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Sasse C, Bastakis E, Bakti F, Höfer AM, Zangl I, Schüller C, Köhler AM, Gerke J, Krappmann S, Finkernagel F, Harting R, Strauss J, Heimel K, Braus GH. Induction of Aspergillus fumigatus zinc cluster transcription factor OdrA/Mdu2 provides combined cellular responses for oxidative stress protection and multiple antifungal drug resistance. mBio 2023; 14:e0262823. [PMID: 37982619 PMCID: PMC10746196 DOI: 10.1128/mbio.02628-23] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 10/06/2023] [Indexed: 11/21/2023] Open
Abstract
IMPORTANCE An overexpression screen of 228 zinc cluster transcription factor encoding genes of A. fumigatus revealed 11 genes conferring increased tolerance to antifungal drugs. Out of these, four oxidative stress and drug tolerance transcription factor encoding odr genes increased tolerance to oxidative stress and antifungal drugs when overexpressed. This supports a correlation between oxidative stress response and antifungal drug tolerance in A. fumigatus. OdrA/Mdu2 is required for the cross-tolerance between azoles, polyenes, and oxidative stress and activates genes for detoxification. Under oxidative stress conditions or when overexpressed, OdrA/Mdu2 accumulates in the nucleus and activates detoxifying genes by direct binding at their promoters, as we describe with the mdr1 gene encoding an itraconazole specific efflux pump. Finally, this work gives new insights about drug and stress resistance in the opportunistic pathogenic fungus A. fumigatus.
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Affiliation(s)
- Christoph Sasse
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, University of Göttingen, Göttingen, Germany
| | - Emmanouil Bastakis
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, University of Göttingen, Göttingen, Germany
| | - Fruzsina Bakti
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, University of Göttingen, Göttingen, Germany
| | - Annalena M. Höfer
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, University of Göttingen, Göttingen, Germany
| | - Isabella Zangl
- Department of Applied Genetics and Cell Biology, Institute of Microbial Genetics, University of Natural Resources and Life Sciences, Vienna (BOKU), Campus, Tulln, Austria
- Core Facility Bioactive Molecules–Screening and Analysis, University of Natural Resources and Life Sciences, Vienna (BOKU), Austria
| | - Christoph Schüller
- Department of Applied Genetics and Cell Biology, Institute of Microbial Genetics, University of Natural Resources and Life Sciences, Vienna (BOKU), Campus, Tulln, Austria
- Core Facility Bioactive Molecules–Screening and Analysis, University of Natural Resources and Life Sciences, Vienna (BOKU), Austria
| | - Anna M. Köhler
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, University of Göttingen, Göttingen, Germany
| | - Jennifer Gerke
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, University of Göttingen, Göttingen, Germany
| | - Sven Krappmann
- Institute of Microbiology–Clinical Microbiology, Immunology and Hygiene, University Hospital Erlangen and Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
- Center for Infection Research (ECI) and Medical Immunology Campus Erlangen (MICE), Erlangen, Germany
| | - Florian Finkernagel
- Center for Tumor Biology and Immunology, Core Facility Bioinformatics, Philipps University, Marburg, Germany
| | - Rebekka Harting
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, University of Göttingen, Göttingen, Germany
| | - Joseph Strauss
- Department of Applied Genetics and Cell Biology, Institute of Microbial Genetics, University of Natural Resources and Life Sciences, Vienna (BOKU), Campus, Tulln, Austria
| | - Kai Heimel
- Department of Microbial Cell Biology, Institute of Microbiology and Genetics, Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, Göttingen, Germany
| | - Gerhard H. Braus
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Institute of Microbiology and Genetics, University of Göttingen, Göttingen, Germany
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Bakti F, Stupperich H, Schmitt K, Valerius O, Köhler AM, Meister C, Strohdiek A, Harting R, Sasse C, Heimel K, Neumann P, Ficner R, Braus GH. Fungal COP9 signalosome assembly requires connection of two trimeric intermediates for integration of intrinsic deneddylase. Proc Natl Acad Sci U S A 2023; 120:e2305049120. [PMID: 37603767 PMCID: PMC10477865 DOI: 10.1073/pnas.2305049120] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 08/01/2023] [Indexed: 08/23/2023] Open
Abstract
The conserved eight-subunit COP9 signalosome (CSN) is required for multicellular fungal development. The CSN deneddylase cooperates with the Cand1 exchange factor to control replacements of E3 ubiquitin cullin RING ligase receptors, providing specificity to eukaryotic protein degradation. Aspergillus nidulans CSN assembles through a heptameric pre-CSN, which is activated by integration of the catalytic CsnE deneddylase. Combined genetic and biochemical approaches provided the assembly choreography within a eukaryotic cell for native fungal CSN. Interactomes of functional GFP-Csn subunit fusions in pre-CSN deficient fungal strains were compared by affinity purifications and mass spectrometry. Two distinct heterotrimeric CSN subcomplexes were identified as pre-CSN assembly intermediates. CsnA-C-H and CsnD-F-G form independently of CsnB, which connects the heterotrimers to a heptamer and enables subsequent integration of CsnE to form the enzymatically active CSN complex. Surveillance mechanisms control accurate Csn subunit amounts and correct cellular localization for sequential assembly since deprivation of Csn subunits changes the abundance and location of remaining Csn subunits.
