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Rother D, Gehron J, Brenck F, Hudel H, Böning A, Wenzel F. Influence of Covid-19 disease on hemostasis dynamics during extracorporeal membrane oxygenation (ECMO)1. Clin Hemorheol Microcirc 2024:CH229105. [PMID: 36502313 DOI: 10.3233/ch-229105] [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: 12/12/2022]
Abstract
INTRODUCTION COVID-19 causes a considerable degradation of pulmonary function to the point of an acute respiratory distress syndrome (ARDS). Over the course of the disease the gas exchange capability of the lung can get impaired to such an extent that extracorporeal membrane oxygenation (ECMO) is needed as a life-saving intervention. In patients COVID-19 as well as ECMO may cause severe coagulopathies which manifest themselves in micro and macro thrombosis. Previous studies established D-dimers as a marker for critical thrombosis of the ECMO system while on admission increased D-dimers are associated with a higher mortality in COIVD-19 patients. It is therefore crucial to determine if COVID-19 poses an increased risk of early thrombosis of the vital ECMO system. METHODS 40 patients who required ECMO support were enrolled in a retrospective analysis and assigned into 2 groups. The COVID group consist of 20 COVID-19 patients who required ECMO support (n = 20), whereas 20 ECMO patients without COVID-19 were assigned to the control group. D-dimers, fibrinogen, antithrombin III (AT III), lactate dehydrogenase (LDH) and platelet count were analysed using locally weighted scatterplot smoothing and MANOVAs. RESULTS The analysis of both groups shows highly significant differences in the dynamics of hemostasis. The increase in D-dimers that is associated with thrombosis of the ECMO systems occurs in COVID-19 patients around 2 days earlier (p = 2,8115 10-11) while fibrinogen is consumed steadily. In the control group fibrinogen levels increase rapidly after ten days with a plateau phase of around five days (p = 1,407 10-3) . Both groups experience a rapid increase in AT III after start of support by ECMO (p = 5,96 10-15). In the COVID group platelet count decreased from 210 giga/l to 130 giga/l within eight days, while in the same time span in the control group platelets decreased from 180 giga/l to 105 giga/l (p = 1,1 10-15). In both groups a marked increase in LDH beyond 5000 U/l occurs (p = 3,0865 10-15). CONCLUSION The early increase in D-dimers and decrease in fibrinogen suggests that COVID-19 patients bear an increased risk of early thrombosis of the ECMO system compared to other diseases treated with ECMO. Additionally, the control group shows signs of severe inflammation 10 days after the start of ECMO which were absent in COVID-19 patients.
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Affiliation(s)
- D Rother
- Universitätsklinikum Gießen und Marburg GmbH, Klinik für Herz-, Kinderherz- und Gefäßchirurgie, Gießen, Germany
- Hochschule Furtwangen, Medical and Life Sciences, Villingen-Schwenningen, Germany
| | - J Gehron
- Universitätsklinikum Gießen und Marburg GmbH, Klinik für Herz-, Kinderherz- und Gefäßchirurgie, Gießen, Germany
- Justus-Liebig-Unviersität Gießen, Germany
| | - F Brenck
- Universitätsklinikum Gießen und Marburg GmbH, Klinik für Herz-, Kinderherz- und Gefäßchirurgie, Gießen, Germany
| | - H Hudel
- Justus-Liebig-Unviersität Gießen, Germany
| | - A Böning
- Universitätsklinikum Gießen und Marburg GmbH, Klinik für Herz-, Kinderherz- und Gefäßchirurgie, Gießen, Germany
- Justus-Liebig-Unviersität Gießen, Germany
| | - F Wenzel
- Hochschule Furtwangen, Medical and Life Sciences, Villingen-Schwenningen, Germany
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Töpfer NF, Schön L, Jakob E, Hillebrand MC, Reichertz J, Rother D, Weise L, Wilz G. Sounds of Difference: A Typology of Reactions of People with Dementia to Individualized Music in the Presence of a Monitoring Person. Gerontologist 2023:gnad171. [PMID: 38127309 DOI: 10.1093/geront/gnad171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Despite promising effects of individualized music listening (IML) for people with dementia, the individualized nature and heterogeneity of reactions to IML remain underexplored. We aimed to develop an empirically derived typology of directly observed reactions of people with dementia to IML and propose recommendations for tailoring the intervention to the respective types. RESEARCH DESIGN AND METHODS An ideal-type analysis was conducted on 108 video recordings of 45 people with mainly severe dementia (78% female, mean age of 83.02 years, all white participants) listening to recorded individualized music. Dimensions were identified for capturing similarities and differences between types. RESULTS The analysis yielded 10 types of reactions ("expressing and sharing joy", "self-disclosure stimulated by music", "concentrated, absorbed listening", "blissful enjoyment", "experience of the music as bittersweet", "sharing memories", "releasing tension", "tensing up and rejecting", "predominant search for social exchange", "no interpretable reaction") and 3 dimensions ("valence" from negative to positive, "arousal" from calm to activated, "communicative activity" from defensive/ resistant to proactive), resulting in a three-dimensional coordinate system, providing a holistic representation and facilitating a systematic contrast of identified reaction types to IML. DISCUSSION AND IMPLICATIONS Reactions to IML were influenced by the interaction with the project staff, who monitored the sessions. Based on these observations, we propose recommendations for tailoring both the behavior of the monitoring person (e.g., engaging in synchronous activities like clapping along) and the setup of the intervention (e.g., communal vs. individual listening) to each type, which may improve the effects of IML.
