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  • Mice  (9)
  • Cells, Cultured  (3)
  • Protein Binding  (3)
  • Proteomics  (2)
  • Mass Spectrometry
  • Proteasome Endopeptidase Complex/*metabolism
  • 2010-2014  (11)
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  • 1
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    Network organization of the human autophagy system (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-06-22
    Description: Autophagy, the process by which proteins and organelles are sequestered in autophagosomal vesicles and delivered to the lysosome/vacuole for degradation, provides a primary route for turnover of stable and defective cellular proteins. Defects in this system are linked with numerous human diseases. Although conserved protein kinase, lipid kinase and ubiquitin-like protein conjugation subnetworks controlling autophagosome formation and cargo recruitment have been defined, our understanding of the global organization of this system is limited. Here we report a proteomic analysis of the autophagy interaction network in human cells under conditions of ongoing (basal) autophagy, revealing a network of 751 interactions among 409 candidate interacting proteins with extensive connectivity among subnetworks. Many new autophagy interaction network components have roles in vesicle trafficking, protein or lipid phosphorylation and protein ubiquitination, and affect autophagosome number or flux when depleted by RNA interference. The six ATG8 orthologues in humans (MAP1LC3/GABARAP proteins) interact with a cohort of 67 proteins, with extensive binding partner overlap between family members, and frequent involvement of a conserved surface on ATG8 proteins known to interact with LC3-interacting regions in partner proteins. These studies provide a global view of the mammalian autophagy interaction landscape and a resource for mechanistic analysis of this critical protein homeostasis pathway.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2901998/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2901998/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Behrends, Christian -- Sowa, Mathew E -- Gygi, Steven P -- Harper, J Wade -- R01 AG011085/AG/NIA NIH HHS/ -- R01 AG011085-18/AG/NIA NIH HHS/ -- R01 GM054137/GM/NIGMS NIH HHS/ -- R01 GM054137-14/GM/NIGMS NIH HHS/ -- R01 GM054137-14S1/GM/NIGMS NIH HHS/ -- R01 GM054137-15/GM/NIGMS NIH HHS/ -- R01 GM070565/GM/NIGMS NIH HHS/ -- R01 GM070565-05S1/GM/NIGMS NIH HHS/ -- R01 GM095567/GM/NIGMS NIH HHS/ -- England -- Nature. 2010 Jul 1;466(7302):68-76. doi: 10.1038/nature09204. Epub 2010 Jun 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Harvard Medical School, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20562859" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/genetics/metabolism ; Autophagy/genetics/*physiology ; Homeostasis ; Humans ; Microfilament Proteins/genetics/metabolism ; Phagosomes ; Phosphorylation ; Protein Binding ; *Protein Interaction Mapping ; Proteomics ; RNA Interference ; Reproducibility of Results ; Ubiquitination
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Enhancement of proteasome activity by a small-molecule inhibitor of USP14 (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-09-11
    Description: Proteasomes, the primary mediators of ubiquitin-protein conjugate degradation, are regulated through complex and poorly understood mechanisms. Here we show that USP14, a proteasome-associated deubiquitinating enzyme, can inhibit the degradation of ubiquitin-protein conjugates both in vitro and in cells. A catalytically inactive variant of USP14 has reduced inhibitory activity, indicating that inhibition is mediated by trimming of the ubiquitin chain on the substrate. A high-throughput screen identified a selective small-molecule inhibitor of the deubiquitinating activity of human USP14. Treatment of cultured cells with this compound enhanced degradation of several proteasome substrates that have been implicated in neurodegenerative disease. USP14 inhibition accelerated the degradation of oxidized proteins and enhanced resistance to oxidative stress. Enhancement of proteasome activity through inhibition of USP14 may offer a strategy to reduce the levels of aberrant proteins in cells under proteotoxic stress.