C5

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Metallophores as Mediators for Metal Cycling: Development of Libraries for Metal Ion Buffering and as Redox Carriers as well as Profiling of Metallophores

SEEK ID: https://data.chembiosys.de/projects/17

Public web page: Not specified

Organisms: Frankia spp.

PALs: No PALs for this Project

Project created: 1st Oct 2014

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Showing 5 out of a possible 11 People Advanced People list for this Project with search and filtering

Axel Buchholz

Projects: C5, Total ChemBioSys

Institutions: Friedrich Schiller University Jena (FSU), Institute for Inorganic and Analytical Chemistry

Expertise: Synthetic chemistry, Magnetism, Coordination Chemistry

Tools: NMR, Magnetic Property Measurements (SQUID), ESR, UV-Vis Spectroscopy, VCD-Spectroscopy

Michael Deicke

Projects: C5, Total ChemBioSys

Institutions: Friedrich Schiller University Jena (FSU), Institute for Inorganic and Analytical Chemistry

Sofia Gama

Projects: C5, Total ChemBioSys

Institutions: Friedrich Schiller University Jena (FSU), Institute for Inorganic and Analytical Chemistry

Christian Hertweck

Projects: A1, A2, A3, A4, B05, Total ChemBioSys, B1, B2, B3, B4, B6, C1, C2, C3, C4, C5, INF, Z01, Z02

Institutions: Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute

Anna Komor

Projects: Total ChemBioSys, Z02, A1, A2, A4, B05, B1, B2, B3, B4, B6, C2, C3, C5, A3, C1

Institutions: Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute

https://orcid.org/0000-0003-4806-4233

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Friedrich Schiller University Jena (FSU), Institute of Ecology

Country: Germany

City: Jena

Web page: Not specified

Friedrich Schiller University Jena (FSU), Institute of General Botany and Plant Physiology

Country: Germany

City: Jena

Web page: Not specified

Friedrich Schiller University Jena (FSU), Center for Infectious Diseases and Infection Control

Country: Germany

City: Jena

Web page: Not specified

Friedrich Schiller University Jena (FSU), Center for Molecular Biomedicine; Biochemistry

Country: Germany

City: Jena

Web page: Not specified

Friedrich Schiller University Jena (FSU), Institute for Inorganic and Analytical Chemistry

Country: Germany

City: Jena

Web page: Not specified

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Showing 5 out of a possible 9 Publications Advanced Publications list for this Project with search and filtering

Rhizobactin B is the preferred siderophore by a novel Pseudomonas isolate to obtain iron from dissolved organic matter in peatlands.

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Bacteria often release diverse iron-chelating compounds called siderophores to scavenge iron from the environment for many essential biological processes. In peatlands, where the biogeochemical cycle …

Authors: S. Kugler, R. E. Cooper, J. Boessneck, K. Kusel, T. Wichard

Date Published: 7th Oct 2020

Publication Type: Journal

PubMed ID: 33026607

Citation: Biometals. 2020 Oct 7. pii: 10.1007/s10534-020-00258-w. doi: 10.1007/s10534-020-00258-w.

Created: 18th Nov 2020 at 16:46

Metallophore profiling of nitrogen-fixing Frankia spp. to understand metal management in the rhizosphere of actinorhizal plants.

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Frankia spp. are widespread nitrogen-fixing soil bacteria, which often live in symbiosis with a broad range of hosts. Metal homeostasis plays a crucial role in the success of the symbiosis regarding …

Authors: M. Deicke, J. F. Mohr, S. Roy, P. Herzsprung, J. P. Bellenger, T. Wichard

Date Published: 17th Apr 2019

Publication Type: Journal

PubMed ID: 30843545

Citation: Metallomics. 2019 Apr 17;11(4):810-821. doi: 10.1039/c8mt00344k.

Created: 21st Nov 2020 at 16:32

Algae induce siderophore biosynthesis in the freshwater bacterium Cupriavidus necator H16.