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Affiliation(s)
- Nils F Töpfer
- Department of Counseling and Clinical Intervention, Institute of Psychology, Friedrich-Schiller-University Jena, Jena, Thuringia, Germany
| | - Lisa Schön
- Department of Counseling and Clinical Intervention, Institute of Psychology, Friedrich-Schiller-University Jena, Jena, Thuringia, Germany
- Department of Musicology Weimar-Jena, University of Music Franz Liszt Weimar, Weimar, Thuringia, Germany
| | - Elisabeth Jakob
- Department of Counseling and Clinical Intervention, Institute of Psychology, Friedrich-Schiller-University Jena, Jena, Thuringia, Germany
| | - Mareike C Hillebrand
- Department of Counseling and Clinical Intervention, Institute of Psychology, Friedrich-Schiller-University Jena, Jena, Thuringia, Germany
| | - Jo Reichertz
- Institute for Advanced Study in the Humanities (KWI), Essen, North Rhine-Westphalia, Germany
| | - Doreen Rother
- Department of Counseling and Clinical Intervention, Institute of Psychology, Friedrich-Schiller-University Jena, Jena, Thuringia, Germany
| | - Lisette Weise
- Department of Counseling and Clinical Intervention, Institute of Psychology, Friedrich-Schiller-University Jena, Jena, Thuringia, Germany
| | - Gabriele Wilz
- Department of Counseling and Clinical Intervention, Institute of Psychology, Friedrich-Schiller-University Jena, Jena, Thuringia, Germany
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Allahham M, Rother D, Spöring JD, Wiesenthal J, Klankermayer J, Pfennig V, Bolm C, Graf von Westrap W, Jupke A, Siegert P. Integration of adaptive syntheses in the sustainable production of biofuels and chiral fine chemicals. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255053] [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: 11/11/2022]
Affiliation(s)
- M. Allahham
- Forschungszentrum Jülich Institute of Bio- and Geosciences 1 Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology Worringerweg 1 52056 Aachen Germany
| | - D. Rother
- Forschungszentrum Jülich Institute of Bio- and Geosciences 1 Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology Worringerweg 1 52056 Aachen Germany
| | - J.-D. Spöring
- Forschungszentrum Jülich Institute of Bio- and Geosciences 1 Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology Worringerweg 1 52056 Aachen Germany
| | - J. Wiesenthal
- RWTH Aachen University Institute of Technical and Macromolecular Chemistry Worringerweg 2 52056 Aachen Germany
| | - J. Klankermayer
- RWTH Aachen University Institute of Technical and Macromolecular Chemistry Worringerweg 2 52056 Aachen Germany
| | - V. Pfennig
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 52056 Aachen Germany
| | - C. Bolm
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 52056 Aachen Germany
| | - W. Graf von Westrap
- RWTH Aachen University Fluid Process Engineering (AVT. FVT) Forckenbeckstraße 51 52056 Aachen Germany
| | - A. Jupke
- RWTH Aachen University Fluid Process Engineering (AVT. FVT) Forckenbeckstraße 51 52056 Aachen Germany
| | - P. Siegert
- University of Applied Sciences Aachen Institute of Nano- and Biotechnologies (INB) Heinrich-Mußmann-Str. 1 52428 Jülich Germany
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Doeker M, Jupke A, Mielke K, Kappauf K, Ergezinger P, Sehl T, Rother D, Spöring J, Seibt L, Verma N, Bocola M, Daussmann T. Downstream Processing of an Enzymatic Synthesis of (2
R
,4
R
)‐Pentanediol in Pilot Scale. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255229] [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: 11/05/2022]