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2939003/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2939003/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lee, Byung-Hoon -- Lee, Min Jae -- Park, Soyeon -- Oh, Dong-Chan -- Elsasser, Suzanne -- Chen, Ping-Chung -- Gartner, Carlos -- Dimova, Nevena -- Hanna, John -- Gygi, Steven P -- Wilson, Scott M -- King, Randall W -- Finley, Daniel -- DK082906/DK/NIDDK NIH HHS/ -- GM65592/GM/NIGMS NIH HHS/ -- GM66492/GM/NIGMS NIH HHS/ -- NS047533/NS/NINDS NIH HHS/ -- P30 NS057098/NS/NINDS NIH HHS/ -- P30 NS057098-049002/NS/NINDS NIH HHS/ -- R01 GM066492/GM/NIGMS NIH HHS/ -- R01 GM067945/GM/NIGMS NIH HHS/ -- R01 NS047533/NS/NINDS NIH HHS/ -- R01 NS047533-06A2/NS/NINDS NIH HHS/ -- England -- Nature. 2010 Sep 9;467(7312):179-84. doi: 10.1038/nature09299.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20829789" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cells, Cultured ; Humans ; Mice ; Proteasome Endopeptidase Complex/*metabolism ; Proteins/*metabolism ; Ubiquitin Thiolesterase/*antagonists & inhibitors ; Ubiquitination
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 3
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    Quantitative proteomics identifies NCOA4 as the cargo receptor mediating ferritinophagy (2014)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2014-04-04
    Description: Autophagy, the process by which proteins and organelles are sequestered in double-membrane structures called autophagosomes and delivered to lysosomes for degradation, is critical in diseases such as cancer and neurodegeneration. Much of our understanding of this process has emerged from analysis of bulk cytoplasmic autophagy, but our understanding of how specific cargo, including organelles, proteins or intracellular pathogens, are targeted for selective autophagy is limited. Here we use quantitative proteomics to identify a cohort of novel and known autophagosome-enriched proteins in human cells, including cargo receptors. Like known cargo receptors, nuclear receptor coactivator 4 (NCOA4) was highly enriched in autophagosomes, and associated with ATG8 proteins that recruit cargo-receptor complexes into autophagosomes. Unbiased identification of NCOA4-associated proteins revealed ferritin heavy and light chains, components of an iron-filled cage structure that protects cells from reactive iron species but is degraded via autophagy to release iron through an unknown mechanism. We found that delivery of ferritin to lysosomes required NCOA4, and an inability of NCOA4-deficient cells to degrade ferritin led to decreased bioavailable intracellular iron. This work identifies NCOA4 as a selective cargo receptor for autophagic turnover of ferritin (ferritinophagy), which is critical for iron homeostasis, and provides a resource for further dissection of autophagosomal cargo-receptor connectivity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4180099/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4180099/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mancias, Joseph D -- Wang, Xiaoxu -- Gygi, Steven P -- Harper, J Wade -- Kimmelman, Alec C -- GM070565/GM/NIGMS NIH HHS/ -- GM095567/GM/NIGMS NIH HHS/ -- P50 CA127003/CA/NCI NIH HHS/ -- R01 CA157490/CA/NCI NIH HHS/ -- R01 GM070565/GM/NIGMS NIH HHS/ -- R01 GM095567/GM/NIGMS NIH HHS/ -- R01CA157490/CA/NCI NIH HHS/ -- England -- Nature. 2014 May 1;509(7498):105-9. doi: 10.1038/nature13148. Epub 2014 Mar 30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Division of Genomic Stability and DNA Repair, Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA [2] Department of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115, USA [3] Harvard Radiation Oncology Program, Boston, Massachusetts 02115, USA [4] Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA. ; Division of Genomic Stability and DNA Repair, Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02215, USA. ; Department of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24695223" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/metabolism ; *Autophagy ; Biological Availability ; Ferritins/chemistry/*metabolism ; Homeostasis ; Humans ; Iron/metabolism ; Lysosomes/metabolism ; Microfilament Proteins/metabolism ; Nuclear Receptor Coactivators/deficiency/genetics/*metabolism ; Phagosomes/*metabolism ; Protein Binding ; Protein Transport ; *Proteomics ; Substrate Specificity
