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  • 11
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    Competencies: a cure for pre-med curriculum (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, Winston A -- Amasino, Richard M -- Ares, Manuel Jr -- Banerjee, Utpal -- Bartel, Bonnie -- Corces, Victor G -- Drennan, Catherine L -- Elgin, Sarah C R -- Epstein, Irving R -- Fanning, Ellen -- Guillette, Louis J Jr -- Handelsman, Jo -- Hatfull, Graham F -- Hoy, Ronald Raymond -- Kelley, Darcy -- Leinwand, Leslie A -- Losick, Richard -- Lu, Yi -- Lynn, David G -- Neuhauser, Claudia -- O'Dowd, Diane K -- Olivera, Toto -- Pevzner, Pavel -- Richards-Kortum, Rebecca R -- Rine, Jasper -- Sah, Robert L -- Strobel, Scott A -- Walker, Graham C -- Walt, David R -- Warner, Isiah M -- Wessler, Sue -- Willard, Huntington F -- Zare, Richard N -- New York, N.Y. -- Science. 2011 Nov 11;334(6057):760-1. doi: 10.1126/science.334.6057.760-b.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22076362" target="_blank"〉PubMed〈/a〉
    Keywords: *Curriculum ; *Education, Premedical ; *Educational Status ; *School Admission Criteria ; *Schools, Medical ; Universities
    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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  • 12
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    Science education. Changing the culture of science education at research universities (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-01-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Anderson, W A -- Banerjee, U -- Drennan, C L -- Elgin, S C R -- Epstein, I R -- Handelsman, J -- Hatfull, G F -- Losick, R -- O'Dowd, D K -- Olivera, B M -- Strobel, S A -- Walker, G C -- Warner, I M -- New York, N.Y. -- Science. 2011 Jan 14;331(6014):152-3. doi: 10.1126/science.1198280.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard University, Washington, DC 20059, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21233371" target="_blank"〉PubMed〈/a〉
    Keywords: *Academies and Institutes ; *Faculty ; Interdisciplinary Communication ; *Research ; Research Support as Topic ; Science/*education ; *Teaching ; *Universities
    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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  • 13
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    Retrospective. Francois Jacob (1920-2013) (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-05-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shapiro, Lucy -- Losick, Richard -- New York, N.Y. -- Science. 2013 May 24;340(6135):939. doi: 10.1126/science.1239975.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Developmental Biology, Stanford University, Stanford, CA 94305, USA. shapiro@stanford.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23704565" target="_blank"〉PubMed〈/a〉
    Keywords: DNA/genetics ; France ; *Gene Expression Regulation ; History, 20th Century ; History, 21st Century ; Molecular Biology/*history ; Nobel Prize ; Protein Biosynthesis
    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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  • 14
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    Protein localization and cell fate in bacteria (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-05-02
    Description: A major breakthrough in understanding the bacterial cell is the discovery that the cell is highly organized at the level of protein localization. Proteins are positioned at particular sites in bacteria, including the cell pole, the incipient division plane, and the septum. Differential protein localization can control DNA replication, chromosome segregation, and cytokinesis and is responsible for generating daughter cells with different fates upon cell division. Recent discoveries have revealed that progression through the cell cycle and communication between cellular compartments are mediated by two-component signal transduction systems and signaling pathways involving transcription factor activation by proteolytic processing. Asymmetric cell division in Caulobacter crescentus and sporulation in Bacillus subtilis are used as paradigms for the control of the cell cycle and cellular morphogenesis in bacterial cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shapiro, L -- Losick, R -- GM-32506/GM/NIGMS NIH HHS/ -- GM18568/GM/NIGMS NIH HHS/ -- GM51426/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1997 May 2;276(5313):712-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Biology, Beckman Center, Stanford University School of Medicine, Stanford, CA 94305-5427, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9115191" target="_blank"〉PubMed〈/a〉