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Affiliation(s)
- Fruzsina Bakti
- Department of Molecular Microbiology and Genetics, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Helena Stupperich
- Department of Molecular Microbiology and Genetics, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Kerstin Schmitt
- Department of Molecular Microbiology and Genetics, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Oliver Valerius
- Department of Molecular Microbiology and Genetics, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Anna M. Köhler
- Department of Molecular Microbiology and Genetics, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Cindy Meister
- Department of Molecular Microbiology and Genetics, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Anja Strohdiek
- Department of Molecular Microbiology and Genetics, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Rebekka Harting
- Department of Molecular Microbiology and Genetics, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Christoph Sasse
- Department of Molecular Microbiology and Genetics, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Kai Heimel
- Department of Microbial Cell Biology, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Piotr Neumann
- Department of Molecular Structural Biology, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Ralf Ficner
- Department of Molecular Structural Biology, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
| | - Gerhard H. Braus
- Department of Molecular Microbiology and Genetics, Institute of Microbiology and Genetics, Goettingen Center for Molecular Biosciences, University of Goettingen, 37077Goettingen, Germany
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Sarikaya Bayram Ö, Bayram Ö, Karahoda B, Meister C, Köhler AM, Thieme S, Elramli N, Frawley D, McGowan J, Fitzpatrick DA, Schmitt K, de Assis LJ, Valerius O, Goldman GH, Braus GH. F-box receptor mediated control of substrate stability and subcellular location organizes cellular development of Aspergillus nidulans. PLoS Genet 2022; 18:e1010502. [PMID: 36508464 PMCID: PMC9744329 DOI: 10.1371/journal.pgen.1010502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 10/31/2022] [Indexed: 12/14/2022] Open
Abstract
Fungal growth and development are coordinated with specific secondary metabolism. This coordination requires 8 of 74 F-box proteins of the filamentous fungus Aspergillus nidulans. F-box proteins recognize primed substrates for ubiquitination by Skp1-Cul1-Fbx (SCF) E3 ubiquitin RING ligases and degradation by the 26S proteasome. 24 F-box proteins are found in the nuclear fraction as part of SCFs during vegetative growth. 43 F-box proteins interact with SCF proteins during growth, development or stress. 45 F-box proteins are associated with more than 700 proteins that have mainly regulatory roles. This corroborates that accurate surveillance of protein stability is prerequisite for organizing multicellular fungal development. Fbx23 combines subcellular location and protein stability control, illustrating the complexity of F-box mediated regulation during fungal development. Fbx23 interacts with epigenetic methyltransferase VipC which interacts with fungal NF-κB-like velvet domain regulator VeA that coordinates fungal development with secondary metabolism. Fbx23 prevents nuclear accumulation of methyltransferase VipC during early development. These results suggest that in addition to their role in protein degradation, F-box proteins also control subcellular accumulations of key regulatory proteins for fungal development.
