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  • 1
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    Fos-associated protein p39 is the product of the jun proto-oncogene (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-05-20
    Description: The Fos protein complex and several Fos-related antigens (FRA) bind specifically to a sequence element referred to as the HeLa cell activator protein 1 (AP-1) binding site. A combination of structural and immunological comparisons has identified the Fos-associated protein (p39) as the protein product of the jun proto-oncogene (c-Jun). The p39/Jun protein is one of the major polypeptides identified in AP-1 oligonucleotide affinity chromatography extracts of cellular proteins. These preparations of AP-1 also contain Fos and several FRA's. Some of these proteins bind to the AP-1 site directly whereas others, like Fos, appear to bind indirectly via protein-protein interactions. Cell-surface stimulation results in an increase in c-fos and c-jun products. Thus, the products of two protooncogenes (and several related proteins), induced by extracellular stimuli, form a complex that associates with transcriptional control elements containing AP-1 sites, thereby potentially mediating the long-term responses to signals that regulate growth control and development.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rauscher, F J 3rd -- Cohen, D R -- Curran, T -- Bos, T J -- Vogt, P K -- Bohmann, D -- Tjian, R -- Franza, B R Jr -- CA40512/CA/NCI NIH HHS/ -- CA42564/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1988 May 20;240(4855):1010-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Roche Institute for Molecular Biology, Nutley, NJ 07110.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3130660" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Transformation, Neoplastic ; HeLa Cells/analysis ; Humans ; Proto-Oncogene Proteins/*genetics/isolation & purification ; Proto-Oncogene Proteins c-jun ; *Proto-Oncogenes
    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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  • 2
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    A new antibiotic kills pathogens without detectable resistance (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-01-07
    Description: Antibiotic resistance is spreading faster than the introduction of new compounds into clinical practice, causing a public health crisis. Most antibiotics were produced by screening soil microorganisms, but this limited resource of cultivable bacteria was overmined by the 1960s. Synthetic approaches to produce antibiotics have been unable to replace this platform. Uncultured bacteria make up approximately 99% of all species in external environments, and are an untapped source of new antibiotics. We developed several methods to grow uncultured organisms by cultivation in situ or by using specific growth factors. Here we report a new antibiotic that we term teixobactin, discovered in a screen of uncultured bacteria. Teixobactin inhibits cell wall synthesis by binding to a highly conserved motif of lipid II (precursor of peptidoglycan) and lipid III (precursor of cell wall teichoic acid). We did not obtain any mutants of Staphylococcus aureus or Mycobacterium tuberculosis resistant to teixobactin. The properties of this compound suggest a path towards developing antibiotics that are likely to avoid development of resistance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ling, Losee L -- Schneider, Tanja -- Peoples, Aaron J -- Spoering, Amy L -- Engels, Ina -- Conlon, Brian P -- Mueller, Anna -- Schaberle, Till F -- Hughes, Dallas E -- Epstein, Slava -- Jones, Michael -- Lazarides, Linos -- Steadman, Victoria A -- Cohen, Douglas R -- Felix, Cintia R -- Fetterman, K Ashley -- Millett, William P -- Nitti, Anthony G -- Zullo, Ashley M -- Chen, Chao -- Lewis, Kim -- AI085612/AI/NIAID NIH HHS/ -- T-RO1AI085585/AI/NIAID NIH HHS/ -- England -- Nature. 2015 Jan 22;517(7535):455-9. doi: 10.1038/nature14098. Epub 2015 Jan 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉NovoBiotic Pharmaceuticals, Cambridge, Massachusetts 02138, USA. ; 1] Institute of Medical Microbiology, Immunology and Parasitology-Pharmaceutical Microbiology Section, University of Bonn, Bonn 53115, Germany [2] German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, 53115 Bonn, Germany. ; Antimicrobial Discovery Center, Northeastern University, Department of Biology, Boston, Massachusetts 02115, USA. ; 1] German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, 53115 Bonn, Germany [2] Institute for Pharmaceutical Biology, University of Bonn, Bonn 53115, Germany. ; Department of Biology, Northeastern University, Boston, Massachusetts 02115, USA. ; Selcia, Ongar, Essex CM5 0GS, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25561178" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/biosynthesis/chemistry/isolation & ; purification/*pharmacology ; Betaproteobacteria/chemistry/genetics ; Biological Products/chemistry/isolation & purification/pharmacology ; Cell Wall/chemistry/drug effects/metabolism ; Depsipeptides/biosynthesis/chemistry/isolation & purification/*pharmacology ; Disease Models, Animal ; *Drug Resistance, Microbial/genetics ; Female ; Mice ; Microbial Sensitivity Tests ; Microbial Viability/*drug effects ; Molecular Sequence Data ; Multigene Family/genetics ; Mycobacterium tuberculosis/cytology/*drug effects/genetics ; Peptidoglycan/biosynthesis ; Staphylococcal Infections/drug therapy/microbiology ; Staphylococcus aureus/chemistry/cytology/*drug effects/genetics ; Teichoic Acids/biosynthesis ; Time Factors
    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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    Mapping patterns of c-fos expression in the central nervous system after seizure (1987)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1987-07-10
    Description: A dramatic and specific induction of c-fos was observed in identifiable neuronal populations in vivo after administration of the convulsant Metrazole. This effect was time- and dose-dependent and was abolished by prior treatment with the anticonvulsant drugs diazepam or pentobarbital. About 60 minutes after administration of Metrazole, c-fos messenger RNA reached a maximum and declined to basal levels after 180 minutes. A further decrease below that in normal brain was observed before a return to basal levels after 16 hours. While Metrazole still elicited seizures during this period, reinduction of c-fos was largely refractory. At 90 minutes, c-fos protein was observed in the nuclei of neurons in the dentate gyrus, and in the pyriform and cingulate cortices. Subsequently, c-fos protein appeared throughout the cortex, hippocampus, and limbic system. Thus, seizure activity results in increased c-fos gene expression in particular subsets of neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morgan, J I -- Cohen, D R -- Hempstead, J L -- Curran, T -- New York, N.Y. -- Science. 1987 Jul 10;237(4811):192-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/3037702" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Brain Chemistry/drug effects ; DNA-Binding Proteins/biosynthesis/genetics ; Diazepam/pharmacology ; Fluorescent Antibody Technique ; Gene Expression Regulation ; Mice ; Mice, Inbred BALB C ; Neurons/metabolism ; Pentobarbital/pharmacology ; Pentylenetetrazole/antagonists & inhibitors/toxicity ; Proto-Oncogene Proteins/*biosynthesis/genetics ; Proto-Oncogene Proteins c-fos ; Receptors, GABA-A/drug effects ; Seizures/chemically induced/*metabolism
    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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