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
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    Phosphoproteomic analysis identifies Grb10 as an mTORC1 substrate that negatively regulates insulin signaling (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-06-11
    Description: The evolutionarily conserved serine-threonine kinase mammalian target of rapamycin (mTOR) plays a critical role in regulating many pathophysiological processes. Functional characterization of the mTOR signaling pathways, however, has been hampered by the paucity of known substrates. We used large-scale quantitative phosphoproteomics experiments to define the signaling networks downstream of mTORC1 and mTORC2. Characterization of one mTORC1 substrate, the growth factor receptor-bound protein 10 (Grb10), showed that mTORC1-mediated phosphorylation stabilized Grb10, leading to feedback inhibition of the phosphatidylinositol 3-kinase (PI3K) and extracellular signal-regulated, mitogen-activated protein kinase (ERK-MAPK) pathways. Grb10 expression is frequently down-regulated in various cancers, and loss of Grb10 and loss of the well-established tumor suppressor phosphatase PTEN appear to be mutually exclusive events, suggesting that Grb10 might be a tumor suppressor regulated by mTORC1.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3195509/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3195509/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, Yonghao -- Yoon, Sang-Oh -- Poulogiannis, George -- Yang, Qian -- Ma, Xiaoju Max -- Villen, Judit -- Kubica, Neil -- Hoffman, Gregory R -- Cantley, Lewis C -- Gygi, Steven P -- Blenis, John -- CA46595/CA/NCI NIH HHS/ -- GM051405/GM/NIGMS NIH HHS/ -- HG3456/HG/NHGRI NIH HHS/ -- R00 CA140789/CA/NCI NIH HHS/ -- R00 CA140789-04/CA/NCI NIH HHS/ -- R00CA140789/CA/NCI NIH HHS/ -- R01 GM041890/GM/NIGMS NIH HHS/ -- R01 GM051405/GM/NIGMS NIH HHS/ -- R01 GM051405-14/GM/NIGMS NIH HHS/ -- R01 GM056203/GM/NIGMS NIH HHS/ -- R01 HG003456/HG/NHGRI NIH HHS/ -- R01 HG003456-07/HG/NHGRI NIH HHS/ -- R37 CA046595/CA/NCI NIH HHS/ -- R37 CA046595-22/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2011 Jun 10;332(6035):1322-6. doi: 10.1126/science.1199484.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21659605" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Antibiotics, Antineoplastic/pharmacology ; Cell Line ; GRB10 Adaptor Protein/*metabolism ; Humans ; Insulin/*metabolism ; Mice ; Molecular Sequence Data ; Multiprotein Complexes ; Phosphatidylinositol 3-Kinases/metabolism ; Phosphoproteins/metabolism ; Phosphorylation/drug effects ; Proteins/*metabolism ; Proteome/metabolism ; *Signal Transduction/drug effects ; Sirolimus/pharmacology ; TOR Serine-Threonine Kinases
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    SCF(FBW7) regulates cellular apoptosis by targeting MCL1 for ubiquitylation and destruction (2011)
    Nature Publishing Group (NPG)
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    Publication Date: 2011-03-04
    Description: The effective use of targeted therapy is highly dependent on the identification of responder patient populations. Loss of FBW7, which encodes a tumour-suppressor protein, is frequently found in various types of human cancer, including breast cancer, colon cancer and T-cell acute lymphoblastic leukaemia (T-ALL). In line with these genomic data, engineered deletion of Fbw7 in mouse T cells results in T-ALL, validating FBW7 as a T-ALL tumour suppressor. Determining the precise molecular mechanisms by which FBW7 exerts antitumour activity is an area of intensive investigation. These mechanisms are thought to relate in part to FBW7-mediated destruction of key proteins relevant to cancer, including Jun, Myc, cyclin E and notch 1 (ref. 9), all of which have oncoprotein activity and are overexpressed in various human cancers, including leukaemia. In addition to accelerating cell growth, overexpression of Jun, Myc or notch 1 can also induce programmed cell death. Thus, considerable uncertainty surrounds how FBW7-deficient cells evade cell death in the setting of upregulated Jun, Myc and/or notch 