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Affiliation(s)
| | - Özgür Bayram
- Biology Department, Maynooth University, Maynooth, Co. Kildare, Ireland
- * E-mail: (ÖB); (GHB)
| | - Betim Karahoda
- Biology Department, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Cindy Meister
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
| | - Anna M. Köhler
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
| | - Sabine Thieme
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
| | - Nadia Elramli
- Biology Department, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Dean Frawley
- Biology Department, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Jamie McGowan
- Biology Department, Maynooth University, Maynooth, Co. Kildare, Ireland
| | | | - Kerstin Schmitt
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
| | - Leandro Jose de Assis
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Oliver Valerius
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
| | - Gustavo H. Goldman
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Gerhard H. Braus
- Department of Molecular Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
- * E-mail: (ÖB); (GHB)
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Gerke J, Köhler AM, Wennrich JP, Große V, Shao L, Heinrich AK, Bode HB, Chen W, Surup F, Braus GH. Biosynthesis of Antibacterial Iron-Chelating Tropolones in Aspergillus nidulans as Response to Glycopeptide-Producing Streptomycetes. Front Fungal Biol 2022; 2:777474. [PMID: 37744088 PMCID: PMC10512232 DOI: 10.3389/ffunb.2021.777474] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 12/06/2021] [Indexed: 09/26/2023]
Abstract
The soil microbiome comprises numerous filamentous fungi and bacteria that mutually react and challenge each other by the production of bioactive secondary metabolites. Herein, we show in liquid co-cultures that the presence of filamentous Streptomycetes producing antifungal glycopeptide antibiotics induces the production of the antibacterial and iron-chelating tropolones anhydrosepedonin (1) and antibiotic C (2) in the mold Aspergillus nidulans. Additionally, the biosynthesis of the related polyketide tripyrnidone (5) was induced, whose novel tricyclic scaffold we elucidated by NMR and HRESIMS data. The corresponding biosynthetic polyketide synthase-encoding gene cluster responsible for the production of these compounds was identified. The tropolones as well as tripyrnidone (5) are produced by genes that belong to the broad reservoir of the fungal genome for the synthesis of different secondary metabolites, which are usually silenced under standard laboratory conditions. These molecules might be part of the bacterium-fungus competition in the complex soil environment, with the bacterial glycopeptide antibiotic as specific environmental trigger for fungal induction of this cluster.
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Affiliation(s)
- Jennifer Gerke
- Department of Moleuclar Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
| | - Anna M. Köhler
- Department of Moleuclar Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
| | - Jan-Peer Wennrich
- Microbial Drugs Department, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
- German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Braunschweig, Germany
| | - Verena Große
- Department of Moleuclar Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
| | - Lulu Shao
- Microbial Drugs Department, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
- German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Braunschweig, Germany
| | - Antje K. Heinrich
- Molecular Biotechnology, Goethe University Frankfurt, Frankfurt am Main, Germany
| | - Helge B. Bode
- Molecular Biotechnology, Goethe University Frankfurt, Frankfurt am Main, Germany
- Department of Natural Products in Organismic Interactions, Max Planck Institute for Terrestrial Microbiology, Marburg, Germany
| | - Wanping Chen
- Department of Moleuclar Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
| | - Frank Surup
- Microbial Drugs Department, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
- German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Braunschweig, Germany
| | - Gerhard H. Braus
- Department of Moleuclar Microbiology and Genetics and Göttingen Center for Molecular Biosciences (GZMB), Georg-August-Universität Göttingen, Göttingen, Germany
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5
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Meister C, Gulko MK, Köhler AM, Braus GH. The devil is in the details: comparison between COP9 signalosome (CSN) and the LID of the 26S proteasome. Curr Genet 2016; 62:129-36. [PMID: 26497135 DOI: 10.1007/s00294-015-0525-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 10/05/2015] [Accepted: 10/06/2015] [Indexed: 01/29/2023]
Abstract
The COP9 signalosome (CSN) and the proteasomal LID are conserved macromolecular complexes composed of at least eight subunits with molecular weights of approximately 350 kDa. CSN and LID are part of the ubiquitin–proteasome pathway and cleave isopeptide linkages of lysine side chains on target proteins. CSN cleaves the isopeptide bond of ubiquitin-like protein Nedd8 from cullins, whereas the LID cleaves ubiquitin from target proteins sentenced for degradation. CSN and LID are structurally and functionally similar but the order of the assembly pathway seems to be different. The assembly differs in at least the last subunit joining the pre-assembled subcomplex. This review addresses the similarities and differences in structure, function and assembly of CSN and LID.
