client proteins in inclusions, the TRIM21-mediated p62 ubiquitylation abrogates p62 oligomerization and sequestration of proteins including Keap1, a negative regulator of antioxidant response. TRIM21-deficient cells display an enhanced antioxidant response and reduced cell death in response to oxidative stress. Genetic ablation of TRIM21 in mice confers protection from oxidative damages caused by arsenic-induced liver insult and pressure overload heart injury. Therefore, TRIM21 plays an essential role in p62-regulated redox homeostasis and may be a viable target for treating pathological conditions resulting from oxidative damage. [Display omitted] •SQSTM1/p62 is ubiquitylated by TRIM21 at K7 via K63-linkage•p62 K7 ubiquitylation prevents its dimerization and sequestration•TRIM21 negatively regulates Keap1 sequestration and anti-oxidative response•TRIM21 null liver and heart are protected from oxidative tissue damage Pan et al. show that TRIM21 interacts with and ubiquitylates p62 at K7 via K63-linkage. This p62 K7 ubiquitylation prevents p62 dimerization and sequestration function and negatively regulates the Keap1-Nrf2 redox pathway. TRIM21-null mice are protected from oxidative liver and heart damage.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>26942676</pmid><doi>10.1016/j.molcel.2016.02.007</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record>
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subjects Adaptor Proteins, Signal Transducing - genetics
Adaptor Proteins, Signal Transducing - metabolism
Animals
Arsenic Trioxide
Arsenicals
Cell Death
Chemical and Drug Induced Liver Injury - enzymology
Chemical and Drug Induced Liver Injury - genetics
Chemical and Drug Induced Liver Injury - pathology
Chemical and Drug Induced Liver Injury - prevention & control
Cytoskeletal Proteins - metabolism
Disease Models, Animal
Heart Failure - enzymology
Heart Failure - genetics
Heart Failure - pathology
Heart Failure - prevention & control
Heat-Shock Proteins - genetics
Heat-Shock Proteins - metabolism
HEK293 Cells
Homeostasis
Humans
Intracellular Signaling Peptides and Proteins - metabolism
Kelch-Like ECH-Associated Protein 1
Liver - enzymology
Liver - pathology
Lysine
Mice
Mice, Inbred C57BL
Mice, Knockout
Myocardium - enzymology
Myocardium - pathology
Oxidation-Reduction
Oxidative Stress
Oxides
Protein Binding
Protein Interaction Domains and Motifs
Protein Multimerization
Ribonucleoproteins - deficiency
Ribonucleoproteins - genetics
Ribonucleoproteins - metabolism
RNA Interference
Sequestosome-1 Protein
Signal Transduction
Time Factors
Transfection
Ubiquitination
title TRIM21 Ubiquitylates SQSTM1/p62 and Suppresses Protein Sequestration to Regulate Redox Homeostasis
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