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Kagan O, Connor M, McGrow K. Nurses' Evolving Role in Informatics During the Digital Transformation Era. Comput Inform Nurs 2024; 42:11-13. [PMID: 38194510 DOI: 10.1097/cin.0000000000001092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Affiliation(s)
- Olga Kagan
- Author Affiliations: The Barbara H. Hagan School of Nursing and Health Sciences, Rockville Centre, NY (Dr Kagan); CUNY School of Professional Studies, New York, NY (Dr Kagan); Memorial Sloan Kettering Cancer Center, New York, NY (Ms Connor); and Microsoft, Redmond WA (Dr McGrow)
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Kagan O, Connor M, Serwicki V. The Impact of Leadership on the Continued Growth of the Nursing, Informatics Community in New York State and Beyond. Comput Inform Nurs 2023; 41:635-638. [PMID: 37683627 DOI: 10.1097/cin.0000000000001074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Affiliation(s)
- Olga Kagan
- The Barbara H. Hagan School of Nursing and Health Sciences (Dr Kagan); CUNY School of Professional Studies (Dr Kagan); Memorial Sloan Kettering Cancer Center (Ms Connor); and Fidelis Care (Ms Serwicki), New York
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Markova D, Kagan O, Hoopmann M, Abele H, Coughlan C, Abecia E, Fatemi HM, Lawrenz B. Impact of preimplantation genetic testing for aneuploidies (PGT-A) on first trimester biochemical markers - PAPP-A (placenta-associated plasma protein) and free β-hCG (human chorionic gonadotropin). J Matern Fetal Neonatal Med 2021; 35:6097-6103. [PMID: 33823722 DOI: 10.1080/14767058.2021.1906857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE The objective of the study was to study the effect of preimplantation genetic testing for aneuploidies (PGT-A) performed at blastocyst stage on the levels of first trimester biomarkers. METHODS This is an observational, collaborative, retrospective study. Seven hundred and twenty-eight patients were included in the study. Patients were with singleton pregnancies resulting from either natural conception (NC), or assisted reproductive techniques (ARTs) with PGT-A and frozen embryo transfer (FET) (ART/PGT-A/FET) or after ART without PGT-A and fresh ET (ART/no PGT-A/fresh ET) or FET (ART/no PGT-A/FET), who had first trimester combined screening test between 11 and 14 gestational weeks. They were stratified into four groups: group A (ART/PGT-A/FET) - 143 patients; group B (ART/no PGT-A/FET) - 100 patients; group C (ART/no PGT-A/fresh ET) - 346 patients, and group D (NC) - 139 patients. RESULTS Statistically significant differences among the examined groups were observed for maternal age, BMI, ethnicity, and parity. The median placenta-associated plasma protein (PAPP-A) was lowest in the group with ART/PGT-A/FET and the highest result was obtained in the group with ART/no PGT-A/FET. Statistically significant difference in the median PAPP-A levels was identified among the examined groups (p = .0186). When a subgroup analysis was performed, a statistically significant difference was observed in the median PAPP-A between ART/PGT-A/FET group versus ART/no PGT-A/FET group (p = .01) and NC versus ART/no PGT-A/FET (p = .01). A similar trend toward statistical significance was noted when comparing NC versus ART/no PGT-A/fresh ET (p = .06). Multivariate analysis elucidated that when age is present in the model, the effect of any method of conception or testing for aneuploidy disappears. The other factors (BMI, ethnicity, and parity) do not influence the levels of PAPP-A. The lowest median free human chorionic gonadotropin (β-HCG) was recorded in the NC group and the highest result was identified in the group with IVF/PGT-A/FET. No statistically significant difference was observed in the median concentration levels of free β-hCG among the compared groups (p = .5789) and when subgroup analysis was performed (p>.05). The normality of the distribution of variables was analyzed by the Kolmogorov-Smirnov test and the median PAPP-A and free βhCG concentration difference by the Wilcoxon rank-sum test with nonparametric ANOVA. CONCLUSIONS Testing for aneuploidy (PGT-A) and the decision to transfer either fresh or cryopreserved embryos (ET) appear not to affect the levels of first trimester biochemical markers. The findings of the present study should be a baseline for future studies and could be used to improve the antenatal screening counseling for women with ART pregnancies and PGT-A.