Affiliation(s)
- M. Doeker
- RWTH Aachen University Lehrstuhl für Fluidverfahrenstechnik Forckenbeckstr. 51 52074 Aachen Germany
| | - A. Jupke
- RWTH Aachen University Lehrstuhl für Fluidverfahrenstechnik Forckenbeckstr. 51 52074 Aachen Germany
| | - K. Mielke
- RWTH Aachen University Lehrstuhl für Fluidverfahrenstechnik Forckenbeckstr. 51 52074 Aachen Germany
| | - K. Kappauf
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - P. Ergezinger
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - T. Sehl
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - D. Rother
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - J. D. Spöring
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - L. Seibt
- Forschungszentrum Jülich Insitute of Bio-Geosciences, IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 3 52074 Aachen Germany
| | - N. Verma
- Enzymaster Deutschland GmbH Neusser Str. 39 40219 Düsseldorf Germany
| | - M. Bocola
- Enzymaster Deutschland GmbH Neusser Str. 39 40219 Düsseldorf Germany
| | - T. Daussmann
- Enzymaster Deutschland GmbH Neusser Str. 39 40219 Düsseldorf Germany
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5
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Theurer C, Rother D, Pfeiffer K, Wilz G. [Burden experienced by caregiving relatives during the corona pandemic]. Z Gerontol Geriatr 2022; 55:136-142. [PMID: 35166934 PMCID: PMC8852872 DOI: 10.1007/s00391-022-02026-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 01/13/2022] [Indexed: 11/25/2022]
Abstract
Hintergrund Bereits vor der Coronapandemie waren pflegende Angehörige mit einer Vielzahl an Herausforderungen und Belastungen konfrontiert. Erste Onlineerhebungen zeigten eine Zunahme der Pflegebelastung während der Pandemie. Ergänzend hierzu wurde eine Erhebung zu Auswirkungen der Pandemie auf bereits belastete pflegende Angehörige in Deutschland durchgeführt. Methode Im Rahmen einer Evaluationsstudie zu einem gestuften Beratungsansatz für hochbelastete pflegende Angehörige wurden von 165 Pflegenden quantitative und qualitative Daten zum Belastungserleben, zu Ängsten und Wünschen in der Coronapandemie bezüglich der Pflege erhoben. Die Auswertungen erfolgten deskriptiv und mittels qualitativer Inhaltsanalyse. Ergebnisse Von den Angehörigen gaben 26 % starke Ängste an, sich mit SARS-CoV‑2 zu infizieren, 50 % befürchteten, dass die gepflegte Person erkranken könnte. Die Hälfte berichtete deutliche Auswirkungen auf den Pflegealltag (47 %) und nahm eine deutliche Erhöhung der Pflegbelastung (51 %) wahr. Als häufigste negative Auswirkungen auf den Pflegealltag wurden der Ausfall von Pflegedienstleistungen und ein Mangel an Zeit für sich selbst genannt. Dementsprechend wurde am häufigsten der Wunsch nach Unterstützung geäußert. Der Pflegegrad, das Alter der Pflegenden und die vorherige Nutzung des Pflegedienstes erwiesen sich als Prädiktoren für das durch die Pflegenden eingeschätzte Belastungserleben der Erkrankten. Diskussion Die Ergebnisse verdeutlichen die negativen Auswirkungen der Coronapandemie auf die Belastung pflegender Angehöriger eindrücklich. Zur Bewältigung der komplexen Zusatzbelastungen benötigen Angehörige Angebote, die zu deren Teilhabechancen sowie zur Verbesserung der Versorgung und sozialen Teilhabe der Pflegebedürftigen während der Pandemie beitragen.
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Affiliation(s)
- Christina Theurer
- Institut der Psychologie, Abteilung Klinisch-Psychologische Intervention, Friedrich-Schiller-Universität Jena, Semmelweißstr. 12, 07743, Jena, Deutschland.