1. Here we show that the E3 ubiquitin ligase SCF(FBW7) (a SKP1-cullin-1-F-box complex that contains FBW7 as the F-box protein) governs cellular apoptosis by targeting MCL1, a pro-survival BCL2 family member, for ubiquitylation and destruction in a manner that depends on phosphorylation by glycogen synthase kinase 3. Human T-ALL cell lines showed a close relationship between FBW7 loss and MCL1 overexpression. Correspondingly, T-ALL cell lines with defective FBW7 are particularly sensitive to the multi-kinase inhibitor sorafenib but resistant to the BCL2 antagonist ABT-737. On the genetic level, FBW7 reconstitution or MCL1 depletion restores sensitivity to ABT-737, establishing MCL1 as a therapeutically relevant bypass survival mechanism that enables FBW7-deficient cells to evade apoptosis. Therefore, our work provides insight into the molecular mechanism of direct tumour suppression by FBW7 and has implications for the targeted treatment of patients with FBW7-deficient T-ALL.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076007/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076007/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Inuzuka, Hiroyuki -- Shaik, Shavali -- Onoyama, Ichiro -- Gao, Daming -- Tseng, Alan -- Maser, Richard S -- Zhai, Bo -- Wan, Lixin -- Gutierrez, Alejandro -- Lau, Alan W -- Xiao, Yonghong -- Christie, Amanda L -- Aster, Jon -- Settleman, Jeffrey -- Gygi, Steven P -- Kung, Andrew L -- Look, Thomas -- Nakayama, Keiichi I -- DePinho, Ronald A -- Wei, Wenyi -- GM089763/GM/NIGMS NIH HHS/ -- R01 GM089763/GM/NIGMS NIH HHS/ -- R01 GM089763-01/GM/NIGMS NIH HHS/ -- R01 GM089763-02/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Mar 3;471(7336):104-9. doi: 10.1038/nature09732.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, Massachusetts 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21368833" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Apoptosis/drug effects ; Benzenesulfonates/pharmacology ; Biphenyl Compounds/pharmacology ; Cell Cycle Proteins/genetics/*metabolism ; Cell Line, Tumor ; F-Box Proteins/genetics/*metabolism ; Glycogen Synthase Kinase 3/metabolism ; Humans ; Mice ; Molecular Sequence Data ; Myeloid Cell Leukemia Sequence 1 Protein ; Niacinamide/analogs & derivatives ; Nitrophenols/pharmacology ; Phenylurea Compounds ; Phosphorylation ; Piperazines/pharmacology ; Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/pathology ; Protein Binding/drug effects ; Proto-Oncogene Proteins c-bcl-2/antagonists & inhibitors/*chemistry/*metabolism ; Pyridines/pharmacology ; SKP Cullin F-Box Protein Ligases/*chemistry/*metabolism ; Sulfonamides/pharmacology ; Tumor Suppressor Proteins/deficiency/genetics/metabolism ; Ubiquitin-Protein Ligases/deficiency/genetics/*metabolism ; *Ubiquitination/drug effects
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
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    Landscape of the PARKIN-dependent ubiquitylome in response to mitochondrial depolarization (2013)
    Nature Publishing Group (NPG)
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    Publication Date: 2013-03-19
    Description: The PARKIN ubiquitin ligase (also known as PARK2) and its regulatory kinase PINK1 (also known as PARK6), often mutated in familial early-onset Parkinson's disease, have central roles in mitochondrial homeostasis and mitophagy. Whereas PARKIN is recruited to the mitochondrial outer membrane (MOM) upon depolarization via PINK1 action and can ubiquitylate porin, mitofusin and Miro proteins on the MOM, the full repertoire of PARKIN substrates--the PARKIN-dependent ubiquitylome--remains poorly defined. Here we use quantitative diGly capture proteomics (diGly) to elucidate the ubiquitylation site specificity and topology of PARKIN-dependent target modification in response to mitochondrial depolarization. Hundreds of dynamically regulated ubiquitylation sites in dozens of proteins were identified, with strong enrichment for MOM proteins, indicating that PARKIN dramatically alters the ubiquitylation status of the mitochondrial proteome. Using complementary interaction proteomics, we found depolarization-dependent PARKIN association with numerous MOM targets, autophagy receptors, and the proteasome. Mutation of the PARKIN active site residue