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  • 1
    Publication Date: 2001-04-09
    Description: HIF (hypoxia-inducible factor) is a transcription factor that plays a pivotal role in cellular adaptation to changes in oxygen availability. In the presence of oxygen, HIF is targeted for destruction by an E3 ubiquitin ligase containing the von Hippel-Lindau tumor suppressor protein (pVHL). We found that human pVHL binds to a short HIF-derived peptide when a conserved proline residue at the core of this peptide is hydroxylated. Because proline hydroxylation requires molecular oxygen and Fe(2+), this protein modification may play a key role in mammalian oxygen sensing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ivan, M -- Kondo, K -- Yang, H -- Kim, W -- Valiando, J -- Ohh, M -- Salic, A -- Asara, J M -- Lane, W S -- Kaelin , W G Jr -- New York, N.Y. -- Science. 2001 Apr 20;292(5516):464-8. Epub 2001 Apr 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Dana-Farber Cancer Institute and Brigham and Women's Hospital, Howard Hughes Medical Institute, Harvard Medical School, 44 Binney Street, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11292862" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Basic Helix-Loop-Helix Transcription Factors ; Cell Hypoxia ; Cell Line ; Cobalt/pharmacology ; Deferoxamine/pharmacology ; Humans ; Hydroxylation ; Hydroxyproline/*metabolism ; *Ligases ; Mass Spectrometry ; Mice ; Molecular Sequence Data ; Oxygen/*physiology ; Protein Structure, Tertiary ; Proteins/*metabolism ; Recombinant Fusion Proteins/metabolism ; Trans-Activators/chemistry/genetics/*metabolism ; Transcription Factors/*metabolism ; Tumor Cells, Cultured ; *Tumor Suppressor Proteins ; *Ubiquitin-Protein Ligases ; Ubiquitins/metabolism ; Von Hippel-Lindau Tumor Suppressor Protein
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 1999-04-24
    Description: The von Hippel-Lindau (VHL) tumor suppressor gene is mutated in most human kidney cancers. The VHL protein is part of a complex that includes Elongin B, Elongin C, and Cullin-2, proteins associated with transcriptional elongation and ubiquitination. Here it is shown that the endogenous VHL complex in rat liver also includes Rbx1, an evolutionarily conserved protein that contains a RING-H2 fingerlike motif and that interacts with Cullins. The yeast homolog of Rbx1 is a subunit and potent activator of the Cdc53-containing SCFCdc4 ubiquitin ligase required for ubiquitination of the cyclin-dependent kinase inhibitor Sic1 and for the G1 to S cell cycle transition. These findings provide a further link between VHL and the cellular ubiquitination machinery.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kamura, T -- Koepp, D M -- Conrad, M N -- Skowyra, D -- Moreland, R J -- Iliopoulos, O -- Lane, W S -- Kaelin, W G Jr -- Elledge, S J -- Conaway, R C -- Harper, J W -- Conaway, J W -- AG-11085/AG/NIA NIH HHS/ -- GM41628/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1999 Apr 23;284(5414):657-61.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Program in Molecular and Cell Biology, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10213691" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Carrier Proteins/chemistry/genetics/*metabolism ; Cell Cycle ; Cell Cycle Proteins/metabolism ; Cell Line ; *Cullin Proteins ; Cyclin-Dependent Kinase Inhibitor Proteins ; *F-Box Proteins ; Fungal Proteins/metabolism ; *Ligases ; Liver ; Male ; Molecular Sequence Data ; Peptide Synthases/*metabolism ; Proteins/*metabolism ; Rats ; Rats, Sprague-Dawley ; Recombinant Fusion Proteins/metabolism ; S-Phase Kinase-Associated Proteins ; SKP Cullin F-Box Protein Ligases ; Saccharomyces cerevisiae/metabolism ; *Saccharomyces cerevisiae Proteins ; Sequence Alignment ; Transcription Factors/metabolism ; *Tumor Suppressor Proteins ; *Ubiquitin-Protein Ligases ; Ubiquitins/*metabolism ; Von Hippel-Lindau Tumor Suppressor Protein
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 1992-02-28