| | - Doreen Rother
- Institut der Psychologie, Abteilung Klinisch-Psychologische Intervention, Friedrich-Schiller-Universität Jena, Semmelweißstr. 12, 07743, Jena, Deutschland
| | | | - Gabriele Wilz
- Institut der Psychologie, Abteilung Klinisch-Psychologische Intervention, Friedrich-Schiller-Universität Jena, Semmelweißstr. 12, 07743, Jena, Deutschland
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6
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Grabowski L, Mack K, Doeker M, Jupke A, Rother D. Process intensification of the enzymatic cascade to metaraminol with integrated in‐situ liquid‐liquid product removal. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055326] [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: 11/10/2022]
Affiliation(s)
- L. Grabowski
- Forschungszentrum Jülich GmbH Institute of Bio- and Geoscience – Biotechnology (IBG-1) Wilhelm-Johnen-Strasse 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 1 52074 Aachen Germany
| | - K. Mack
- Forschungszentrum Jülich GmbH Institute of Bio- and Geoscience – Biotechnology (IBG-1) Wilhelm-Johnen-Strasse 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 1 52074 Aachen Germany
| | - M. Doeker
- RWTH Aachen University Aachener Verfahrenstechnik – Fluidprocess Engineering (AVT. FVT) Forckenbeckstr. 51 52074 Aachen Germany
| | - A. Jupke
- RWTH Aachen University Aachener Verfahrenstechnik – Fluidprocess Engineering (AVT. FVT) Forckenbeckstr. 51 52074 Aachen Germany
| | - D. Rother
- Forschungszentrum Jülich GmbH Institute of Bio- and Geoscience – Biotechnology (IBG-1) Wilhelm-Johnen-Strasse 52428 Jülich Germany
- RWTH Aachen University Aachen Biology and Biotechnology (ABBt) Worringerweg 1 52074 Aachen Germany
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7
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Gerlach T, Drepper T, Rother D. Light‐induced enzyme deactivation as a new tool to prevent cross reactions in multistep enzyme cascades. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055238] [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: 11/08/2022]
Affiliation(s)
- T. Gerlach
- Forschungszentrum Jülich GmbH IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University ABBt Worringerweg 1 52074 Aachen Germany
| | - T. Drepper
- HHU Düsseldorf IMET Wilhelm-Johnen-Straße 52428 Jülich Germany
| | - D. Rother
- Forschungszentrum Jülich GmbH IBG-1: Biotechnology Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University ABBt Worringerweg 1 52074 Aachen Germany
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8
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Weber D, Neumann A, Winkler M, Turner N, Rother D. Exploring carboxylate reductases to access aldehydes using in vitro and in vivo approaches. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055484] [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: 11/05/2022]
Affiliation(s)
- D. Weber
- Forschungszentrum Jülich IBG-1: Biotechnology Jülich Germany
- RWTH Aachen University, Aachen Germany
| | - A. Neumann
- Forschungszentrum Jülich IBG-1: Biotechnology Jülich Germany
| | | | - N. Turner
- University of Manchester Manchester UK
| | - D. Rother
- Forschungszentrum Jülich IBG-1: Biotechnology Jülich Germany
- RWTH Aachen University, Aachen Germany
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9
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Doeker M, Mack K, Grabowski L, Rother D, Jupke A. Reactive liquid‐liquid extraction as means for shifting the equilibrium in enzymatic aminase reaction systems. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055242] [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: 11/08/2022]
Affiliation(s)
- M. Doeker
- RWTH Aachen University AVT. Fluidverfahrenstechnik Forckenbeckstr. 51 52074 Aachen Germany
| | - K. Mack
- Forschungszentrum Jülich GmbH Institute of Bio- and Geosciences – Biotechnology (IBG-1) 52425 Jülich Germany
| | - L. Grabowski
- Forschungszentrum Jülich GmbH Institute of Bio- and Geosciences – Biotechnology (IBG-1) 52425 Jülich Germany
| | - D. Rother
- Forschungszentrum Jülich GmbH Institute of Bio- and Geosciences – Biotechnology (IBG-1) 52425 Jülich Germany
