Z01

Overview

Overview
Related items

Central Tasks

SEEK ID: https://data.chembiosys.de/projects/19

Public web page: Not specified

Organisms: No Organisms specified

PALs: No PALs for this Project

Project created: 1st Oct 2014

Related items

Showing 5 out of a possible 6 People Advanced People list for this Project with search and filtering

Sabine Arndt

Projects: INF, Total ChemBioSys, Z01

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

Georg Pohnert

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

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

Wolfgang Schmidt-Heck

Projects: A1, A2, A3, A4, B1, B2, B3, B4, B05, B6, C1, C2, C3, C4, C5, Total ChemBioSys, Z01, Z02, Associated project 1

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

Maria Sorokina

Projects: A1, A2, A4, Associated project 1, B05, B1, B2, B3, B4, B6, C2, C3, C5, INF, Total ChemBioSys, Z01, Z02, A3, ChemBioSys I, RDM training, C1, A06

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

View all 6 People

Showing 5 out of a possible 12 Institutions Advanced Institutions list for this Project with search and filtering

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

View all 12 Institutions

Advanced Data files list for this Project with search and filtering

2 hidden items

Advanced Publications list for this Project with search and filtering

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

C5, Z01

(Show All)

Abstract (Expand)

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

Views: 1576, Downloads: 0

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

C5, Z01, INF

(Show All)

Abstract (Expand)

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

Views: 1460, Downloads: 0

Sticking together: inter-species aggregation of bacteria isolated from iron snow is controlled by chemical signaling

Total ChemBioSys, C1, C4, Z01

(Show All)

Abstract (Expand)

Marine and lake snow is a continuous shower of mixed organic and inorganic aggregates falling from the upper water where primary production is substantial. These pelagic aggregates provide a niche for …

Authors: J. F. Mori, N. Ueberschaar, S. Lu, R. E. Cooper, G. Pohnert, K. Kusel

Date Published: 1st Feb 2017

Publication Type: Not specified

PubMed ID: 28140394

Citation: ISME J. 2017 May;11(5):1075-1086. doi: 10.1038/ismej.2016.186. Epub 2017 Jan 31.

Created: 8th May 2017 at 09:55, Last updated: 9th Feb 2023 at 08:34

Views: 2033, Downloads: 0

A fast and direct liquid chromatography-mass spectrometry method to detect and quantify polyunsaturated aldehydes and polar oxylipins in diatoms

A1, C1, C5, Z01

(Show All)

Abstract (Expand)

Polyunsaturated aldehydes (PUAs) are a group of microalgal metabolites that have attracted a lot of attention due to their biological activity. Determination of PUAs has become an important routine …

Authors: Constanze Kuhlisch, Michael Deicke, Nico Ueberschaar, Thomas Wichard, Georg Pohnert

Date Published: 15th Oct 2016

Publication Type: Not specified

DOI: 10.1002/lom3.10143

Citation:

Created: 10th Jul 2017 at 08:52

Views: 1442, Downloads: 0

Advanced Presentations list for this Project with search and filtering

5 hidden items

(v.1.14.1)

About | About ChemBioSys | Funding and Programmes | Credits