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Affiliation(s)
- D Markova
- Fetal Medicine Unit, ART Fertility Clinics, Abu Dhabi, United Arab Emirates
| | - O Kagan
- Department of Feto-Maternal Medicine, Women's University Hospital Tuebingen, Tuebingen, Germany
| | - M Hoopmann
- Department of Feto-Maternal Medicine, Women's University Hospital Tuebingen, Tuebingen, Germany
| | - H Abele
- Department of Feto-Maternal Medicine, Women's University Hospital Tuebingen, Tuebingen, Germany
| | - C Coughlan
- IVF Department, ART Fertility Clinics, Dubai, United Arab Emirates
| | - E Abecia
- Fetal Medicine Unit, ART Fertility Clinics, Abu Dhabi, United Arab Emirates
| | - H M Fatemi
- IVF Department, ART Fertility Clinics, Abu Dhabi, United Arab Emirates
| | - B Lawrenz
- IVF Department, ART Fertility Clinics, Abu Dhabi, United Arab Emirates.,Obstetrics Department, Women's University Hospital Tuebingen, Tuebingen, Germany
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Kagan O. Factors associated with college students' willingness and readiness to act in a food allergic emergency (WilRAFAE). J Am Coll Health 2020; 68:484-493. [PMID: 30908144 DOI: 10.1080/07448481.2019.1577868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 12/07/2018] [Accepted: 01/29/2019] [Indexed: 06/09/2023]
Abstract
Objective: Food allergies are on the rise in the U.S. Factors associated with willingness and readiness to act in a food allergic emergency on a college campus are currently unknown. Participants: College students in one Catholic college enrolled during spring of 2017. Methods: A previously piloted survey was distributed by e-mail. Results: Four hundred seventy-four individuals responded. All readiness components correlated, and all willingness components correlated with each other. Age, having children, college major had statistically significant correlations with readiness and willingness to act. Readiness was highly predictive of willingness to act in an FAE. Thirty-five percent of variability in willingness to act was explained by age, being health professions students, desire to be trained, social desirability, and readiness. Students in nonhealth related majors expressed high willingness, but low readiness. Conclusion: A pool of willing, trained to act individuals should be considered on college campuses including availability of unassigned epinephrine auto-injector.
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Affiliation(s)
- Olga Kagan
- Rockville Centre, Molloy College, New York, USA
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Kagan O. Factors Associated With College Students' Willingness And Readiness to Act in a Food Allergic Emergency (WilRAFAE). J Allergy Clin Immunol 2019. [DOI: 10.1016/j.jaci.2018.12.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kagan O. Development of a measure to assess factors associated with college students’ Willingness and Readiness to Act in a Food Allergic Emergency (WilRAFAE): A pilot. Cogent Psychology 2018. [DOI: 10.1080/23311908.2018.1549006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Olga Kagan
- Rockville Centre, Molloy College, New York, USA
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Jacobi J, Schleger F, Preissl H, Mat Husin H, Pauluschke-Fröhlich J, Brändle J, Kagan O, Brucker SY, Kiefer-Schmidt I. Fetale Verhaltensstadien und Hirnantworten unter Lichtstimulation, Tonstimulation und in Ruhe – eine fMKG- Studie. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1671174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- J Jacobi
- Eberhard Karls Universität, Tübingen, Deutschland
- fMEG-Zentrum, Tübingen, Deutschland
| | - F Schleger
- fMEG-Zentrum, Tübingen, Deutschland
- Institut für Diabetesforschung und Stoffwechselerkrankungen, Helmholtz-Zentrum München, Universität Tübingen, Tübingen, Deutschland
- Deutsches Zentrum für Diabetesforschung (DZD), Tübingen, Deutschland
| | - H Preissl
- fMEG-Zentrum, Tübingen, Deutschland
- Institut für Diabetesforschung und Stoffwechselerkrankungen, Helmholtz-Zentrum München, Universität Tübingen, Tübingen, Deutschland
- Deutsches Zentrum für Diabetesforschung (DZD), Tübingen, Deutschland
| | - H Mat Husin
- fMEG-Zentrum, Tübingen, Deutschland
- Universitätsklinik für Innere Medizin, Eberhard Karls Universität, Abteilung für Endokrinologie, Diabetologie, Angiologie, Nephrologie und Klinische Chemie, Tübingen, Deutschland
| | - J Pauluschke-Fröhlich
- fMEG-Zentrum, Tübingen, Deutschland
- Universitätsfrauenklinik Tübingen, Tübingen, Deutschland
| | - J Brändle
- Universitätsfrauenklinik Tübingen, Tübingen, Deutschland
| | - O Kagan
- Universitätsfrauenklinik Tübingen, Tübingen, Deutschland
| | - SY Brucker
- Universitätsfrauenklinik Tübingen, Tübingen, Deutschland