C431, which has been found mutated in Parkinson's disease patients, largely disrupts these associations. Structural and topological analysis revealed extensive conservation of PARKIN-dependent ubiquitylation sites on cytoplasmic domains in vertebrate and Drosophila melanogaster MOM proteins. These studies provide a resource for understanding how the PINK1-PARKIN pathway re-sculpts the proteome to support mitochondrial homeostasis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3641819/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3641819/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sarraf, Shireen A -- Raman, Malavika -- Guarani-Pereira, Virginia -- Sowa, Mathew E -- Huttlin, Edward L -- Gygi, Steven P -- Harper, J Wade -- CA139885/CA/NCI NIH HHS/ -- GM067945/GM/NIGMS NIH HHS/ -- GM070565/GM/NIGMS NIH HHS/ -- GM095567/GM/NIGMS NIH HHS/ -- R01 GM067945/GM/NIGMS NIH HHS/ -- R01 GM070565/GM/NIGMS NIH HHS/ -- R01 GM095567/GM/NIGMS NIH HHS/ -- England -- Nature. 2013 Apr 18;496(7445):372-6. doi: 10.1038/nature12043. Epub 2013 Mar 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23503661" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Drosophila Proteins/metabolism ; Drosophila melanogaster/metabolism ; Humans ; *Membrane Potential, Mitochondrial ; Mice ; Mitochondria/chemistry/*metabolism ; Mitochondrial Membranes/*metabolism ; Mitochondrial Proteins/*metabolism ; Protein Kinases/metabolism ; Proteome/*metabolism ; Proteomics ; Ubiquitin-Protein Ligases/*metabolism ; *Ubiquitination
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 7
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    Transcriptional role of cyclin D1 in development revealed by a genetic-proteomic screen (2010)
    Nature Publishing Group (NPG)
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    Publication Date: 2010-01-22
    Description: Cyclin D1 belongs to the core cell cycle machinery, and it is frequently overexpressed in human cancers. The full repertoire of cyclin D1 functions in normal development and oncogenesis is unclear at present. Here we developed Flag- and haemagglutinin-tagged cyclin D1 knock-in mouse strains that allowed a high-throughput mass spectrometry approach to search for cyclin D1-binding proteins in different mouse organs. In addition to cell cycle partners, we observed several proteins involved in transcription. Genome-wide location analyses (chromatin immunoprecipitation coupled to DNA microarray; ChIP-chip) showed that during mouse development cyclin D1 occupies promoters of abundantly expressed genes. In particular, we found that in developing mouse retinas-an organ that critically requires cyclin D1 function-cyclin D1 binds the upstream regulatory region of the Notch1 gene, where it serves to recruit CREB binding protein (CBP) histone acetyltransferase. Genetic ablation of cyclin D1 resulted in decreased CBP recruitment, decreased histone acetylation of the Notch1 promoter region, and led to decreased levels of the Notch1 transcript and protein in cyclin D1-null (Ccnd1(-/-)) retinas. Transduction of an activated allele of Notch1 into Ccnd1(-/-) retinas increased proliferation of retinal progenitor cells, indicating that upregulation of Notch1 signalling alleviates the phenotype of cyclin D1-deficiency. These studies show that in addition to its well-established cell cycle roles, cyclin D1 has an in vivo transcriptional function in mouse development. Our approach, which we term 'genetic-proteomic', can be used to study the in vivo function of essentially any protein.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2943587/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2943587/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bienvenu, Frederic -- Jirawatnotai, Siwanon -- Elias, Joshua E -- Meyer, Clifford A -- Mizeracka, Karolina -- Marson, Alexander -- Frampton, Garrett M -- Cole, Megan F -- Odom, Duncan T -- Odajima, Junko -- Geng, Yan -- Zagozdzon, Agnieszka -- Jecrois, Marie -- Young, Richard A -- Liu, X Shirley -- Cepko, Constance L -- Gygi, Steven P -- Sicinski, Piotr -- 15603/Cancer Research UK/United Kingdom -- A15603/Cancer Research UK/United Kingdom -- HG004069/HG/NHGRI NIH HHS/ -- HG3456/HG/NHGRI NIH HHS/ -- P01 CA080111/CA/NCI NIH HHS/ -- P01 CA080111-128270/CA/NCI NIH HHS/ -- P01 CA109901/CA/NCI NIH HHS/ -- P01 CA109901-067138/CA/NCI NIH HHS/ -- P01 CA109901-067140/CA/NCI NIH HHS/ -- R01 CA108420/CA/NCI NIH HHS/ -- R01 CA108420-07/CA/NCI NIH HHS/ -- R01 EY008064/EY/NEI NIH HHS/ -- R01 EY009676/EY/NEI NIH HHS/ -- R01 EY009676-18/EY/NEI NIH HHS/ -- R01 EYO9676/PHS HHS/ -- R01 HG002668/HG/NHGRI NIH HHS/ -- R01 HG002668-07/HG/NHGRI NIH HHS/ -- R01 HG003456/HG/NHGRI NIH HHS/ -- R01 HG003456-06/HG/NHGRI NIH HHS/ -- R01 HG004069/HG/NHGRI NIH HHS/ -- R01 HG004069-04/HG/NHGRI NIH HHS/ -- Cancer Research UK/United Kingdom -- England -- Nature. 