A1, C5

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Cupriachelin is a photoreactive lipopeptide siderophore produced by the freshwater bacterium Cupriavidus necator H16. In the presence of sunlight, the iron-loaded siderophore undergoes photolytic …

Authors: C. Kurth, I. Wasmuth, T. Wichard, G. Pohnert, M. Nett

Date Published: 27th Nov 2018

Publication Type: Journal

PubMed ID: 30474772

Citation: Biometals. 2019 Feb;32(1):77-88. doi: 10.1007/s10534-018-0159-6. Epub 2018 Nov 24.

Created: 21st Nov 2020 at 16:26

Thermodynamic study on 8-hydroxyquinoline-2-carboxylic acid as a chelating agent for iron found in the gut of Noctuid larvae

C5, Z01

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The recognition of quinolinic carboxylic acids as natural chelants and the recent observation of a high production of 8-hydroxyquinoline-2-carboxylic acid (8-HQA) in the gut of several Noctuid larvae … (e.g. Spodoptera littoralis) has inspired the study of the chelation properties of 8-HQA towards Fe2+ and Fe3+. Here, we report a detailed characterization of the thermodynamic solution behaviour of Fe2+/8-HQA and Fe3+/8-HQA systems as a function of the pH value. The acid–base properties of 8-HQA and its binding ability towards Fe2+ and Fe3+ have been investigated over a wide range of pH values (2.0 ≤ pH ≤ 11.0) by ISE-H+ (glass electrode) potentiometric titrations in KCl(aq) at I = 0.2 mol dm−3 and at T = 298.15 K. For both oxidation states, various FeLqHr species are formed, with q = 1, 2 (and 3), and −2 ≤ r ≤ 1. The presence of the main FeLqHr species was confirmed by HESI-HRMS. ESR measurements have also been performed to get some extra information on the Fe3+ coordination, indicating a distorted octahedral symmetry around the metal center. Quantum mechanical calculations have been carried out in order to characterize the structural features of selected metal complexes. The complexing ability of 8-HQA is generally much higher for Fe3+ than Fe2+. Nevertheless, the sequestering ability of 8-HQA towards these two oxidation states of this metal ion, obtained by the calculation of several pL0.5 values, resulted in it being highly dependent on the pH value: (i) at relatively low pH values, it is higher for Fe3+ (pL0.5 = 6.3 at pH = 3.0) than for Fe2+ (pL0.5 = 3.1 at pH = 3.0); (ii) it is almost the same at pH = 8.1 (Fe3+: pL0.5 = 8.3; Fe2+: pL0.5 = 8.1); (iii) it is higher for Fe2+ at high pH values (pL0.5 = 8.9 for Fe2+ and pL0.5 = 6.2 for Fe3+ at pH = 10.0). The determination of the stability constants of the Fe2+/8-HQA and Fe3+/8-HQA complexes was also complemented by data obtained by the ligand-competition approach, using EDTA as a competing ligand over a wide range of cation and ligand concentrations and ratios. This also allowed a more thorough investigation of both the Fe2+/EDTA and Fe3+/EDTA systems, providing an accurate stability constant dataset for the Fep(EDTA)qHr species under the above-mentioned experimental conditions, which are commonly used in biological studies.

Authors: Sofia Gama, Mariachiara Frontauria, Nico Ueberschaar, Giuseppe Brancato, Demetrio Milea, Silvio Sammartano, Winfried Plass

Date Published: 9th Apr 2018

Publication Type: Not specified

DOI: 10.1039/C7NJ04889K

Citation:

Created: 30th May 2018 at 14:04

DeltaMS: a tool to track isotopologues in GC- and LC-MS data

C5, Z01, INF

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Introduction: Stable isotopic labeling experiments are powerful tools to study metabolic pathways, to follow tracers and fluxes in biotic and abiotic transformations and to elucidate molecules involved …

Authors: Tim U. H. Baumeister, Nico Ueberschaar, Wolfgang Schmidt-Heck, J. Frieder Mohr, Michael Deicke, Thomas Wichard, Reinhard Guthke, Georg Pohnert

Date Published: 27th Feb 2018

Publication Type: Not specified

DOI: 10.1007/s11306-018-1336-x

Citation:

Created: 28th Feb 2018 at 12:35

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