| | - I Kiefer-Schmidt
- fMEG-Zentrum, Tübingen, Deutschland
- Universitätsfrauenklinik Tübingen, Tübingen, Deutschland
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Mustafa SS, Russell AF, Kagan O, Kao LM, Houdek DV, Smith BM, Wang J, Gupta RS. Parent perspectives on school food allergy policy. BMC Pediatr 2018; 18:164. [PMID: 29753332 PMCID: PMC5948763 DOI: 10.1186/s12887-018-1135-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 04/30/2018] [Indexed: 11/24/2022] Open
Abstract
Background Food allergy affects up to 8% of children in the U.S. There is minimal research to date on food allergy policies that are currently in place in schools and the opinions of parents of children with food allergy on the effectiveness of or need for these policies. Methods An electronic survey was disseminated to parents of children with food allergy. Frequencies were calculated to describe respondent characteristics and responses. Chi-square tests were performed to examine associations between school and child characteristics and outcomes. Results Of the 289 parent respondents, 27.4% were unsure or felt school was unsafe for their child with food allergy. While the majority felt that the polices in their child’s school were helpful, most also believed that implementation of additional polices was necessary, including availability of stock epinephrine (94.2%), lunch menus with allergen information (86%), ingredient labels on food items (81%), and direct food allergy education for students (86%). There were significant differences in school food allergy policy depending on the age of the student body, private versus public school, and geographic location. Conclusions While most schools reportedly have one or more food allergy policies in place, many parents have concerns over the safety of their child at school and feel that additional policies are necessary to improve the safety of the school environment for children with food allergy. The availability of stock epinephrine, improved allergen labeling of food and menus and increased food allergy education may be key policy areas on which to focus.
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Affiliation(s)
- S Shahzad Mustafa
- Rochester Regional Health, Rochester, NY, USA.,University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Anne F Russell
- Food Allergy & Anaphylaxis Michigan Association, Ann Arbor, MI, USA
| | - Olga Kagan
- Molloy College, Rockville Centre, New York, USA
| | - Lauren M Kao
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Diane V Houdek
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Bridget M Smith
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA.,Center of Innovation for Complex Chronic Healthcare, Edward J. Hines, Jr. Veterans Affairs Hospital, Hines, IL, USA
| | - Julie Wang
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ruchi S Gupta
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA. .,Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA. .,Center for Community Health, Northwestern University Feinberg School of Medicine, 750 N Lake Shore Dr., 6th Floor, Chicago, IL, 60611, USA.
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Phanse S, Wan C, Borgeson B, Tu F, Drew K, Clark G, Xiong X, Kagan O, Kwan J, Bezginov A, Chessman K, Pal S, Cromar G, Papoulas O, Ni Z, Boutz DR, Stoilova S, Havugimana PC, Guo X, Malty RH, Sarov M, Greenblatt J, Babu M, Derry WB, Tillier ER, Wallingford JB, Parkinson J, Marcotte EM, Emili A. Proteome-wide dataset supporting the study of ancient metazoan macromolecular complexes. Data Brief 2015; 6:715-21. [PMID: 26870755 PMCID: PMC4738005 DOI: 10.1016/j.dib.2015.11.062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 11/17/2015] [Accepted: 11/23/2015] [Indexed: 01/08/2023] Open
Abstract
Our analysis examines the conservation of multiprotein complexes among metazoa through use of high resolution biochemical fractionation and precision mass spectrometry applied to soluble cell extracts from 5 representative model organisms Caenorhabditis elegans, Drosophila melanogaster, Mus musculus, Strongylocentrotus purpuratus, and Homo sapiens. The interaction network obtained from the data was validated globally in 4 distant species (Xenopus laevis, Nematostella vectensis, Dictyostelium discoideum, Saccharomyces cerevisiae) and locally by targeted affinity-purification experiments. Here we provide details of our massive set of supporting biochemical fractionation data available via ProteomeXchange (PXD002319-PXD002328), PPIs via BioGRID (185267); and interaction network projections via (http://metazoa.med.utoronto.ca) made fully accessible to allow further exploration. The datasets here are related to the research article on metazoan macromolecular complexes in Nature [1].