    Keywords: Bacillus subtilis/cytology/genetics/*physiology ; Bacterial Proteins/*metabolism ; Caulobacter crescentus/cytology/genetics/physiology ; Cell Cycle ; Cell Polarity ; Chromosomes, Bacterial/physiology ; *DNA-Binding Proteins ; Gene Expression Regulation, Bacterial ; Genes, Bacterial ; Morphogenesis ; Spores, Bacterial/physiology ; Transcription Factors/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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  • 15
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    RacA, a bacterial protein that anchors chromosomes to the cell poles (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-12-21
    Description: Eukaryotic chromosomes are anchored to a spindle apparatus during mitosis, but no such structure is known during chromosome segregation in bacteria. When sister chromosomes are segregated during sporulation in Bacillus subtilis, the replication origin regions migrate to opposite poles of the cell. If and how origin regions are fastened at the poles has not been determined. Here we describe a developmental protein, RacA, that acts as a bridge between the origin region and the cell poles. We propose that RacA assembles into an adhesive patch at a centromere-like element near the origin, causing chromosomes to stick at the poles.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ben-Yehuda, Sigal -- Rudner, David Z -- Losick, Richard -- GM18568/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Jan 24;299(5606):532-6. Epub 2002 Dec 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12493822" target="_blank"〉PubMed〈/a〉
    Keywords: Bacillus subtilis/genetics/*metabolism/physiology ; Bacterial Proteins/genetics/*metabolism ; Cell Cycle Proteins/metabolism ; Cell Division ; Chromosomes, Bacterial/*metabolism ; DNA, Bacterial/*metabolism ; Microscopy, Fluorescence ; Models, Biological ; Precipitin Tests ; Recombinant Fusion Proteins/metabolism ; Replication Origin ; Spores, Bacterial/physiology
    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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  • 16
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    Cannibalism by sporulating bacteria (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-06-21
    Description: Spore formation by the bacterium Bacillus subtilis is an elaborate developmental process that is triggered by nutrient limitation. Here we report that cells that have entered the pathway to sporulate produce and export a killing factor and a signaling protein that act cooperatively to block sister cells from sporulating and to cause them to lyse. The sporulating cells feed on the nutrients thereby released, which allows them to keep growing rather than to complete morphogenesis. We propose that sporulation is a stress-response pathway of last resort and that B. subtilis delays a commitment to spore formation by cannibalizing its siblings.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gonzalez-Pastor, Jose E -- Hobbs, Errett C -- Losick, Richard -- GM18568/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2003 Jul 25;301(5632):510-3. Epub 2003 Jun 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, The Biological Laboratories, Harvard University, 16 Divinity Avenue, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12817086" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Bacillus subtilis/genetics/metabolism/*physiology ; Bacterial Proteins/genetics/*metabolism ; Bacteriolysis ; Gene Expression Profiling ; *Gene Expression Regulation, Bacterial ; Genes, Bacterial ; Mutation ; Oligonucleotide Array Sequence Analysis ; *Operon ; Sigma Factor/genetics/metabolism ; Signal Transduction ; Spores, Bacterial/*physiology ; Transcription Factors/genetics/metabolism ; Transcription, Genetic
    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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  • 17
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    An open letter to Elias Zerhouni (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-03-05
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Altman, Sidney -- Bassler, Bonnie L -- Beckwith, Jon -- Belfort, Marlene -- Berg, Howard C -- Bloom, Barry -- Brenchley, Jean E -- Campbell, Allan -- Collier, R John -- Connell, Nancy -- Cozzarelli, Nicholas R -- Craig, Nancy L -- Darst, Seth -- Ebright, Richard H -- Elledge, Stephen J -- Falkow, Stanley -- Galan, Jorge E -- Gottesman, Max -- Gourse, Richard -- Grindley, Nigel D F -- Gross, Carol A -- Grossman, Alan -- Hochschild, Ann -- Howe, Martha -- Hurwitz, Jerard -- Isberg, Ralph R -- Kaplan, Samuel -- Kornberg, Arthur -- Kustu, Sydney G -- Landick, Robert C -- Landy, Arthur -- Levy, Stuart B -- Losick, Richard -- Long, Sharon R -- Maloy, Stanley R -- Mekalanos, John J -- Neidhardt, Frederick C -- Pace, Norman R -- Ptashne, Mark -- Roberts, Jeffrey W -- Roth, John R -- Rothman-Denes, Lucia B -- Salyers, Abigail -- Schaechter, Moselio -- Shapiro, Lucy -- Silhavy, Thomas J -- Simon, Melvin I -- Walker, Graham -- Yanofsky, Charles -- Zinder, Norton -- New York, N.Y. -- Science. 2005 Mar 4;307(5714):1409-10.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15746409" target="_blank"〉PubMed〈/a〉
