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Jonasson NSW, Daumann LJ. Corrigendum: 5‐Methylcytosine is Oxidized to the Natural Metabolites of TET Enzymes by a Biomimetic Iron(IV)‐Oxo Complex. Chemistry 2019; 25:15004. [DOI: 10.1002/chem.201904427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Jonasson NSW, Daumann LJ. Cover Feature: 5‐Methylcytosine is Oxidized to the Natural Metabolites of TET Enzymes by a Biomimetic Iron(IV)‐Oxo Complex (Chem. Eur. J. 52/2019). Chemistry 2019. [DOI: 10.1002/chem.201903070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Lüling R, Singer H, Popp T, John H, Boekhoff I, Thiermann H, Daumann LJ, Karaghiosoff K, Gudermann T, Steinritz D. Sulfur mustard alkylates steroid hormones and impacts hormone function in vitro. Arch Toxicol 2019; 93:3141-3152. [DOI: 10.1007/s00204-019-02571-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 09/04/2019] [Indexed: 11/28/2022]
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Daumann LJ. Essential and Ubiquitous: The Emergence of Lanthanide Metallobiochemistry. Angew Chem Int Ed Engl 2019; 58:12795-12802. [DOI: 10.1002/anie.201904090] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Indexed: 11/10/2022]
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Jonasson NSW, Daumann LJ. 5‐Methylcytosine is Oxidized to the Natural Metabolites of TET Enzymes by a Biomimetic Iron(IV)‐Oxo Complex. Chemistry 2019; 25:12091-12097. [PMID: 31211459 DOI: 10.1002/chem.201902340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/15/2019] [Indexed: 12/28/2022]
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Lumpe H, Daumann LJ. Studies of Redox Cofactor Pyrroloquinoline Quinone and Its Interaction with Lanthanides(III) and Calcium(II). Inorg Chem 2019; 58:8432-8441. [DOI: 10.1021/acs.inorgchem.9b00568] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Versantvoort W, Pol A, Daumann LJ, Larrabee JA, Strayer AH, Jetten MS, van Niftrik L, Reimann J, Op den Camp HJ. Characterization of a novel cytochrome c as the electron acceptor of XoxF-MDH in the thermoacidophilic methanotroph Methylacidiphilum fumariolicum SolV. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2019; 1867:595-603. [DOI: 10.1016/j.bbapap.2019.04.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/28/2019] [Accepted: 04/02/2019] [Indexed: 11/29/2022]
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Kalimuthu P, Daumann LJ, Pol A, Op den Camp HJM, Bernhardt PV. Electrocatalysis of a Europium‐Dependent Bacterial Methanol Dehydrogenase with Its Physiological Electron‐Acceptor Cytochrome
c
GJ
. Chemistry 2019. [DOI: 10.1002/chem.201901461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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35
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Kalimuthu P, Daumann LJ, Pol A, Op den Camp HJM, Bernhardt PV. Electrocatalysis of a Europium‐Dependent Bacterial Methanol Dehydrogenase with Its Physiological Electron‐Acceptor Cytochrome
c
GJ. Chemistry 2019; 25:8760-8768. [DOI: 10.1002/chem.201900525] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 03/21/2019] [Indexed: 01/27/2023]
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36
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Lumpe H, Pol A, Op den Camp HJM, Daumann LJ. Impact of the lanthanide contraction on the activity of a lanthanide-dependent methanol dehydrogenase - a kinetic and DFT study. Dalton Trans 2018; 47:10463-10472. [PMID: 30020281 PMCID: PMC6085770 DOI: 10.1039/c8dt01238e] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/14/2018] [Indexed: 01/15/2023]
Abstract
Interest in the bioinorganic chemistry of lanthanides is growing rapidly as more and more lanthanide-dependent bacteria are being discovered. Especially the earlier lanthanides have been shown to be preferentially utilized by bacteria that need these Lewis acids as cofactors in their alcohol dehydrogenase enzymes. Here, we investigate the impact of the lanthanide ions lanthanum(iii) to lutetium(iii) (excluding Pm) on the catalytic parameters (vmax, KM, kcat/KM) of a methanol dehydrogenase (MDH) isolated from Methylacidiphilum fumariolicum SolV. Kinetic experiments and DFT calculations were used to discuss why only the earlier lanthanides (La-Gd) promote high MDH activity. Impact of Lewis acidity, coordination number preferences, stability constants and other properties that are a direct result of the lanthanide contraction are discussed in light of the two proposed mechanisms for MDH.