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Affiliation(s)
- Sadhna Phanse
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Cuihong Wan
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada; Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, USA
| | - Blake Borgeson
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Fan Tu
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, USA
| | - Kevin Drew
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, USA
| | - Greg Clark
- Department of Medical Biophysics, Toronto, Ontario, Canada
| | - Xuejian Xiong
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada; Hospital for Sick Children, Toronto, Ontario, Canada
| | - Olga Kagan
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Julian Kwan
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada; Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | | | - Kyle Chessman
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada; Hospital for Sick Children, Toronto, Ontario, Canada
| | - Swati Pal
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada; Hospital for Sick Children, Toronto, Ontario, Canada
| | - Graham Cromar
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada; Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ophelia Papoulas
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, USA
| | - Zuyao Ni
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Daniel R Boutz
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, USA
| | - Snejana Stoilova
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Pierre C Havugimana
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Xinghua Guo
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada
| | - Ramy H Malty
- Department of Biochemistry, University of Regina, Regina, Saskatchewan, Canada
| | - Mihail Sarov
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Jack Greenblatt
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada; Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Mohan Babu
- Department of Biochemistry, University of Regina, Regina, Saskatchewan, Canada
| | - W Brent Derry
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada; Hospital for Sick Children, Toronto, Ontario, Canada
| | | | - John B Wallingford
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, USA; Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, USA
| | - John Parkinson
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada; Hospital for Sick Children, Toronto, Ontario, Canada
| | - Edward M Marcotte
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, USA; Department of Molecular Biosciences, University of Texas at Austin, Austin, TX, USA
| | - Andrew Emili
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario, Canada; Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
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Wan C, Borgeson B, Phanse S, Tu F, Drew K, Clark G, Xiong X, Kagan O, Kwan J, Bezginov A, Chessman K, Pal S, Cromar G, Papoulas O, Ni Z, Boutz DR, Stoilova S, Havugimana PC, Guo X, Malty RH, Sarov M, Greenblatt J, Babu M, Derry WB, Tillier ER, Wallingford JB, Parkinson J, Marcotte EM, Emili A. Panorama of ancient metazoan macromolecular complexes. Nature 2015; 525:339-44. [PMID: 26344197 PMCID: PMC5036527 DOI: 10.1038/nature14877] [Citation(s) in RCA: 353] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 06/30/2015] [Indexed: 12/21/2022]
Abstract
Macromolecular complexes are essential to conserved biological processes, but their prevalence across animals is unclear. By combining extensive biochemical fractionation with quantitative mass spectrometry, we directly examined the composition of soluble multiprotein complexes among diverse metazoan models. Using an integrative approach, we then generated a draft conservation map consisting of >1 million putative high-confidence co-complex interactions for species with fully sequenced genomes that encompasses functional modules present broadly across all extant animals. Clustering revealed a spectrum of conservation, ranging from ancient Eukaryal assemblies likely serving cellular housekeeping roles for at least 1 billion years, ancestral complexes that have accrued contemporary components, and rarer metazoan innovations linked to multicellularity. We validated these projections by independent co-fractionation experiments in evolutionarily distant species, by affinity-purification and by functional analyses. The comprehensiveness, centrality and modularity of these reconstructed interactomes reflect their fundamental mechanistic significance and adaptive value to animal cell systems.
