c-Jun N-terminal kinase regulates the nucleoplasmic translocation and stability of nucleolar GLTSCR2 protein
Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pa...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Lee, Sun [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016transfer abstract |
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| Schlagwörter: |
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| Umfang: |
6 |
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| Übergeordnetes Werk: |
Enthalten in: Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag - Zhang, Zhikun ELSEVIER, 2019, BBRC, Orlando, Fla |
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| Übergeordnetes Werk: |
volume:472 ; year:2016 ; number:1 ; day:25 ; month:03 ; pages:95-100 ; extent:6 |
| Links: |
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| DOI / URN: |
10.1016/j.bbrc.2016.02.070 |
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ELV019781687 |
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| 520 | |a Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. | ||
| 520 | |a Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. | ||
| 650 | 7 | |a Protein degradation |2 Elsevier | |
| 650 | 7 | |a JNK |2 Elsevier | |
| 650 | 7 | |a GLTSCR2 |2 Elsevier | |
| 650 | 7 | |a Subnuclear localization |2 Elsevier | |
| 700 | 1 | |a Cho, Young-Eun |4 oth | |
| 700 | 1 | |a Kim, Yong-Jun |4 oth | |
| 700 | 1 | |a Park, Jae-Hoon |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Academic Press |a Zhang, Zhikun ELSEVIER |t Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag |d 2019 |d BBRC |g Orlando, Fla |w (DE-627)ELV002811154 |
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10.1016/j.bbrc.2016.02.070 doi GBVA2016020000026.pica (DE-627)ELV019781687 (ELSEVIER)S0006-291X(16)30259-5 DE-627 ger DE-627 rakwb eng 570 570 DE-600 670 VZ 51.60 bkl 58.45 bkl Lee, Sun verfasserin aut c-Jun N-terminal kinase regulates the nucleoplasmic translocation and stability of nucleolar GLTSCR2 protein 2016transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. Protein degradation Elsevier JNK Elsevier GLTSCR2 Elsevier Subnuclear localization Elsevier Cho, Young-Eun oth Kim, Yong-Jun oth Park, Jae-Hoon oth Enthalten in Academic Press Zhang, Zhikun ELSEVIER Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag 2019 BBRC Orlando, Fla (DE-627)ELV002811154 volume:472 year:2016 number:1 day:25 month:03 pages:95-100 extent:6 https://doi.org/10.1016/j.bbrc.2016.02.070 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 472 2016 1 25 0325 95-100 6 045F 570 |
| spelling |
10.1016/j.bbrc.2016.02.070 doi GBVA2016020000026.pica (DE-627)ELV019781687 (ELSEVIER)S0006-291X(16)30259-5 DE-627 ger DE-627 rakwb eng 570 570 DE-600 670 VZ 51.60 bkl 58.45 bkl Lee, Sun verfasserin aut c-Jun N-terminal kinase regulates the nucleoplasmic translocation and stability of nucleolar GLTSCR2 protein 2016transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. Protein degradation Elsevier JNK Elsevier GLTSCR2 Elsevier Subnuclear localization Elsevier Cho, Young-Eun oth Kim, Yong-Jun oth Park, Jae-Hoon oth Enthalten in Academic Press Zhang, Zhikun ELSEVIER Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag 2019 BBRC Orlando, Fla (DE-627)ELV002811154 volume:472 year:2016 number:1 day:25 month:03 pages:95-100 extent:6 https://doi.org/10.1016/j.bbrc.2016.02.070 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 472 2016 1 25 0325 95-100 6 045F 570 |
| allfields_unstemmed |
10.1016/j.bbrc.2016.02.070 doi GBVA2016020000026.pica (DE-627)ELV019781687 (ELSEVIER)S0006-291X(16)30259-5 DE-627 ger DE-627 rakwb eng 570 570 DE-600 670 VZ 51.60 bkl 58.45 bkl Lee, Sun verfasserin aut c-Jun N-terminal kinase regulates the nucleoplasmic translocation and stability of nucleolar GLTSCR2 protein 2016transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. Protein degradation Elsevier JNK Elsevier GLTSCR2 Elsevier Subnuclear localization Elsevier Cho, Young-Eun oth Kim, Yong-Jun oth Park, Jae-Hoon oth Enthalten in Academic Press Zhang, Zhikun ELSEVIER Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag 2019 BBRC Orlando, Fla (DE-627)ELV002811154 volume:472 year:2016 number:1 day:25 month:03 pages:95-100 extent:6 https://doi.org/10.1016/j.bbrc.2016.02.070 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 472 2016 1 25 0325 95-100 6 045F 570 |
| allfieldsGer |
