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Riedel R, Commichau FM, Benndorf D, Hertel R, Holzer K, Hoelzle LE, Mardoukhi MSY, Noack LE, Martienssen M. Biodegradation of selected aminophosphonates by the bacterial isolate Ochrobactrum sp. BTU1. Microbiol Res 2024; 280:127600. [PMID: 38211497 DOI: 10.1016/j.micres.2024.127600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 12/19/2023] [Accepted: 01/02/2024] [Indexed: 01/13/2024]
Abstract
Aminophosphonates, like glyphosate (GS) or metal chelators such as ethylenediaminetetra(methylenephosphonic acid) (EDTMP), are released on a large scale worldwide. Here, we have characterized a bacterial strain capable of degrading synthetic aminophosphonates. The strain was isolated from LC/MS standard solution. Genome sequencing indicated that the strain belongs to the genus Ochrobactrum. Whole-genome classification using pyANI software to compute a pairwise ANI and other metrics between Brucella assemblies and Ochrobactrum contigs revealed that the bacterial strain is designated as Ochrobactrum sp. BTU1. Degradation batch tests with Ochrobactrum sp. BTU1 and the selected aminophosphonates GS, EDTMP, aminomethylphosphonic acid (AMPA), iminodi(methylene-phosphonic) (IDMP) and ethylaminobis(methylenephosphonic) acid (EABMP) showed that the strain can use all phosphonates as sole phosphorus source during phosphorus starvation. The highest growth rate was achieved with AMPA, while EDTMP and GS were least supportive for growth. Proteome analysis revealed that GS degradation is promoted by C-P lyase via the sarcosine pathway, i.e., initial cleavage at the C-P bond. We also identified C-P lyase to be responsible for degradation of EDTMP, EABMP, IDMP and AMPA. However, the identification of the metabolite ethylenediaminetri(methylenephosphonic acid) via LC/MS analysis in the test medium during EDTMP degradation indicates a different initial cleavage step as compared to GS. For EDTMP, it is evident that the initial cleavage occurs at the C-N bond. The detection of different key enzymes at regulated levels, form the bacterial proteoms during EDTMP exposure, further supports this finding. This study illustrates that widely used and structurally more complex aminophosphonates can be degraded by Ochrobactrum sp. BTU1 via the well-known degradation pathways but with different initial cleavage strategy compared to GS.
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Affiliation(s)
- Ramona Riedel
- Chair of Biotechnology of Water Treatment Brandenburg, Institute of Environmental Technology, BTU Cottbus-Senftenberg, Cottbus, Germany.
| | - Fabian M Commichau
- FG Synthetic Microbiology, Institute for Biotechnology, BTU Cottbus-Senftenberg, Senftenberg, Germany; FG Molecular Microbiology, Institute for Biology, University of Hohenheim, Stuttgart, Germany
| | - Dirk Benndorf
- Applied Biosciences and Process Engineering, Anhalt University of Applied Sciences, Köthen, Germany; Chair of Bioprocess Engineering, Otto von Guericke University, Magdeburg, Germany; Bioprocess Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Magdeburg, Germany
| | - Robert Hertel
- FG Synthetic Microbiology, Institute for Biotechnology, BTU Cottbus-Senftenberg, Senftenberg, Germany; Department of Genomic and Applied Microbiology, Institute of Microbiology and Genetics, Georg-August-University of Göttingen, Göttingen, Germany
| | - Katharina Holzer
- Department of Livestock Infectiology and Environmental Hygiene, Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
| | - Ludwig E Hoelzle
- Department of Livestock Infectiology and Environmental Hygiene, Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
| | - Mohammad Saba Yousef Mardoukhi
- Chair of Biotechnology of Water Treatment Brandenburg, Institute of Environmental Technology, BTU Cottbus-Senftenberg, Cottbus, Germany; FG Synthetic Microbiology, Institute for Biotechnology, BTU Cottbus-Senftenberg, Senftenberg, Germany; FG Molecular Microbiology, Institute for Biology, University of Hohenheim, Stuttgart, Germany
| | - Laura Emelie Noack
- Chair of Biotechnology of Water Treatment Brandenburg, Institute of Environmental Technology, BTU Cottbus-Senftenberg, Cottbus, Germany
| | - Marion Martienssen
- Chair of Biotechnology of Water Treatment Brandenburg, Institute of Environmental Technology, BTU Cottbus-Senftenberg, Cottbus, Germany
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Dinhof T, Kalina T, Stanković T, Braunsteiner K, Rohrbach P, Turhan E, Gradwohl A, Königshofer A, Horak J, Pallitsch K. Asymmetric Transfer Hydrogenation as a Key Step in the Synthesis of the Phosphonic Acid Analogs of Aminocarboxylic Acids. Chemistry 2023; 29:e202302171. [PMID: 37461839 PMCID: PMC10947287 DOI: 10.1002/chem.202302171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 07/17/2023] [Indexed: 09/21/2023]
Abstract
α-Aminophosphonic acids have a remarkably broad bioactivity spectrum. They can function as highly efficient transition state mimics for a variety of hydrolytic and angiotensin-converting enzymes, which makes them interesting target structures for synthetic chemists. In particular, the phosphonic acid analogs to α-aminocarboxylic acids (Pa AAs) are potent enzyme inhibitors, but many of them are only available by chiral or enzymatic resolution; sometimes only one enantiomer is accessible, and several have never been prepared in enantiopure form at all. Today, a variety of methods to access enantiopure α-aminophosphonic acids is known but none of the reported approaches can be generally applied for the synthesis of Pa AAs. Here we show that the phosphonic acid analogs of many (proteinogenic) α-amino acids become accessible by the catalytic, stereoselective asymmetric transfer hydrogenation (ATH) of α-oxo-phosphonates. The highly enantioenriched (enantiomeric excess (ee) ≥ 98 %) α-hydroxyphosphonates obtained are important pharmaceutical building blocks in themselves and could be easily converted to α-aminophosphonic acids in most studied cases. Even stereoselectively deuterated analogs became easily accessible from the same α-oxo-phosphonates using deuterated formic acid (DCO2 H).