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Affiliation(s)
- Cuihong Wan
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada.,Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA
| | - Blake Borgeson
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA
| | - Sadhna Phanse
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Fan Tu
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA
| | - Kevin Drew
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA
| | - Greg Clark
- Department of Medical Biophysics, Toronto, Ontario M5G 1L7, Canada
| | - Xuejian Xiong
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Olga Kagan
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Julian Kwan
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | | | - Kyle Chessman
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Swati Pal
- Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Graham Cromar
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Ophelia Papoulas
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA
| | - Zuyao Ni
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Daniel R Boutz
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA
| | - Snejana Stoilova
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Pierre C Havugimana
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Xinghua Guo
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Ramy H Malty
- Department of Biochemistry, University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - Mihail Sarov
- Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
| | - Jack Greenblatt
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Mohan Babu
- Department of Biochemistry, University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - W Brent Derry
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | | | - John B Wallingford
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA.,Department of Molecular Biosciences, University of Texas at Austin, Austin, Texas 78712, USA
| | - John Parkinson
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada.,Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
| | - Edward M Marcotte
- Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, Texas 78712, USA.,Department of Molecular Biosciences, University of Texas at Austin, Austin, Texas 78712, USA
| | - Andrew Emili
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada.,Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada
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Selinsek L, Hauer J, Abele H, Kagan O, Deprest J, Hilcher U, Iglauer F, Haen S, Wallwiener D, Beck V. Maternale Nifedipin-Gabe beeinflusst das fetale Lungenwachstum im Nitrofen-Rattenmodell für die kongenitale Zwerchfellhernie nicht. Z Geburtshilfe Neonatol 2013. [DOI: 10.1055/s-0033-1361475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Kube M, Chernikova TN, Al-Ramahi Y, Beloqui A, Lopez-Cortez N, Guazzaroni ME, Heipieper HJ, Klages S, Kotsyurbenko OR, Langer I, Nechitaylo TY, Lünsdorf H, Fernández M, Juárez S, Ciordia S, Singer A, Kagan O, Egorova O, Alain Petit P, Stogios P, Kim Y, Tchigvintsev A, Flick R, Denaro R, Genovese M, Albar JP, Reva ON, Martínez-Gomariz M, Tran H, Ferrer M, Savchenko A, Yakunin AF, Yakimov MM, Golyshina OV, Reinhardt R, Golyshin PN. Genome sequence and functional genomic analysis of the oil-degrading bacterium Oleispira antarctica. Nat Commun 2013; 4:2156. [PMID: 23877221 PMCID: PMC3759055 DOI: 10.1038/ncomms3156] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Accepted: 06/18/2013] [Indexed: 01/21/2023] Open
Abstract
Ubiquitous bacteria from the genus Oleispira drive oil degradation in the largest environment on Earth, the cold and deep sea. Here we report the genome sequence of Oleispira antarctica and show that compared with Alcanivorax borkumensis--the paradigm of mesophilic hydrocarbonoclastic bacteria--O. antarctica has a larger genome that has witnessed massive gene-transfer events. We identify an array of alkane monooxygenases, osmoprotectants, siderophores and micronutrient-scavenging pathways. We also show that at low temperatures, the main protein-folding machine Cpn60 functions as a single heptameric barrel that uses larger proteins as substrates compared with the classical double-barrel structure observed at higher temperatures. With 11 protein crystal structures, we further report the largest set of structures from one psychrotolerant organism. The most common structural feature is an increased content of surface-exposed negatively charged residues compared to their mesophilic counterparts. Our findings are relevant in the context of microbial cold-adaptation mechanisms and the development of strategies for oil-spill mitigation in cold environments.