2010 Jan 21;463(7279):374-8. doi: 10.1038/nature08684.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20090754" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Animals ; CREB-Binding Protein/metabolism ; Chromatin Immunoprecipitation ; Cyclin D1/deficiency/genetics/*metabolism ; *Gene Expression Regulation, Developmental ; Genome/genetics ; High-Throughput Screening Assays ; Histone Acetyltransferases/metabolism ; Mass Spectrometry ; Mice ; Oligonucleotide Array Sequence Analysis ; Promoter Regions, Genetic/genetics ; Protein Binding ; *Proteomics/methods ; Rats ; Receptor, Notch1/genetics/metabolism ; Retina/cytology/embryology/metabolism ; Stem Cells/cytology/metabolism ; *Transcription, Genetic
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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    A function for cyclin D1 in DNA repair uncovered by protein interactome analyses in human cancers (2011)
    Nature Publishing Group (NPG)
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    Publication Date: 2011-06-10
    Description: Cyclin D1 is a component of the core cell cycle machinery. Abnormally high levels of cyclin D1 are detected in many human cancer types. To elucidate the molecular functions of cyclin D1 in human cancers, we performed a proteomic screen for cyclin D1 protein partners in several types of human tumours. Analyses of cyclin D1 interactors revealed a network of DNA repair proteins, including RAD51, a recombinase that drives the homologous recombination process. We found that cyclin D1 directly binds RAD51, and that cyclin D1-RAD51 interaction is induced by radiation. Like RAD51, cyclin D1 is recruited to DNA damage sites in a BRCA2-dependent fashion. Reduction of cyclin D1 levels in human cancer cells impaired recruitment of RAD51 to damaged DNA, impeded the homologous recombination-mediated DNA repair, and increased sensitivity of cells to radiation in vitro and in vivo. This effect was seen in cancer cells lacking the retinoblastoma protein, which do not require D-cyclins for proliferation. These findings reveal an unexpected function of a core cell cycle protein in DNA repair and suggest that targeting cyclin D1 may be beneficial also in retinoblastoma-negative cancers which are currently thought to be unaffected by cyclin D1 inhibition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3134411/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3134411/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jirawatnotai, Siwanon -- Hu, Yiduo -- Michowski, Wojciech -- Elias, Joshua E -- Becks, Lisa -- Bienvenu, Frederic -- Zagozdzon, Agnieszka -- Goswami, Tapasree -- Wang, Yaoyu E -- Clark, Alan B -- Kunkel, Thomas A -- van Harn, Tanja -- Xia, Bing -- Correll, Mick -- Quackenbush, John -- Livingston, David M -- Gygi, Steven P -- Sicinski, Piotr -- P01 CA080111/CA/NCI NIH HHS/ -- P01 CA080111-12/CA/NCI NIH HHS/ -- P01 CA109901/CA/NCI NIH HHS/ -- P01 CA109901-07/CA/NCI NIH HHS/ -- P30 AI060354/AI/NIAID NIH HHS/ -- R01 CA083688/CA/NCI NIH HHS/ -- R01 CA083688-10/CA/NCI NIH HHS/ -- R01 CA138804/CA/NCI NIH HHS/ -- R01 CA138804-02/CA/NCI NIH HHS/ -- Z01 ES065089-11/Intramural NIH HHS/ -- England -- Nature. 2011 Jun 8;474(7350):230-4. doi: 10.1038/nature10155.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21654808" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line, Tumor ; Comet Assay ; Cyclin D1/deficiency/*metabolism ; DNA Damage/radiation effects ; *DNA Repair/radiation effects ; HeLa Cells ; Humans ; Mice ; Neoplasms/genetics/*metabolism/pathology ; Protein Binding/radiation effects ; *Protein Interaction Mapping ; Rad51 Recombinase/*metabolism ; Radiation, Ionizing ; Recombination, Genetic/genetics ; Retinoblastoma Protein/deficiency