    Description: The yeast transcription factor IIA (TFIIA), a component of the basal transcription machinery of RNA polymerase II and implicated in vitro in regulation of basal transcription, is composed of two subunits of 32 and 13.5 kilodaltons. The genes that encode these subunits, termed TOA1 and TOA2, respectively, were cloned. Neither gene shares obvious sequence similarity with the other or with any other previously identified genes. The recombinant factor bound to a TATA binding protein-DNA complex and complemented yeast and mammalian in vitro transcription systems depleted of TFIIA. Both the TOA1 and TOA2 genes are essential for growth of yeast.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ranish, J A -- Lane, W S -- Hahn, S -- New York, N.Y. -- Science. 1992 Feb 28;255(5048):1127-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Fred Hutchinson Cancer Research Center, Seattle, WA 98104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1546313" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cloning, Molecular ; DNA Mutational Analysis ; DNA-Binding Proteins/genetics ; *Genes, Fungal ; Molecular Sequence Data ; Recombinant Proteins/metabolism ; Saccharomyces cerevisiae/*genetics ; *Saccharomyces cerevisiae Proteins ; Transcription Factor TFIIA ; Transcription Factors/*genetics ; Transcription, Genetic
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  • 4
    Publication Date: 2009-05-02
    Description: Molecular preservation in non-avian dinosaurs is controversial. We present multiple lines of evidence that endogenous proteinaceous material is preserved in bone fragments and soft tissues from an 80-million-year-old Campanian hadrosaur, Brachylophosaurus canadensis [Museum of the Rockies (MOR) 2598]. Microstructural and immunological data are consistent with preservation of multiple bone matrix and vessel proteins, and phylogenetic analyses of Brachylophosaurus collagen sequenced by mass spectrometry robustly support the bird-dinosaur clade, consistent with an endogenous source for these collagen peptides. These data complement earlier results from Tyrannosaurus rex (MOR 1125) and confirm that molecular preservation in Cretaceous dinosaurs is not a unique event.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schweitzer, Mary H -- Zheng, Wenxia -- Organ, Chris L -- Avci, Recep -- Suo, Zhiyong -- Freimark, Lisa M -- Lebleu, Valerie S -- Duncan, Michael B -- Vander Heiden, Matthew G -- Neveu, John M -- Lane, William S -- Cottrell, John S -- Horner, John R -- Cantley, Lewis C -- Kalluri, Raghu -- Asara, John M -- AA 13913/AA/NIAAA NIH HHS/ -- CA 125550/CA/NCI NIH HHS/ -- DK 55001/DK/NIDDK NIH HHS/ -- DK 61866/DK/NIDDK NIH HHS/ -- DK 62987/DK/NIDDK NIH HHS/ -- R01 AA013913/AA/NIAAA NIH HHS/ -- R01 CA125550/CA/NCI NIH HHS/ -- R01 DK055001/DK/NIDDK NIH HHS/ -- R01 DK062987/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2009 May 1;324(5927):626-31. doi: 10.1126/science.1165069.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉North Carolina State University, Raleigh, NC 27695, USA. schweitzer@ncsu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19407199" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Birds/classification ; Bone Demineralization Technique ; Bone Matrix/chemistry ; Collagen/analysis/*chemistry/isolation & purification ; *Dinosaurs/classification ; Elastin/analysis ; Femur/blood supply/*chemistry/ultrastructure ; *Fossils ; Hemoglobins/analysis ; Immunologic Techniques ; Laminin/analysis ; Mass Spectrometry ; Microscopy, Electron, Scanning ; Molecular Sequence Data ; Osteocytes/ultrastructure ; Peptide Fragments/chemistry/isolation & purification ; Phylogeny ; Proteins/analysis/*chemistry/isolation & purification ; Sequence Alignment
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 1993-04-09
    Description: Alternative splicing of precursor messenger RNAs (pre-mRNAs) is a common mechanism of regulating gene expression. SR proteins are a family of pre-mRNA splicing factors that are structurally related and evolutionarily conserved. Any member of the SR family can complement a splicing-deficient extract that lacks the entire family of SR proteins. Here it is demonstrated that particular SR proteins have distinct functions in alternative pre-mRNA splicing in vitro. In addition, SR proteins are differentially expressed in a variety of tissues. These results suggest a fundamental role for SR proteins in the regulation of alternative splicing.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zahler, A M -- Neugebauer, K M -- Lane, W S -- Roth, M B -- 42786-02/PHS HHS/ -- New York, N.Y. -- Science. 1993 Apr 9;260(5105):219-22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98104.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8385799" target="_blank"〉PubMed〈/a〉
    Keywords: *Alternative Splicing ; Amino Acid Sequence ; Cell Extracts ; HeLa Cells ; Humans ; Molecular Sequence Data ; RNA Precursors/*genetics ; RNA Splicing ; RNA, Viral/genetics ; RNA-Binding Proteins/*physiology ; Simian virus 40/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 6
    Publication Date: 1995-05-05
