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Dsra RNA Regulates Translation of Rpos Message by an Anti-Antisense Mechanism, Independent of Its Action As an Antisilencer of Transcription
Proc. Natl. Acad. Sci. USA Vol. 95, pp. 12462–12467, October 1998 Genetics DsrA RNA regulates translation of RpoS message by an anti-antisense mechanism, independent of its action as an antisilencer of transcription NADIM MAJDALANI†,CHRISTOFER CUNNING‡,DARREN SLEDJESKI§,TOM ELLIOTT‡, AND SUSAN GOTTESMAN†¶ †Laboratory of Molecular Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892; §Department of Microbiology and Immunology, Medical College of Ohio, Toledo, OH 43614; and ‡Department of Microbiology and Immunology, West Virginia University Health Sciences Center, Morgantown, WV 26506 Contributed by Susan Gottesman, August 19, 1998 ABSTRACT DsrA RNA regulates both transcription, by MATERIALS AND METHODS overcoming transcriptional silencing by the nucleoid- Bacterial Strains. Unless otherwise noted, strains were associated H-NS protein, and translation, by promoting effi- 1 D cient translation of the stress s factor, RpoS. These two derivatives of either NM22180 (dsrA ) or NM22181 ( dsrA). activities of DsrA can be separated by mutation: the first of These isogenic strains, derived by P1 transduction from three stem-loops of the 85 nucleotide RNA is necessary for SG20250 (3), carry deletions of the lac operon and of the ara RpoS translation but not for anti-H-NS action, while the region, introduced from LMG194 (4). The dsrA deletion was introduced by P1 transduction from strain DDS719, selecting second stem-loop is essential for antisilencing and less critical R for RpoS translation. The third stem-loop, which behaves as for the linked Tet marker and screened by PCR as described a transcription terminator, can be substituted by the trp previously (2). The various rpoS-lac fusions were constructed transcription terminator without loss of either DsrA function. -
Curriculum Vitae
Robin W. Morgan, Ph.D. Professor, Department of Animal and Food Sciences Delaware Biotechnology Institute 15 Innovation Way University of Delaware Newark, DE 19716-2103 (302) 383-4806 (phone) Email: [email protected] EDUCATION • Meredith College, Raleigh, North Carolina, B.S., Biology, 1977 • The Johns Hopkins University, Baltimore, Maryland, Ph.D., Biology, 1982 • University of California, Berkeley, California, Post-doctoral fellow, Biochemistry, 1982-1985 PROFESSIONAL EXPERIENCE • Dean and Director of the Agricultural Experiment Station, College of Agriculture and Natural Resources, University of Delaware, July 2002-July 2012 • Acting Dean, Director of the Agricultural Experiment Station, and Director of Cooperative Extension, College of Agriculture and Natural Resources, University of Delaware, July 2001-June 2002 • Associate Dean for Research and Associate Director of the Agricultural Experiment Station, College of Agriculture and Natural Resources, University of Delaware, 2000- 2001 • Professor, Department of Animal and Food Sciences, University of Delaware, Newark, DE; 1996-present • Joint appointment in the Department of Chemistry and Biochemistry, University of Delaware, 1993-present • Joint appointment in the Department of Biology, University of Delaware, 1990- present • Assistant Department Chairperson, Department of Animal and Food Sciences, University of Delaware, Newark, DE, 1992-2000 • Associate Professor, Department of Animal and Food Sciences, University of Delaware, Newark, DE, 1991-1996 • Assistant Professor, Department -
Are You Suprised ?
F.M. Ausubel -- CV -- December 14, 2005 -- page - 1 FREDERICK MICHAEL AUSUBEL CURRICULUM VITAE BIRTH DATE: September 2, 1945 CITIZENSHIP: U.S.A. CONTACT INFORMATION: Department of Molecular Biology Richard B. Simches Research Building 185 Cambridge Street Massachusetts General Hospital Boston, MA 02114 Phone: 617-726-5969 FAX: 617-726-5949 Email: [email protected] PRESENT POSITIONS: Professor of Genetics, Department of Genetics, Harvard Medical School. Molecular Biologist, Department of Molecular Biology, Massachusetts General Hospital. EDUCATION: 1. Massachusetts Institute of Technology, Cambridge, Massachusetts. Ph.D. in Biology, 1972. 2. University of Illinois, Urbana, Illinois. B.S. in Chemistry, 1966. RESEARCH EXPERIENCE: 1. September 1, 1982 to present: Professor of Genetics, Harvard Medical School, Department of Molecular Biology, Massachusetts General Hospital, Boston, Massachusetts. Molecular genetics of nitrogen fixation genes; molecular genetics of Arabidopsis thaliana; molecular genetics of host-pathogen interactions. 2. September 1, 1975 to August 31, 1982: Assistant and Associate Professor of Biology, Department of Cellular and Developmental Biology, Harvard University. Molecular genetics of nitrogen fixation genes in Klebsiella pneumoniae and Rhizobium meliloti. 3. January 1, 1974 to September 1, 1975: Postdoctoral Research Fellow, Harvard University and Universities of Leicester and Sussex. Molecular genetics of nitrogen fixation genes; Somatic cell genetics of Arabidopsis thaliana. 4. 1972 and 1973: Instructor and Research Associate, M.I.T. Molecular genetic analysis of nitrogen fixation genes in Klebsiella pneumoniae. 5. 1966 to 1971: Graduate Student, M.I.T. Purification and properties of bacteriophage lambda integrase. Thesis supervisor: Dr. Ethan Signer. 6. 1964 to 1965: Undergraduate Senior Thesis, University of Illinois. Purification and properties of borneol dehydrogenase. -
The Science of Stress
The Scientist : The Science of Stress http://www.the-scientist.com/article/print/55118/ The Scientist Volume 22 | Issue 11 | Page 54 By Karen Hopkin The Science of Stress NIH's Gisela Storz has spent her career drilling down to the core of questions such as how bacteria respond to oxidants - work that has taken her in some unexpected directions. Her initial model was deceptively simple. As a graduate student exploring Escherichia coli's response to oxidative stress, Gisela "Gigi" Storz proposed that a protein called OxyR interacts directly with potentially destructive oxidants, such as hydrogen peroxide, and then switches on the genes needed to neutralize the threat. However, her colleagues were not impressed. "We thought her hypothesis was naïve," says James Imlay of the University of Illinois, who was a fellow student at the University of California, Berkeley at the time. "She was suggesting that this protein could directly © Jason Varney | Varneyphoto.com sense hydrogen peroxide and then bind to DNA and act as a transcriptional regulator―that a single protein did the whole job. There was just no precedent." At a practice run of the talk that Storz was to present to her thesis committee as part of her preliminary exam, Imlay says, "we just tore her apart. In the time-honored, senior grad-student style, we criticized her up one side and down the other." 1 of 5 11/26/08 8:24 AM The Scientist : The Science of Stress http://www.the-scientist.com/article/print/55118/ Related Articles Making Pretty Pictures 2008 Lasker Awards announced MicroRNAs: An emerging portrait Of course, "Gigi passed her exam," he says.