| | - A. Jupke
- Forschungszentrum Jülich GmbH Institute of Bio- and Geosciences – Biotechnology (IBG-1) 52425 Jülich Germany
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10
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Spöring JD, Blank L, Klankermayer J, Jupke A, Rother D. Synthesis of diols relevant for biofuel production using synthetic enzyme cascades in micro‐aqueous reaction systems. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055018] [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: 11/11/2022]
Affiliation(s)
- J.-D. Spöring
- Forschungszentrum Jülich GmbH Institut für Bio- und Geowissenschaften IBG-1: Biotechnologie Wilhelm-Johnen-Str. 1 52428 Jülich Germany
- RWTH Aachen University Aachener Biologie und Biotechnologie (ABBt) Worringerweg 1 52074 Aachen Germany
| | - L. M. Blank
- RWTH Aachen University Institut für Angewandte Mikrobiologie Worringerweg 1 52056 Aachen Germany
| | - J. Klankermayer
- RWTH Aachen University Aachen Institut für Technische und Makromolekulare Chemie (ITMC) Worringerweg 2 52074 Aachen Germany
| | - A. Jupke
- RWTH Aachen University Aachener Verfahrenstechnik- Fluid process engineering (AVT. FVT) Forckenbeckstraße 51 52074 Aachen Germany
| | - D. Rother
- Forschungszentrum Jülich GmbH Institut für Bio- und Geowissenschaften IBG-1: Biotechnologie Wilhelm-Johnen-Str. 1 52428 Jülich Germany
- RWTH Aachen University Aachener Biologie und Biotechnologie (ABBt) Worringerweg 1 52074 Aachen Germany
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11
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Malzacher S, Range J, Halupczok C, Pleiss J, Rother D. BioCatHub, a graphical user interface for standardized data acquisition in biocatalysis. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- S. Malzacher
- Forschungszentrum Jülich Institute of Bio- and Geosciences (IBG-1) Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology und Biotechnology Worringerweg 1 52074 Aachen Germany
| | - J. Range
- University of Stuttgart Institute of Biochemistry and Technical Biochemistry Allmandring 31 70569 Stuttgart Germnay
| | - C. Halupczok
- University of Stuttgart Institute of Biochemistry and Technical Biochemistry Allmandring 31 70569 Stuttgart Germnay
| | - J. Pleiss
- University of Stuttgart Institute of Biochemistry and Technical Biochemistry Allmandring 31 70569 Stuttgart Germnay
| | - D. Rother
- Forschungszentrum Jülich Institute of Bio- and Geosciences (IBG-1) Wilhelm-Johnen-Straße 52428 Jülich Germany
- RWTH Aachen University Aachen Biology und Biotechnology Worringerweg 1 52074 Aachen Germany
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Claaßen C, Mack K, Rother D. Benchtop NMR for Online Reaction Monitoring of the Biocatalytic Synthesis of Aromatic Amino Alcohols. ChemCatChem 2020; 12:1190-1199. [PMID: 32194875 PMCID: PMC7074048 DOI: 10.1002/cctc.201901910] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/19/2019] [Indexed: 01/25/2023]
Abstract
Online analytics provides insights into the progress of an ongoing reaction without the need for extensive sampling and offline analysis. In this study, we investigated benchtop NMR as an online reaction monitoring tool for complex enzyme cascade reactions. Online NMR was used to monitor a two-step cascade beginning with an aromatic aldehyde and leading to an aromatic amino alcohol as the final product, applying two different enzymes and a variety of co-substrates and intermediates. Benchtop NMR enabled the concentration of the reaction components to be detected in buffered systems in the single-digit mM range without using deuterated solvent. The concentrations determined via NMR were correlated with offline samples analyzed via uHPLC and displayed a good correlation between the two methods. In summary, benchtop NMR proved to be a sensitive, selective and reliable method for online reaction monitoring in (multi-step) biosynthesis. In future, online analytic systems such as the benchtop NMR devices described might not only enable direct monitoring of the reaction, but may also form the basis for self-regulation in biocatalytic reactions.