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Jahn B, Pol A, Lumpe H, Barends TRM, Dietl A, Hogendoorn C, Op den Camp HJM, Daumann LJ. Front Cover: Similar but Not the Same: First Kinetic and Structural Analyses of a Methanol Dehydrogenase Containing a Europium Ion in the Active Site (ChemBioChem 11/2018). Chembiochem 2018. [DOI: 10.1002/cbic.201800221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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Comba P, Daumann LJ, Klingeler R, Koo C, Riley MJ, Roberts AE, Wadepohl H, Werner J. Correlation of Structural and Magnetic Properties in a Set of Mononuclear Lanthanide Complexes. Chemistry 2018; 24:5319-5330. [PMID: 29405448 DOI: 10.1002/chem.201704822] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Indexed: 11/06/2022]
Abstract
The electronic and magnetic properties of a set of mononuclear terbium(III) and dysprosium(III) complexes with two tetradentate 1-hydroxy-pyridin-2-one (1,2-HOPO) ligands are reported. Two primary coordination geometries are observed, depending on the length of the linker between the 1,2-HOPO donor moieties and the resulting arrangements of the linker. Fine details of the magnetic circular dichroism (MCD) spectra of the dysprosium(III) complexes illustrate differences in the splitting of the J multiplets and allow for a thorough ligand field analysis. High frequency electron paramagnetic resonance (HF-EPR) studies of the terbium(III) complexes give insight into the composition of the ground states. Ab initio calculations are utilized to rationalize the experimental results and further illustrate the effect of the structural features on the electronic and magnetic properties of the different complexes.
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Jahn B, Pol A, Lumpe H, Barends TRM, Dietl A, Hogendoorn C, Op den Camp HJM, Daumann LJ. Similar but Not the Same: First Kinetic and Structural Analyses of a Methanol Dehydrogenase Containing a Europium Ion in the Active Site. Chembiochem 2018; 19:1147-1153. [PMID: 29524328 PMCID: PMC6100108 DOI: 10.1002/cbic.201800130] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Indexed: 01/23/2023]
Abstract
Since the discovery of the biological relevance of rare earth elements (REEs) for numerous different bacteria, questions concerning the advantages of REEs in the active sites of methanol dehydrogenases (MDHs) over calcium(II) and of why bacteria prefer light REEs have been a subject of debate. Here we report the cultivation and purification of the strictly REE-dependent methanotrophic bacterium Methylacidiphilum fumariolicum SolV with europium(III), as well as structural and kinetic analyses of the first methanol dehydrogenase incorporating Eu in the active site. Crystal structure determination of the Eu-MDH demonstrated that overall no major structural changes were induced by conversion to this REE. Circular dichroism (CD) measurements were used to determine optimal conditions for kinetic assays, whereas inductively coupled plasma mass spectrometry (ICP-MS) showed 70 % incorporation of Eu in the enzyme. Our studies explain why bacterial growth of SolV in the presence of Eu3+ is significantly slower than in the presence of La3+ /Ce3+ /Pr3+ : Eu-MDH possesses a decreased catalytic efficiency. Although REEs have similar properties, the differences in ionic radii and coordination numbers across the series significantly impact MDH efficiency.
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Daumann LJ, Werther P, Ziegler MJ, Raymond KN. Siderophore inspired tetra- and octadentate antenna ligands for luminescent Eu(III) and Tb(III) complexes. J Inorg Biochem 2016; 162:263-273. [DOI: 10.1016/j.jinorgbio.2016.01.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 01/05/2016] [Accepted: 01/07/2016] [Indexed: 01/09/2023]
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41
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Daumann LJ, Tatum DS, Andolina CM, Pacold JI, D’Aléo A, Law GL, Xu J, Raymond KN. Effects of Ligand Geometry on the Photophysical Properties of Photoluminescent Eu(III) and Sm(III) 1-Hydroxypyridin-2-one Complexes in Aqueous Solution. Inorg Chem 2015; 55:114-24. [DOI: 10.1021/acs.inorgchem.5b01927] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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D'Aléo A, Moore EG, Xu J, Daumann LJ, Raymond KN. Optimization of the Sensitization Process and Stability of Octadentate Eu(III) 1,2-HOPO Complexes. Inorg Chem 2015; 54:6807-20. [PMID: 26151082 PMCID: PMC4556046 DOI: 10.1021/acs.inorgchem.5b00748] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
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The synthesis of
a series of octadentate ligands containing the 1-hydroxypyridin-2-one
(1,2-HOPO) group in complex with europium(III) is reported. Within
this series, the central bridge connecting two diethylenetriamine
units linked to two 1,2-HOPO chromophores at the extremities (5-LIN-1,2-HOPO)
is varied from a short ethylene chain (H(2,2)-1,2-HOPO) to a long
pentaethylene oxide chain (H(17O5,2)-1,2-HOPO). The thermodynamic
stability of the europium complexes has been studied and reveals these
complexes may be effective for biological measurements. Extension
of the central bridge results in exclusion of the inner-sphere water
molecule observed for [Eu(H(2,2)-1,2-HOPO)]− going
from a nonacoordinated to an octacoordinated Eu(III) ion. With the
longer chain length ligands, the complexes display increased luminescence
properties in aqueous medium with an optimum of 20% luminescence quantum
yield for the [Eu(H(17O5,2)-1,2-HOPO)]− complex.