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Affiliation(s)
- Michael Kube
- Max-Planck Institute for Molecular Genetics, Berlin-Dahlem D-14195, Germany
- Section Phytomedicine, Department of Crop and Animal Sciences, Humboldt-Universität zu Berlin, Berlin-Dahlem D-14195, Germany
| | - Tatyana N. Chernikova
- Environmental Microbiology Group, HZI—Helmholtz Centre for Infection Research, Braunschweig D-38124, Germany
- School of Biological Sciences, Bangor University, Gwynedd, Wales LL57 2UW, UK
| | | | - Ana Beloqui
- Institute of Catalysis, CSIC, Madrid 28049, Spain
| | | | - María-Eugenia Guazzaroni
- Institute of Catalysis, CSIC, Madrid 28049, Spain
- Departamento de Química, Universidade de São Paulo, Ribeirao Preto 14049 901, Brazil
| | - Hermann J. Heipieper
- Department of Environmental Biotechnology, Helmholtz Centre for Environmental Research-UFZ, Leipzig D-04318, Germany
| | - Sven Klages
- Max-Planck Institute for Molecular Genetics, Berlin-Dahlem D-14195, Germany
| | - Oleg R. Kotsyurbenko
- Environmental Microbiology Group, HZI—Helmholtz Centre for Infection Research, Braunschweig D-38124, Germany
| | - Ines Langer
- Max-Planck Institute for Molecular Genetics, Berlin-Dahlem D-14195, Germany
| | - Taras Y. Nechitaylo
- Environmental Microbiology Group, HZI—Helmholtz Centre for Infection Research, Braunschweig D-38124, Germany
| | - Heinrich Lünsdorf
- Environmental Microbiology Group, HZI—Helmholtz Centre for Infection Research, Braunschweig D-38124, Germany
| | - Marisol Fernández
- Proteomic Facility, National Centre for Biotechnology, CSIC, Madrid 28049, Spain
| | - Silvia Juárez
- Proteomic Facility, National Centre for Biotechnology, CSIC, Madrid 28049, Spain
| | - Sergio Ciordia
- Proteomic Facility, National Centre for Biotechnology, CSIC, Madrid 28049, Spain
| | - Alexander Singer
- The Banting and Best Department of Medical Research, University of Toronto, Toronto, Ontario, Canada M5G 2C4
- Biosciences Division, Midwest Center for Structural Genomics, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Olga Kagan
- The Banting and Best Department of Medical Research, University of Toronto, Toronto, Ontario, Canada M5G 2C4
- Biosciences Division, Midwest Center for Structural Genomics, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Olga Egorova
- Biosciences Division, Midwest Center for Structural Genomics, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Chemical Engineering and Applied Chemistry, C.H. Best Institute University of Toronto, Toronto, Canada M5G 1L6
| | - Pierre Alain Petit
- Department of Chemical Engineering and Applied Chemistry, C.H. Best Institute University of Toronto, Toronto, Canada M5G 1L6
| | - Peter Stogios
- Department of Chemical Engineering and Applied Chemistry, C.H. Best Institute University of Toronto, Toronto, Canada M5G 1L6
| | - Youngchang Kim
- Biosciences Division, Midwest Center for Structural Genomics, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Biosciences Division, Structural Biology Center, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Anatoli Tchigvintsev
- The Banting and Best Department of Medical Research, University of Toronto, Toronto, Ontario, Canada M5G 2C4
| | - Robert Flick
- The Banting and Best Department of Medical Research, University of Toronto, Toronto, Ontario, Canada M5G 2C4
| | - Renata Denaro
- Laboratory of Marine Molecular Microbiology, Institute for Coastal Marine Environment (IAMC), CNR, Messina 98122, Italy
| | - Maria Genovese
- Laboratory of Marine Molecular Microbiology, Institute for Coastal Marine Environment (IAMC), CNR, Messina 98122, Italy
| | - Juan P. Albar
- Proteomic Facility, National Centre for Biotechnology, CSIC, Madrid 28049, Spain
| | - Oleg N. Reva
- Department of Biochemistry, University of Pretoria, Pretoria 0002, South Africa
| | | | - Hai Tran
- School of Biological Sciences, Bangor University, Gwynedd, Wales LL57 2UW, UK
| | | | - Alexei Savchenko
- The Banting and Best Department of Medical Research, University of Toronto, Toronto, Ontario, Canada M5G 2C4
- Biosciences Division, Midwest Center for Structural Genomics, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Chemical Engineering and Applied Chemistry, C.H. Best Institute University of Toronto, Toronto, Canada M5G 1L6
| | - Alexander F. Yakunin
- Department of Chemical Engineering and Applied Chemistry, C.H. Best Institute University of Toronto, Toronto, Canada M5G 1L6
| | - Michail M. Yakimov
- Laboratory of Marine Molecular Microbiology, Institute for Coastal Marine Environment (IAMC), CNR, Messina 98122, Italy
| | - Olga V. Golyshina