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Affiliation(s)
- C. Claaßen
- Institute of Bio- and Geosciences – Biotechnology (IBG-1)Forschungszentrum Jülich GmbH52425JülichGermany
| | - K. Mack
- Institute of Bio- and Geosciences – Biotechnology (IBG-1)Forschungszentrum Jülich GmbH52425JülichGermany
- Aachen Biology and Biotechnology (ABBt)RWTH Aachen University52074AachenGermany
| | - D. Rother
- Institute of Bio- and Geosciences – Biotechnology (IBG-1)Forschungszentrum Jülich GmbH52425JülichGermany
- Aachen Biology and Biotechnology (ABBt)RWTH Aachen University52074AachenGermany
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Mack K, Erdmann V, Döbber J, Rother D. Efficient synthesis of chiral amino alcohol using two-step enzyme cascades in repetitive batch mode. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855278] [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: 11/12/2022]
Affiliation(s)
- K. Mack
- Forschungszentrum Jülich GmbH; IBG-1: Biotechnology; Wilhelm-Johnen-Straße 52425 Jülich Germany
| | - V. Erdmann
- Forschungszentrum Jülich GmbH; IBG-1: Biotechnology; Wilhelm-Johnen-Straße 52425 Jülich Germany
| | - J. Döbber
- Forschungszentrum Jülich GmbH; IBG-1: Biotechnology; Wilhelm-Johnen-Straße 52425 Jülich Germany
| | - D. Rother
- Forschungszentrum Jülich GmbH; IBG-1: Biotechnology; Wilhelm-Johnen-Straße 52425 Jülich Germany
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Maßmann T, Oeggl R, Jupke A, Rother D. Process intensification by integrated hydrophobic biocatalysis and product crystallization. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855281] [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: 11/10/2022]
Affiliation(s)
- T. Maßmann
- RWTH Aachen University; AVT.Fluidverfahrenstechnik; Forckenbeckstraße 51 52074 Aachen Deutschland
| | - R. Oeggl
- Forschungszentrum Jülich; IBG-1: Biotechnologie; Wilhelm-Johnen-Straße 52428 Jülich Deutschland
| | - A. Jupke
- RWTH Aachen University; AVT.Fluidverfahrenstechnik; Forckenbeckstraße 51 52074 Aachen Deutschland
| | - D. Rother
- Forschungszentrum Jülich; IBG-1: Biotechnologie; Wilhelm-Johnen-Straße 52428 Jülich Deutschland
- RWTH Aachen University; Synthetische Enzymkaskaden; Forckenbeckstraße 51 52074 Aachen Deutschland
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Gerlach T, Hilgers F, Bitzenhofer N, Drepper T, Rother D. Avoiding cross-reactivities in multistep biocatalysis by light-induced enzyme deactivation. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855327] [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: 11/08/2022]
Affiliation(s)
- T. Gerlach
- Forschungszentrum Jülich GmbH; IBG-1: Biotechnologie; Wilhelm-Johnen-Straße 52428 Jülich Germany
| | - F. Hilgers
- Forschungszentrum Jülich GmbH; IBG-1: Biotechnologie; Wilhelm-Johnen-Straße 52428 Jülich Germany
| | - N. Bitzenhofer
- Forschungszentrum Jülich GmbH; IBG-1: Biotechnologie; Wilhelm-Johnen-Straße 52428 Jülich Germany
| | - T. Drepper
- Forschungszentrum Jülich GmbH; IBG-1: Biotechnologie; Wilhelm-Johnen-Straße 52428 Jülich Germany
| | - D. Rother
- Forschungszentrum Jülich GmbH; IBG-1: Biotechnologie; Wilhelm-Johnen-Straße 52428 Jülich Germany
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16
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Oeggl R, Rother D. Combining Advantages of Nature and Classic Chemistry: Enzymatic Two-Step Synthesis of Anethole-1,2 Diol. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650372] [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: 11/09/2022]
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17
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Rother D, Döbber J, Kloß R, Jäger V, Krauss U, Pohl M. Enzyme Toolboxes & Reaction Engineering - Solutions for Applied Viocatalysis. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650289] [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: 11/12/2022]
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18
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Bock S, Buchholz P, Vogel C, Holzapfel A, Pleiss J, Wiechert W, Pohl M, Rother D. Exploring the Sequence-Function Space of ThDP-Dependent Enzymes. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650376] [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: 11/07/2022]
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19
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Maugeri Z, Rother D. Imine Reductases (IREDs) in Micro-Aqueous Reaction Systems. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650047] [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: 11/06/2022]
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20
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Wiechert W, Rother D. Synthetic Pathways and Synthetic Enzyme Cascades: Two Sides of one Medal? CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650505] [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: 11/10/2022]
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21
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Sehl T, Hailes H, Ward J, Pohl M, Rother D. Enzymatische Kaskadenreaktionen mit ThDP-abhängigen Lyasen und ω-Transaminasen zur nachhaltigen Synthese chiraler Aminoalkohole. CHEM-ING-TECH 2012. [DOI: 10.1002/cite.201250526] [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: 11/06/2022]
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22
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Sehl T, Hailes H, Ward J, Pohl M, Rother D. Enzymatische Kaskadenreaktionen mit ThDP-abhängigen Lyasen und ω-Transaminasen zur nachhaltigen Synthese chiraler Aminoalkohole. CHEM-ING-TECH 2012. [DOI: 10.1002/cite.201290078] [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: 11/12/2022]
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Abstract
We review modelling and experimental work dealing with the mechanisms of generation of electric image. We discuss: (1) the concept of electric image in the context of the reafference principle; (2) how waveform codes an impedance related qualia of the object image, referred to as "electric colour"; (3) that some characteristics of the spatial profiles generated by pre-receptor mechanisms are suitable for edge detection; (4) which parameters of the spatial profiles provide information for distance discrimination; (5) that electric images are distributed representations of the scene.