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Affiliation(s)
- Tamara Dinhof
- Institute of Organic ChemistryFaculty of ChemistryUniversity of ViennaWähringerstraße 381090ViennaAustria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringerstraße 421090ViennaAustria
| | - Thomas Kalina
- Institute of Organic ChemistryFaculty of ChemistryUniversity of ViennaWähringerstraße 381090ViennaAustria
| | - Toda Stanković
- Institute of Organic ChemistryFaculty of ChemistryUniversity of ViennaWähringerstraße 381090ViennaAustria
| | - Kristóf Braunsteiner
- Institute of Organic ChemistryFaculty of ChemistryUniversity of ViennaWähringerstraße 381090ViennaAustria
| | - Philipp Rohrbach
- Institute of Organic ChemistryFaculty of ChemistryUniversity of ViennaWähringerstraße 381090ViennaAustria
| | - Ertan Turhan
- Institute of Organic ChemistryFaculty of ChemistryUniversity of ViennaWähringerstraße 381090ViennaAustria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringerstraße 421090ViennaAustria
| | - Andreas Gradwohl
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringerstraße 421090ViennaAustria
- Institute of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaJosef-Holaubek-Platz 21090ViennaAustria
| | - Artur Königshofer
- Institute of Organic ChemistryFaculty of ChemistryUniversity of ViennaWähringerstraße 381090ViennaAustria
| | - Jeannie Horak
- Division of Metabolic and Nutritional MedicineDr. von Hauner Children's HospitalLudwig Maximilians University Munich Medical CenterLindwurmstraße 480337MunichGermany
| | - Katharina Pallitsch
- Institute of Organic ChemistryFaculty of ChemistryUniversity of ViennaWähringerstraße 381090ViennaAustria
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Ruffolo F, Dinhof T, Murray L, Zangelmi E, Chin JP, Pallitsch K, Peracchi A. The Microbial Degradation of Natural and Anthropogenic Phosphonates. Molecules 2023; 28:6863. [PMID: 37836707 PMCID: PMC10574752 DOI: 10.3390/molecules28196863] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/21/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023] Open
Abstract
Phosphonates are compounds containing a direct carbon-phosphorus (C-P) bond, which is particularly resistant to chemical and enzymatic degradation. They are environmentally ubiquitous: some of them are produced by microorganisms and invertebrates, whereas others derive from anthropogenic activities. Because of their chemical stability and potential toxicity, man-made phosphonates pose pollution problems, and many studies have tried to identify biocompatible systems for their elimination. On the other hand, phosphonates are a resource for microorganisms living in environments where the availability of phosphate is limited; thus, bacteria in particular have evolved systems to uptake and catabolize phosphonates. Such systems can be either selective for a narrow subset of compounds or show a broader specificity. The role, distribution, and evolution of microbial genes and enzymes dedicated to phosphonate degradation, as well as their regulation, have been the subjects of substantial studies. At least three enzyme systems have been identified so far, schematically distinguished based on the mechanism by which the C-P bond is ultimately cleaved-i.e., through either a hydrolytic, radical, or oxidative reaction. This review summarizes our current understanding of the molecular systems and pathways that serve to catabolize phosphonates, as well as the regulatory mechanisms that govern their activity.
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Affiliation(s)
- Francesca Ruffolo
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, I-43124 Parma, Italy (E.Z.)
| | - Tamara Dinhof
- Institute of Organic Chemistry, Faculty of Chemistry, University of Vienna, A-1090 Vienna, Austria;
- Vienna Doctoral School in Chemistry (DoSChem), University of Vienna, A-1090 Vienna, Austria
| | - Leanne Murray
- School of Biological Sciences and Institute for Global Food Security, Queen’s University Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, UK
| | - Erika Zangelmi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, I-43124 Parma, Italy (E.Z.)
| | - Jason P. Chin
- School of Biological Sciences and Institute for Global Food Security, Queen’s University Belfast, 19 Chlorine Gardens, Belfast BT9 5DL, UK
| | - Katharina Pallitsch
- Institute of Organic Chemistry, Faculty of Chemistry, University of Vienna, A-1090 Vienna, Austria;
| | - Alessio Peracchi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, I-43124 Parma, Italy (E.Z.)
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