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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    A PGC1-alpha-dependent myokine that drives brown-fat-like development of white fat and thermogenesis (2012)
    Nature Publishing Group (NPG)
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    Publication Date: 2012-01-13
    Description: Exercise benefits a variety of organ systems in mammals, and some of the best-recognized effects of exercise on muscle are mediated by the transcriptional co-activator PPAR-gamma co-activator-1 alpha (PGC1-alpha). Here we show in mouse that PGC1-alpha expression in muscle stimulates an increase in expression of FNDC5, a membrane protein that is cleaved and secreted as a newly identified hormone, irisin. Irisin acts on white adipose cells in culture and in vivo to stimulate UCP1 expression and a broad program of brown-fat-like development. Irisin is induced with exercise in mice and humans, and mildly increased irisin levels in the blood cause an increase in energy expenditure in mice with no changes in movement or food intake. This results in improvements in obesity and glucose homeostasis. Irisin could be therapeutic for human metabolic disease and other disorders that are improved with exercise.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3522098/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3522098/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bostrom, Pontus -- Wu, Jun -- Jedrychowski, Mark P -- Korde, Anisha -- Ye, Li -- Lo, James C -- Rasbach, Kyle A -- Bostrom, Elisabeth Almer -- Choi, Jang Hyun -- Long, Jonathan Z -- Kajimura, Shingo -- Zingaretti, Maria Cristina -- Vind, Birgitte F -- Tu, Hua -- Cinti, Saverio -- Hojlund, Kurt -- Gygi, Steven P -- Spiegelman, Bruce M -- DK31405/DK/NIDDK NIH HHS/ -- DK54477/DK/NIDDK NIH HHS/ -- K99 DK087853/DK/NIDDK NIH HHS/ -- R01 DK054477/DK/NIDDK NIH HHS/ -- R01 DK061562/DK/NIDDK NIH HHS/ -- R37 DK031405/DK/NIDDK NIH HHS/ -- England -- Nature. 2012 Jan 11;481(7382):463-8. doi: 10.1038/nature10777.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22237023" target="_blank"〉PubMed〈/a〉
    Keywords: Adipocytes/cytology/drug effects/metabolism ; Adipose Tissue, Brown/*cytology/drug effects/metabolism ; Adipose Tissue, White/*cytology/drug effects/metabolism ; Animals ; Cell Respiration/drug effects ; Cells, Cultured ; Culture Media, Conditioned/pharmacology ; Energy Metabolism/drug effects/genetics/physiology ; Exercise/physiology ; Gene Expression Regulation/drug effects/genetics ; Hormones/metabolism/secretion ; Humans ; Insulin Resistance/physiology ; Intracellular Signaling Peptides and Proteins/genetics/metabolism ; Ion Channels/metabolism ; Mice ; Mice, Inbred BALB C ; Mice, Transgenic ; Mitochondrial Proteins/metabolism ; Models, Animal ; Muscle Cells/metabolism ; Obesity/blood/chemically induced/prevention & control ; Physical Conditioning, Animal/physiology ; Plasma/chemistry ; Subcutaneous Fat/cytology/drug effects/metabolism ; *Thermogenesis/drug effects/genetics ; Trans-Activators/deficiency/genetics/*metabolism/secretion ; Transcription Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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    Cell-cycle-regulated activation of Akt kinase by phosphorylation at its carboxyl terminus (2014)
    Nature Publishing Group (NPG)
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    Publication Date: 2014-03-29
    Description: Akt, also known as protein kinase B, plays key roles in cell proliferation, survival and metabolism. Akt hyperactivation contributes to many pathophysiological conditions, including human cancers, and is closely associated with poor prognosis and chemo- or radiotherapeutic resistance. Phosphorylation of Akt at S473 (ref. 5) and T308 (ref. 6) activates Akt. However, it remains unclear whether further mechanisms account for full Akt activation, and whether Akt hyperactivation is linked to misregulated cell cycle progression, another cancer hallmark. Here we report that Akt activity fluctuates across the cell cycle, mirroring cyclin A expression. Mechanistically, phosphorylation of S477 and T479 at the Akt extreme carboxy terminus by cyclin-dependent kinase 2 (Cdk2)/cyclin A or mTORC2, under distinct physiological