- Environmental Microbiology Group, HZI—Helmholtz Centre for Infection Research, Braunschweig D-38124, Germany
- School of Biological Sciences, Bangor University, Gwynedd, Wales LL57 2UW, UK
| | - Richard Reinhardt
- Max-Planck Institute for Molecular Genetics, Berlin-Dahlem D-14195, Germany
- Present address: Max-Planck Genome Centre Cologne, Max-Planck Institute for Plant Breeding Research, Cologne D-50829, Germany
| | - Peter N. Golyshin
- Environmental Microbiology Group, HZI—Helmholtz Centre for Infection Research, Braunschweig D-38124, Germany
- School of Biological Sciences, Bangor University, Gwynedd, Wales LL57 2UW, UK
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Babu M, Kagan O, Guo H, Greenblatt J, Emili A. Identification of protein complexes in Escherichia coli using sequential peptide affinity purification in combination with tandem mass spectrometry. J Vis Exp 2012:4057. [PMID: 23168686 DOI: 10.3791/4057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Since most cellular processes are mediated by macromolecular assemblies, the systematic identification of protein-protein interactions (PPI) and the identification of the subunit composition of multi-protein complexes can provide insight into gene function and enhance understanding of biological systems(1, 2). Physical interactions can be mapped with high confidence vialarge-scale isolation and characterization of endogenous protein complexes under near-physiological conditions based on affinity purification of chromosomally-tagged proteins in combination with mass spectrometry (APMS). This approach has been successfully applied in evolutionarily diverse organisms, including yeast, flies, worms, mammalian cells, and bacteria(1-6). In particular, we have generated a carboxy-terminal Sequential Peptide Affinity (SPA) dual tagging system for affinity-purifying native protein complexes from cultured gram-negative Escherichia coli, using genetically-tractable host laboratory strains that are well-suited for genome-wide investigations of the fundamental biology and conserved processes of prokaryotes(1, 2, 7). Our SPA-tagging system is analogous to the tandem affinity purification method developed originally for yeast(8, 9), and consists of a calmodulin binding peptide (CBP) followed by the cleavage site for the highly specific tobacco etch virus (TEV) protease and three copies of the FLAG epitope (3X FLAG), allowing for two consecutive rounds of affinity enrichment. After cassette amplification, sequence-specific linear PCR products encoding the SPA-tag and a selectable marker are integrated and expressed in frame as carboxy-terminal fusions in a DY330 background that is induced to transiently express a highly efficient heterologous bacteriophage lambda recombination system(10). Subsequent dual-step purification using calmodulin and anti-FLAG affinity beads enables the highly selective and efficient recovery of even low abundance protein complexes from large-scale cultures. Tandem mass spectrometry is then used to identify the stably co-purifying proteins with high sensitivity (low nanogram detection limits). Here, we describe detailed step-by-step procedures we commonly use for systematic protein tagging, purification and mass spectrometry-based analysis of soluble protein complexes from E. coli, which can be scaled up and potentially tailored to other bacterial species, including certain opportunistic pathogens that are amenable to recombineering. The resulting physical interactions can often reveal interesting unexpected components and connections suggesting novel mechanistic links. Integration of the PPI data with alternate molecular association data such as genetic (gene-gene) interactions and genomic-context (GC) predictions can facilitate elucidation of the global molecular organization of multi-protein complexes within biological pathways. The networks generated for E. coli can be used to gain insight into the functional architecture of orthologous gene products in other microbes for which functional annotations are currently lacking.
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Affiliation(s)
- Mohan Babu
- Banting and Best Department of Medical Research, Donnelly Centre, University of Toronto, Toronto, Canada
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Hahn M, Fischbach E, Kagan O, Fehm T, Wallwiener D, Gruber I. 2 Vakuumbiopsiesysteme der Brust im Vergleich: Mammotome vs. ATEC. Geburtshilfe Frauenheilkd 2008. [DOI: 10.1055/s-0028-1088974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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