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Affiliation(s)
- R Budelli
- Sciences Biomatemáitica y Neurociencias, Instituto de Biología, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, Uruguay.
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Rother D, Henrich HJ, Quentmeier A, Bardischewsky F, Friedrich CG. Novel genes of the sox gene cluster, mutagenesis of the flavoprotein SoxF, and evidence for a general sulfur-oxidizing system in Paracoccus pantotrophus GB17. J Bacteriol 2001; 183:4499-508. [PMID: 11443084 PMCID: PMC95344 DOI: 10.1128/jb.183.15.4499-4508.2001] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The novel genes soxFGH were identified, completing the sox gene cluster of Paracoccus pantotrophus coding for enzymes involved in lithotrophic sulfur oxidation. The periplasmic SoxF, SoxG, and SoxH proteins were induced by thiosulfate and purified to homogeneity from the soluble fraction. soxF coded for a protein of 420 amino acids with a signal peptide containing a twin-arginine motif. SoxF was 37% identical to the flavoprotein FccB of flavocytochrome c sulfide dehydrogenase of Allochromatium vinosum. The mature SoxF (42,832 Da) contained 0.74 mol of flavin adenine dinucleotide per mol. soxG coded for a novel protein of 303 amino acids with a signal peptide containing a twin-arginine motif. The mature SoxG (29,657 Da) contained two zinc binding motifs and 0.90 atom of zinc per subunit of the homodimer. soxH coded for a periplasmic protein of 317 amino acids with a double-arginine signal peptide. The mature SoxH (32,317 Da) contained two metal binding motifs and 0.29 atom of zinc and 0.20 atom of copper per subunit of the homodimer. SoxXA, SoxYZ, SoxB, and SoxCD (C. G. Friedrich, A. Quentmeier, F. Bardischewsky, D. Rother, R. Kraft, S. Kostka, and H. Prinz, J. Bacteriol. 182:4476-4487, 2000) reconstitute a system able to perform thiosulfate-, sulfite-, sulfur-, and hydrogen sulfide-dependent cytochrome c reduction, and this system is the first described for oxidizing different inorganic sulfur compounds. SoxF slightly inhibited the rate of hydrogen sulfide oxidation but not the rate of sulfite or thiosulfate oxidation. From use of a homogenote mutant with an in-frame deletion in soxF and complementation analysis, it was evident that the soxFGH gene products were not required for lithotrophic growth with thiosulfate.
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Affiliation(s)
- D Rother
- Lehrstuhl für Technische Mikrobiologie, Fachbereich Chemietechnik, Universität Dortmund, Emil-Figge-Strasse 66, D-44221 Dortmund, Germany
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Friedrich CG, Rother D, Bardischewsky F, Quentmeier A, Fischer J. Oxidation of reduced inorganic sulfur compounds by bacteria: emergence of a common mechanism? Appl Environ Microbiol 2001; 67:2873-82. [PMID: 11425697 PMCID: PMC92956 DOI: 10.1128/aem.67.7.2873-2882.2001] [Citation(s) in RCA: 372] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- C G Friedrich
- Lehrstuhl für Technische Mikrobiologie, Fachbereich Chemietechnik, Universität Dortmund, D-44221 Dortmund, Germany.