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Beckmann EA, Köhler AM, Meister C, Christmann M, Draht OW, Rakebrandt N, Valerius O, Braus GH. Integration of the catalytic subunit activates deneddylase activity in vivo as final step in fungal COP9 signalosome assembly. Mol Microbiol 2015; 97:110-24. [PMID: 25846252 DOI: 10.1111/mmi.13017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2015] [Indexed: 12/23/2022]
Abstract
The eight-subunit COP9 signalosome (CSN) is conserved from filamentous fungi to humans and functions at the interface between cellular signalling and protein half-life control. CSN consists of six PCI and two MPN domain proteins and forms a scaffold for additional interacting proteins. CSN controls protein stability in the ubiquitin-proteasome system where the MPN domain CSN5/CsnE subunit inactivates cullin-RING ligases. The CSN5/CsnE isopeptidase functions as deneddylase and removes the ubiquitin-like protein Nedd8. The six PCI domain proteins of human CSN form a horseshoe-like ring and all eight subunits are connected by a bundle of C-terminal α-helices. We show that single deletions of any csn subunit of Aspergillus nidulans resulted in the lack of deneddylase activity and identical defects in the coordination of development and secondary metabolism. The CSN1/CsnA N-terminus is dispensable for deneddylase activity but required for asexual spore formation. Complex analyses in mutant strains revealed the presence of a seven-subunit pre-CSN without catalytic activity. Reconstitution experiments with crude extracts of deletion strains and recombinant proteins allowed the integration of CSN5/CsnE into pre-CSN resulting in an active deneddylase. This supports a stable seven subunit pre-CSN intermediate where deneddylase activation in vivo can be controlled by CSN5/CsnE integration as final assembly step.
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Affiliation(s)
- Elena A Beckmann
- Institut für Mikrobiologie und Genetik, Georg-August Universität Göttingen, Grisebachstrasse 8, D-37077, Göttingen, Germany
| | - Anna M Köhler
- Institut für Mikrobiologie und Genetik, Georg-August Universität Göttingen, Grisebachstrasse 8, D-37077, Göttingen, Germany
| | - Cindy Meister
- Institut für Mikrobiologie und Genetik, Georg-August Universität Göttingen, Grisebachstrasse 8, D-37077, Göttingen, Germany
| | - Martin Christmann
- Institut für Mikrobiologie und Genetik, Georg-August Universität Göttingen, Grisebachstrasse 8, D-37077, Göttingen, Germany
| | - Oliver W Draht
- Institut für Mikrobiologie und Genetik, Georg-August Universität Göttingen, Grisebachstrasse 8, D-37077, Göttingen, Germany
| | - Nikolas Rakebrandt
- Institut für Mikrobiologie und Genetik, Georg-August Universität Göttingen, Grisebachstrasse 8, D-37077, Göttingen, Germany
| | - Oliver Valerius
- Institut für Mikrobiologie und Genetik, Georg-August Universität Göttingen, Grisebachstrasse 8, D-37077, Göttingen, Germany
| | - Gerhard H Braus
- Institut für Mikrobiologie und Genetik, Georg-August Universität Göttingen, Grisebachstrasse 8, D-37077, Göttingen, Germany
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Köhler AM, Saile V, Reininger R, Findley GL. Sudden and adiabatic polarization effects in doped rare gases. Phys Rev Lett 1988; 60:2727-2730. [PMID: 10038436 DOI: 10.1103/physrevlett.60.2727] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Köhler AM, Reininger R, Saile V, Findley GL. Density effects on high-n molecular Rydberg states: CH3I in He, Ne, Ar, and Kr. Phys Rev A Gen Phys 1987; 35:79-86. [PMID: 9897931 DOI: 10.1103/physreva.35.79] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Köhler AM, Reininger R, Saile V, Findley GL. Density effects on high-n molecular Rydberg states: CH3I in argon. Phys Rev A Gen Phys 1986; 33:771-773. [PMID: 9896681 DOI: 10.1103/physreva.33.771] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Köhler M, Schulten H, Köhler AM. [Lactate concentration in the cerebrospinal fluid in localized stenoses and occlusions of the great brain-supplying arteries and in diffuse cerebrovascular diseases]. Z Kardiol 1974; 63:1119-26. [PMID: 4458326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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