The luminescence properties for [Eu(H(14O4,2)-1,2-HOPO)]− and [Eu(H(17O5,2)-1,2-HOPO)]− are better than
that of the model bis-tetradentate [Eu(5LINMe-1,2-HOPO)2]− complex, suggesting a different geometry
around the metal center despite the geometric freedom allowed by the
longer central chain in the H(mOn,2) scaffold. These differences are also evidenced by examining the
luminescence spectra at room temperature and at 77 K and by calculating
the luminescence kinetic parameters of the europium complexes. The tetradentate 5LINMe-1,2-HOPO ligand is a
proven sensitizer for Eu(III) emission. Herein, we report the synthesis,
stability, and photophysical characterization for a series of octadentate
ligands prepared by linking these subunits together with various aliphatic
or oligoethylene glycol chains to form Eu(III) complexes with fully
optimized emission in aqueous solution, in terms of their overall
quantum yield and brightness, for potential applications in biological
luminescence.
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Daumann LJ, Tatum DS, Snyder BER, Ni C, Law GL, Solomon EI, Raymond KN. New insights into structure and luminescence of Eu(III) and Sm(III) complexes of the 3,4,3-LI(1,2-HOPO) ligand. J Am Chem Soc 2015; 137:2816-9. [PMID: 25607882 PMCID: PMC4433002 DOI: 10.1021/ja5116524] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report the preparation and new insight into photophysical properties of luminescent hydroxypyridonate complexes [M(III)L](-) (M = Eu or Sm) of the versatile 3,4,3-LI(1,2-HOPO) ligand (L). We report the crystal structure of this ligand with Eu(III) as well as insights into the coordination behavior and geometry in solution by using magnetic circular dichroism. In addition TD-DFT calculations were used to examine the excited states of the two different chromophores present in the 3,4,3-LI(1,2-HOPO) ligand. We find that the Eu(III) and Sm(III) complexes of this ligand undergo a transformation after in situ preparation to yield complexes with higher quantum yield (QY) over time. It is proposed that the lower QY in the in situ complexes is not only due to water quenching but could also be due to a lower degree of f-orbital overlap (in a kinetic isomer) as indicated by magnetic circular dichroism measurements.
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Daumann LJ, Schenk G, Gahan LR. Metallo-β-lactamases and Their Biomimetic Complexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402203] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Daumann LJ, Schenk G, Gahan LR. Metallo‐β‐lactamases and Their Biomimetic Complexes (Eur. J. Inorg. Chem. 18/2014). Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201490086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Daumann LJ, Schenk G, Gahan LR. Metallo‐β‐lactamases and Their Biomimetic Complexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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47
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Daumann LJ, Schenk G, Ollis DL, Gahan LR. Spectroscopic and mechanistic studies of dinuclear metallohydrolases and their biomimetic complexes. Dalton Trans 2013; 43:910-28. [PMID: 24135968 DOI: 10.1039/c3dt52287c] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enhanced understanding of the metal ion binding and active site structural features of phosphoesterases such as the glycerophosphodiesterase from Enterobacter aerogenes (GpdQ), and the organophosphate degrading agent from Agrobacterium radiobacter (OpdA) have important consequences for potential applications. Coupled with investigations of the metalloenzymes, programs of study to synthesise and characterise model complexes based on these metalloenzymes can add to our understanding of structure and function of the enzymes themselves. This review summarises some of our work and illustrates the significance and contributions of model studies to knowledge in the area.
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Daumann LJ, Larrabee JA, Ollis D, Schenk G, Gahan LR. Immobilization of the enzyme GpdQ on magnetite nanoparticles for organophosphate pesticide bioremediation. J Inorg Biochem 2013; 131:1-7. [PMID: 24239906 DOI: 10.1016/j.jinorgbio.2013.10.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 10/08/2013] [Accepted: 10/08/2013] [Indexed: 01/26/2023]
Abstract
Annually thousands of people die or suffer from organophosphate (pesticide) poisoning. In order to remove these toxic compounds from the environment, the use of enzymes as bioremediators has been proposed. We report here a Ser127Ala mutant based on the enzyme glycerophosphodiesterase (GpdQ) from Enterobacter aerogenes. The mutant, with improved metal binding abilities, has been immobilized using glutaraldehyde on PAMAM dendrimer-modified magnetite nanoparticles. The immobilized system was characterized using elemental analysis as well as infrared, transmission electron and X-ray photoelectron spectroscopies. The amount of GpdQ that was immobilized with the optimized procedure was 1.488 nmol per g MNP. A kinetic assay has been designed to evaluate the activity of the system towards organophosphoester substrates. The specific activity towards BPNPP directly after immobilization was 3.55 μmol mg(-1)min(-1), after one week 3.39 μmol mg(-1)min(-1) and after 120 days 3.36 μmol mg(-1)min(-1), demonstrating that the immobilized enzyme was active for multiple cycles and could be stored on the nanoparticles for a prolonged period.
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Daumann LJ, Larrabee JA, Comba P, Schenk G, Gahan LR. Dinuclear Cobalt(II) Complexes as Metallo-β-lactamase Mimics. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300280] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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50
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Dalle KE, Daumann LJ, Schenk G, McGeary RP, Hanton LR, Gahan LR. Ligand modifications modulate the mechanism of binuclear phosphatase biomimetics. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.06.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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