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Friedrich CG, Quentmeier A, Bardischewsky F, Rother D, Kraft R, Kostka S, Prinz H. Novel genes coding for lithotrophic sulfur oxidation of Paracoccus pantotrophus GB17. J Bacteriol 2000; 182:4677-87. [PMID: 10940005 PMCID: PMC111341 DOI: 10.1128/jb.182.17.4677-4687.2000] [Citation(s) in RCA: 121] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The gene region coding for lithotrophic sulfur oxidation of Paracoccus pantotrophus GB17 is located on a 13-kb insert of plasmid pEG12. Upstream of the previously described six open reading frames (ORFs) soxABCDEF with a partial sequence of soxA and soxF (C. Wodara, F. Bardischewsky, and C. G. Friedrich, J. Bacteriol. 179:5014-5023, 1997), 4,350 bp were sequenced. The sequence completed soxA, and uncovered six new ORFs upstream of soxA, designated ORF1, ORF2, and ORF3, and soxXYZ. ORF1 could encode a 275-amino-acid polypeptide of 29,332 Da with a 61 to 63% similarity to LysR transcriptional regulators. ORF2 could encode a 245-amino-acid polypeptide of 26,022 Da with the potential to form six transmembrane helices and with a 48 to 51% similarity to proteins involved in redox transport in cytochrome c biogenesis. ORF3 could encode a periplasmic polypeptide of 186 amino acids of 20,638 Da with a similarity to thioredoxin-like proteins and with a putative signal peptide of 21 amino acids. Purified SoxXA, SoxYZ, and SoxB are essential for thiosulfate or sulfite-dependent cytochrome c reduction in vitro. N-terminal and internal amino acid sequences identified SoxX, SoxY, SoxZ, and SoxA to be coded by the respective genes. The molecular masses of the mature proteins determined by electrospray ionization spectroscopy (SoxX, 14,834 Da; SoxY, 11,094 Da; SoxZ, 11,717 Da; and SoxA, 30,452 Da) were identical or close to those deduced from the nucleotide sequence with differences for the covalent heme moieties. SoxXA represents a novel type of periplasmic c-type cytochromes, with SoxX as a monoheme and SoxA as a hybrid diheme cytochrome c. SoxYZ is an as-yet-unprecedented soluble protein. SoxY has a putative signal peptide with a twin arginine motif and possibly cotransports SoxZ to the periplasm. SoxYZ neither contains a metal nor a complex redox center, as proposed for proteins likely to be transported via the Tat system.
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Affiliation(s)
- C G Friedrich
- Lehrstuhl für Technische Mikrobiologie, Universität Dortmund, D-44227 Dortmund, Germany.
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Rother D, Mattes R, Altenbuchner J. Purification and characterization of MerR, the regulator of the broad-spectrum mercury resistance genes in Streptomyces lividans 1326. Mol Gen Genet 1999; 262:154-62. [PMID: 10503547 DOI: 10.1007/s004380051070] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Streptomyces lividans 1326 carries inducible mercury resistance genes on the chromosome, which are arranged in two divergently transcribed operons. Expression of the genes is negatively regulated by the repressor MerR, which binds in the intercistronic region between the two operons. The merR gene was expressed in E. coli using a T7 RNA polymerase/promoter expression system, and MerR was purified to around 95% homogeneity by ammonium sulfate precipitation, gel filtration and affinity chromatography. Gel filtration showed that the native MerR is a dimer with a molecular mass of 31 kDa. Two DNA binding sites were identified in the intercistronic mer promoter region by footprinting experiments. No evidence for cooperativity in the binding of MerR to the adjacent operator sequences was observed in gel mobility shift assays. The dissociation constants (K(D)) for binding of MerR were: binding site I, 8.5 x 10(-9) M; binding site II, 1.2 x 10(-8) M; and for the complete promoter/operator region 1 x 10(-8) M. The half-life of the MerR-DNA complex was 19.4 min and 18.8 min for binding site I and binding site II, respectively. The K(D) value for binding of mercury(II)chloride to MerR, again determined by mobility shift assay, was 1.1 x 10(-7) M.
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Affiliation(s)
- D Rother
- Institut für Industrielle Genetik, Universität Stuttgart , Germany
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Brünker P, Rother D, Sedlmeier R, Klein J, Mattes R, Altenbuchner J. Regulation of the operon responsible for broad-spectrum mercury resistance in Streptomyces lividans 1326. Mol Gen Genet 1996; 251:307-15. [PMID: 8676873 DOI: 10.1007/bf02172521] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The broad-spectrum mercury resistance of Streptomyces lividans 1326 is mediated by six open reading frames (orf). These are arranged in two divergently transcribed operons. The orfs mer A (mercuric reductase) and mer B (organolyase) form one of the two operons. These genes and their regulation were further studied by deletion analysis and transcriptional fusion to the reporter gene xylE in the plasmid pXE4. An increase in XylE activity in response to the presence of mercuric ions was observed. The function of ORF2 (MerT) and ORF3 (MerP) as mercury-specific transport proteins, previously postulated based on the structural features of the predicted proteins, was confirmed. Transcription of the mer genes starts within the intercistronic region and two divergent promoters were identified by S1 nuclease mapping. Expression of the genes was negatively regulated by the product of orf1, now called merR. The repressor function was confirmed by gel retardation assays. MerR, produced in Escherichia coli, bound to two sites (operators) in the fragment containing the promoter region between merA and merR. Addition of mercuric ions and phenylmercuric acetate prevented the binding of MerR.
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Affiliation(s)
- P Brünker
- Institut für Industrielle Genetik, Universität Stuttgart, Germany
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