10.1016/j.bbrc.2016.02.070 doi GBVA2016020000026.pica (DE-627)ELV019781687 (ELSEVIER)S0006-291X(16)30259-5 DE-627 ger DE-627 rakwb eng 570 570 DE-600 670 VZ 51.60 bkl 58.45 bkl Lee, Sun verfasserin aut c-Jun N-terminal kinase regulates the nucleoplasmic translocation and stability of nucleolar GLTSCR2 protein 2016transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. Protein degradation Elsevier JNK Elsevier GLTSCR2 Elsevier Subnuclear localization Elsevier Cho, Young-Eun oth Kim, Yong-Jun oth Park, Jae-Hoon oth Enthalten in Academic Press Zhang, Zhikun ELSEVIER Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag 2019 BBRC Orlando, Fla (DE-627)ELV002811154 volume:472 year:2016 number:1 day:25 month:03 pages:95-100 extent:6 https://doi.org/10.1016/j.bbrc.2016.02.070 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 472 2016 1 25 0325 95-100 6 045F 570 |
| allfieldsSound |
10.1016/j.bbrc.2016.02.070 doi GBVA2016020000026.pica (DE-627)ELV019781687 (ELSEVIER)S0006-291X(16)30259-5 DE-627 ger DE-627 rakwb eng 570 570 DE-600 670 VZ 51.60 bkl 58.45 bkl Lee, Sun verfasserin aut c-Jun N-terminal kinase regulates the nucleoplasmic translocation and stability of nucleolar GLTSCR2 protein 2016transfer abstract 6 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. Protein degradation Elsevier JNK Elsevier GLTSCR2 Elsevier Subnuclear localization Elsevier Cho, Young-Eun oth Kim, Yong-Jun oth Park, Jae-Hoon oth Enthalten in Academic Press Zhang, Zhikun ELSEVIER Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag 2019 BBRC Orlando, Fla (DE-627)ELV002811154 volume:472 year:2016 number:1 day:25 month:03 pages:95-100 extent:6 https://doi.org/10.1016/j.bbrc.2016.02.070 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U 51.60 Keramische Werkstoffe Hartstoffe Werkstoffkunde VZ 58.45 Gesteinshüttenkunde VZ AR 472 2016 1 25 0325 95-100 6 045F 570 |
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Enthalten in Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag Orlando, Fla volume:472 year:2016 number:1 day:25 month:03 pages:95-100 extent:6 |
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Enthalten in Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag Orlando, Fla volume:472 year:2016 number:1 day:25 month:03 pages:95-100 extent:6 |
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Preparation and characterization of glass-ceramics via co-sintering of coal fly ash and oil shale ash-derived amorphous slag |
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c-jun n-terminal kinase regulates the nucleoplasmic translocation and stability of nucleolar gltscr2 protein |
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c-Jun N-terminal kinase regulates the nucleoplasmic translocation and stability of nucleolar GLTSCR2 protein |
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Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. |
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Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. |
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Glioblastoma tumor suppressive candidate region gene 2 (GLTSCR2) is a nucleolar protein that participates in critical cellular processes including the DNA damage response, cell cycle regulation, and inhibition of MYC-induced transforming activity. Irrespective of these important physiological and pathological functions, the mechanisms that regulate GLTSCR2 expression, and its nucleolar-nucleoplasmic translocation, are largely unknown. HeLa cells were treated with various protein kinase inhibitors and subjected to immunocytochemical or immunoblot assays for GLTSCR2. Protein stability was determined by the cycloheximide chase or ubiquitination assays. Oligomer status was analyzed by immunoprecipitation. Inhibiting c-jun N-terminal kinase (JNK) phosphorylation activity on c-jun by SP600125, or adding a c-jun peptide, induced the nucleoplasmic translocation of GLTSCR2 from the nucleolus and enhanced protein degradation through the proteasome-polyubiquitination pathway. These effects may have resulted from reducing the binding affinity between GLTSCR2 monomers. These data indicate that JNK, and its phosphorylation target c-jun, are prerequisites for the nucleolar distribution of GLTSCR2 and maintenance of its protein stability. Overall, GLTSCR2 is crucial for normal cellular function as well as for preventing the development or progression of cancer. The JNK-c-jun axis is indispensible for regulating the activities of GLTSCR2. |
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