    Description: Lactacystin is a Streptomyces metabolite that inhibits cell cycle progression and induces neurite outgrowth in a murine neuroblastoma cell line. Tritium-labeled lactacystin was used to identify the 20S proteasome as its specific cellular target. Three distinct peptidase activities of this enzyme complex (trypsin-like, chymotrypsin-like, and peptidylglutamyl-peptide hydrolyzing activities) were inhibited by lactacystin, the first two irreversibly and all at different rates. None of five other proteases were inhibited, and the ability of lactacystin analogs to inhibit cell cycle progression and induce neurite outgrowth correlated with their ability to inhibit the proteasome. Lactacystin appears to modify covalently the highly conserved amino-terminal threonine of the mammalian proteasome subunit X (also called MB1), a close homolog of the LMP7 proteasome subunit encoded by the major histocompatibility complex. This threonine residue may therefore have a catalytic role, and subunit X/MB1 may be a core component of an amino-terminal-threonine protease activity of the proteasome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fenteany, G -- Standaert, R F -- Lane, W S -- Choi, S -- Corey, E J -- Schreiber, S L -- New York, N.Y. -- Science. 1995 May 5;268(5211):726-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Chemistry, Harvard University, Cambridge, MA 02138.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7732382" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylcysteine/*analogs & derivatives/pharmacology ; Amino Acid Sequence ; Animals ; Carrier Proteins/metabolism ; Cattle ; Chromatography, High Pressure Liquid ; Cysteine Endopeptidases/*drug effects/metabolism ; Cysteine Proteinase Inhibitors/*pharmacology ; Electrophoresis, Polyacrylamide Gel ; Mice ; Molecular Sequence Data ; Multienzyme Complexes/*drug effects/metabolism ; Nerve Tissue Proteins/metabolism ; Neurons/*drug effects ; Proteasome Endopeptidase Complex ; Threonine/*drug effects ; Tumor Cells, Cultured
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  • 7
    Publication Date: 1995-09-08
    Description: The Elongin (SIII) complex activates elongation by mammalian RNA polymerase II by suppressing transient pausing of the polymerase at many sites within transcription units. Elongin is a heterotrimer composed of A, B, and C subunits of 110, 18, and 15 kilodaltons, respectively. Here, the mammalian Elongin A gene was isolated and expressed, and the Elongin (SIII) complex reconstituted with recombinant subunits. Elongin A is shown to function as the transcriptionally active component of Elongin (SIII) and Elongin B and C as regulatory subunits. Whereas Elongin C assembles with Elongin A to form an AC complex with increased specific activity, Elongin B, a member of the ubiquitin-homology gene family, appears to serve a chaperone-like function, facilitating assembly and enhancing stability of the Elongin (SIII) complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Aso, T -- Lane, W S -- Conaway, J W -- Conaway, R C -- GM41628/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1995 Sep 8;269(5229):1439-43.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Molecular and Cell Biology, Oklahoma Medical Research Foundation, Oklahoma City 73104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7660129" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Base Sequence ; Genes, Tumor Suppressor ; *Ligases ; Molecular Sequence Data ; Nuclear Proteins/metabolism ; RNA Polymerase II/*metabolism ; RNA, Messenger/biosynthesis ; Recombinant Proteins/metabolism ; Temperature ; Transcription Factors/chemistry/genetics/isolation & purification/*metabolism ; *Transcription, Genetic ; *Tumor Suppressor Proteins ; *Ubiquitin-Protein Ligases ; Von Hippel-Lindau Tumor Suppressor Protein
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  • 8
    Publication Date: 1996-03-29
    Description: The human ELL gene on chromosome 19 undergoes frequent translocations with the trithorax-like MLL gene on chromosome 11 in acute myeloid leukemias. Here, ELL was shown to encode a previously uncharacterized elongation factor that can increase the catalytic rate of RNA polymerase II transcription by suppressing transient pausing by polymerase at multiple sites along the DNA. Functionally, ELL resembles Elongin (SIII), a transcription elongation factor regulated by the product of the von Hippel-Lindau (VHL) tumor suppressor gene. The discovery of a second elongation factor implicated in oncogenesis provides further support for a close connection between the regulation of transcription elongation and cell growth.