conditions, promotes Akt activation through facilitating, or functionally compensating for, S473 phosphorylation. Furthermore, deletion of the cyclin A2 allele in the mouse olfactory bulb leads to reduced S477/T479 phosphorylation and elevated cellular apoptosis. Notably, cyclin A2-deletion-induced cellular apoptosis in mouse embryonic stem cells is partly rescued by S477D/T479E-Akt1, supporting a physiological role for cyclin A2 in governing Akt activation. Together, the results of our study show Akt S477/T479 phosphorylation to be an essential layer of the Akt activation mechanism to regulate its physiological functions, thereby providing a new mechanistic link between aberrant cell cycle progression and Akt hyperactivation in cancer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4076493/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4076493/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Pengda -- Begley, Michael -- Michowski, Wojciech -- Inuzuka, Hiroyuki -- Ginzberg, Miriam -- Gao, Daming -- Tsou, Peiling -- Gan, Wenjian -- Papa, Antonella -- Kim, Byeong Mo -- Wan, Lixin -- Singh, Amrik -- Zhai, Bo -- Yuan, Min -- Wang, Zhiwei -- Gygi, Steven P -- Lee, Tae Ho -- Lu, Kun-Ping -- Toker, Alex -- Pandolfi, Pier Paolo -- Asara, John M -- Kirschner, Marc W -- Sicinski, Piotr -- Cantley, Lewis -- Wei, Wenyi -- 2P01CA120964/CA/NCI NIH HHS/ -- 5T32HL007893/HL/NHLBI NIH HHS/ -- CA177910/CA/NCI NIH HHS/ -- GM089763/GM/NIGMS NIH HHS/ -- GM094777/GM/NIGMS NIH HHS/ -- P01 CA120964/CA/NCI NIH HHS/ -- R01 CA132740/CA/NCI NIH HHS/ -- R01 CA167677/CA/NCI NIH HHS/ -- R01 CA177910/CA/NCI NIH HHS/ -- R01 GM041890/GM/NIGMS NIH HHS/ -- R01 GM089763/GM/NIGMS NIH HHS/ -- R01 GM094777/GM/NIGMS NIH HHS/ -- R01 HL111430/HL/NHLBI NIH HHS/ -- R01CA132740/CA/NCI NIH HHS/ -- S10 OD010612/OD/NIH HHS/ -- T32 HL007893/HL/NHLBI NIH HHS/ -- England -- Nature. 2014 Apr 24;508(7497):541-5. doi: 10.1038/nature13079. Epub 2014 Mar 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA. ; 1] Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA [2] Department of Systems Biology, Harvard Medical School, Boston, Massachusetts 02115, USA. ; Department of Cancer Biology, Dana-Farber Cancer Institute and Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA. ; Department of Cell Biology, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA [2] Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA [3] Cancer Genetics Program and Division of Genetics, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02115, USA. ; Division of Gerontology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA. ; Cell Signaling Technology, Danvers, Massachusetts 01923, USA. ; Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA. ; 1] Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA [2] The Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, the First Affiliated Hospital, Soochow University, Suzhou 215123, China (Z.W.); Cancer Center at Weill Cornell Medical College and NewYork-Presbyterian Hospital, New York, New York 10065, USA (L.C.). ; Department of Systems Biology, Harvard Medical School, Boston, Massachusetts 02115, USA. ; 1] Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA [2] Department of Systems Biology, Harvard Medical School, Boston, Massachusetts 02115, USA [3] The Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, the First Affiliated Hospital, Soochow University, Suzhou 215123, China (Z.W.); Cancer Center at Weill Cornell Medical College and NewYork-Presbyterian Hospital, New York, New York 10065, USA (L.C.).〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24670654" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apoptosis/genetics ; Cell Cycle/*physiology ; Cell Proliferation ; Cyclin A2/metabolism ; Cyclin-Dependent Kinase 2/metabolism ; Embryonic Stem Cells/cytology/metabolism ; Enzyme Activation ; Male ; Mice ; Multiprotein Complexes/metabolism ; Neoplasms/enzymology/pathology ; Olfactory Bulb/cytology/enzymology/metabolism ; Oncogene Protein v-akt/chemistry/metabolism ; Phosphorylation ; Phosphoserine/metabolism ; Phosphothreonine/metabolism ; Proto-Oncogene Proteins c-akt/*chemistry/*metabolism ; TOR Serine-Threonine Kinases/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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