    Keywords: Biological Warfare ; *Biomedical Research/economics ; *Bioterrorism ; Financing, Government ; *Microbiology ; *National Institutes of Health (U.S.) ; Peer Review, Research ; Public Health ; *Research Support as Topic ; United States
    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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  • 18
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    One for all and all for one (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-05-02
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kolter, R -- Losick, R -- New York, N.Y. -- Science. 1998 Apr 10;280(5361):226-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, Harvard Medical School, Boston, MA 02115, USA. kolter@mbcrr.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9565532" target="_blank"〉PubMed〈/a〉
    Keywords: 4-Butyrolactone/*analogs & derivatives/metabolism ; Bacterial Adhesion ; *Bacterial Physiological Phenomena ; Biofilms/*growth & development ; Homoserine/*analogs & derivatives/metabolism ; Pseudomonas aeruginosa/*physiology
    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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  • 19
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    Cell biology. Fats, flies, and palmitate (2002)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2002-05-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nohturfft, Axel -- Losick, Richard -- New York, N.Y. -- Science. 2002 May 3;296(5569):857-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138, USA. axno@mcb.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11988558" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; CCAAT-Enhancer-Binding Proteins/*metabolism ; Cell Nucleus/metabolism ; Ceramides/metabolism ; Cholesterol/metabolism ; DNA-Binding Proteins/*metabolism ; Drosophila melanogaster/*metabolism ; Endopeptidases/metabolism ; Endoplasmic Reticulum/metabolism ; Fatty Acids/biosynthesis ; Feedback, Physiological ; Gene Expression Regulation ; Gene Silencing ; Golgi Apparatus/metabolism ; Homeostasis ; Intracellular Signaling Peptides and Proteins ; Mammals/metabolism ; Membrane Lipids/*biosynthesis/metabolism ; Membrane Proteins/chemistry/metabolism ; Models, Biological ; Palmitates/*metabolism ; Phosphatidylcholines/biosynthesis ; Phosphatidylethanolamines/*metabolism ; Protein Structure, Tertiary ; RNA, Messenger/genetics/metabolism ; Sterol Regulatory Element Binding Protein 1 ; Transcription Factors/*metabolism
    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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  • 20
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    Memory and modularity in cell-fate decision making (2013)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2013-11-22
    Description: Genetically identical cells sharing an environment can display markedly different phenotypes. It is often unclear how much of this variation derives from chance, external signals, or attempts by individual cells to exert autonomous phenotypic programs. By observing thousands of cells for hundreds of consecutive generations under constant conditions, we dissect the stochastic decision between a solitary, motile state and a chained, sessile state in Bacillus subtilis. We show that the motile state is 'memoryless', exhibiting no autonomous control over the time spent in the state. In contrast, the time spent as connected chains of cells is tightly controlled, enforcing coordination among related cells in the multicellular state. We show that the three-protein regulatory circuit governing the decision is modular, as initiation and maintenance of chaining are genetically separable functions. As stimulation of the same initiating pathway triggers biofilm formation, we argue that autonomous timing allows a trial commitment to multicellularity that external signals could extend.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4019345/" 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/PMC4019345/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Norman, Thomas M -- Lord, Nathan D -- Paulsson, Johan -- Losick, Richard -- GM081563/GM/NIGMS NIH HHS/ -- GM18568/GM/NIGMS NIH HHS/ -- R01 GM018568/GM/NIGMS NIH HHS/ -- R01 GM081563/GM/NIGMS NIH HHS/ -- England -- Nature. 2013 Nov 28;503(7477):481-6. doi: 10.1038/nature12804. Epub 2013 Nov 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Department of Systems Biology, Harvard Medical School, Boston, Massachusetts 02115, USA [2].〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24256735" target="_blank"〉PubMed〈/a〉
    Keywords: Bacillus subtilis/*cytology/genetics/*physiology ; Models, Biological ; Movement ; Phenotype ; Stochastic Processes ; 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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