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shilatifard, A -- Lane, W S -- Jackson, K W -- Conaway, R C -- Conaway, J W -- GM41628/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1996 Mar 29;271(5257):1873-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Program in Molecular and Cell Biology, Oklahoma Medical Research Foundation, Oklahoma City, 73104, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8596958" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cloning, Molecular ; DNA-Binding Proteins/chemistry/*genetics/metabolism ; Genes, Tumor Suppressor ; Histone-Lysine N-Methyltransferase ; Humans ; Leukemia/genetics ; Molecular Sequence Data ; Myeloid-Lymphoid Leukemia Protein ; *Neoplasm Proteins ; *Peptide Elongation Factors ; *Proto-Oncogenes ; RNA Polymerase II/*metabolism ; RNA, Messenger/genetics/metabolism ; Rats ; Recombinant Proteins/metabolism ; Transcription Factors/chemistry/*genetics/metabolism ; Transcription, Genetic ; Transcriptional Elongation Factors ; Translocation, Genetic ; von Hippel-Lindau Disease/genetics
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  • 9
    Publication Date: 1993-10-29
    Description: Nuclear factor of activated T cells (NFAT) is a transcription factor that regulates expression of the cytokine interleukin-2 (IL-2) in activated T cells. The DNA-binding specificity of NFAT is conferred by NFATp, a phosphoprotein that is a target for the immunosuppressive compounds cyclosporin A and FK506. Here, the purification of NFATp from murine T cells and the isolation of a complementary DNA clone encoding NFATp are reported. A truncated form of NFATp, expressed as a recombinant protein in bacteria, binds specifically to the NFAT site of the murine IL-2 promoter and forms a transcriptionally active complex with recombinant protein fragment react with T cell NFATp. The molecular cloning of NFATp should allow detailed analysis of a T cell transcription factor that is central to initiation of the immune response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McCaffrey, P G -- Luo, C -- Kerppola, T K -- Jain, J -- Badalian, T M -- Ho, A M -- Burgeon, E -- Lane, W S -- Lambert, J N -- Curran, T -- CA42471/CA/NCI NIH HHS/ -- GM46227/GM/NIGMS NIH HHS/ -- NS25078/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1993 Oct 29;262(5134):750-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Tumor Virology, Dana-Farber Cancer Institute, Boston, MA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8235597" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; DNA, Complementary ; DNA-Binding Proteins/genetics/*isolation & purification/physiology ; Immunosuppressive Agents/pharmacology ; Interleukin-2/genetics ; Mice ; Molecular Sequence Data ; NFATC Transcription Factors ; *Nuclear Proteins ; Phosphoproteins/genetics/isolation & purification/physiology ; Promoter Regions, Genetic ; Proto-Oncogene Proteins c-fos/physiology ; Proto-Oncogene Proteins c-jun/physiology ; RNA, Messenger/analysis ; Recombinant Proteins ; T-Lymphocytes/*chemistry ; Transcription Factors/genetics/*isolation & purification/physiology
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  • 10
    Publication Date: 1985-01-18
    Description: The T-cell receptor for antigen (Ti) was purified from the human tumor cell line HPB-ALL. Amino-terminal sequence analysis of an acid-cleaved peptide of the Ti alpha chain showed that it is highly homologous to a putative murine alpha chain recently described. Amino-terminal sequence analysis of the Ti beta chain revealed that it shares 50 percent homology with the Ti beta chain amino acid sequences from two other human T-cell tumors. Nucleotide sequence analysis of a complementary DNA clone encoding the Ti beta chain from the HPB-MLT cell line showed that this chain represents a second human constant region gene segment and suggested that it arises from direct joining of the variable and joining gene segments without any intervening D region sequences.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jones, N -- Leiden, J -- Dialynas, D -- Fraser, J -- Clabby, M -- Kishimoto, T -- Strominger, J L -- Andrews, D -- Lane, W -- Woody, J -- 5 R01 AI15669/AI/NIAID NIH HHS/ -- AI10736/AI/NIAID NIH HHS/ -- Y001CP00502/CP/NCI NIH HHS/ -- New York, N.Y. -- Science. 1985 Jan 18;227(4684):311-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3871253" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Base Sequence ; Cell Line ; Humans ; Immunoglobulin Constant Regions/genetics ; Leukemia, Lymphoid/immunology ; Lymphoma/immunology ; Mice ; Nucleic Acid Hybridization ; Receptors, Antigen, T-Cell/*genetics ; T-Lymphocytes/*immunology
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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