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Czestkowski W, Krzemiński Ł, Piotrowicz MC, Mazur M, Pluta E, Andryianau G, Koralewski R, Matyszewski K, Olejniczak S, Kowalski M, Lisiecka K, Kozieł R, Piwowar K, Papiernik D, Nowotny M, Napiórkowska-Gromadzka A, Nowak E, Niedziałek D, Wieczorek G, Siwińska A, Rejczak T, Jędrzejczak K, Mulewski K, Olczak J, Zasłona Z, Gołębiowski A, Drzewicka K, Bartoszewicz A. Structure-Based Discovery of High-Affinity Small Molecule Ligands and Development of Tool Probes to Study the Role of Chitinase-3-Like Protein 1. J Med Chem 2024; 67:3959-3985. [PMID: 38427954 DOI: 10.1021/acs.jmedchem.3c02255] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
Chitinase-3-like-1 (CHI3L1), also known as YKL-40, is a glycoprotein linked to inflammation, fibrosis, and cancer. This study explored CHI3L1's interactions with various oligosaccharides using microscale thermophoresis (MST) and AlphaScreen (AS). These investigations guided the development of high-throughput screening assays to assess interference of small molecules in binding between CHI3L1 and biotinylated small molecules or heparan sulfate-based probes. Small molecule binders of YKL-40 were identified in our chitotriosidase inhibitors library with MST and confirmed through X-ray crystallography. Based on cocrystal structures of potent hit compounds with CHI3L1, small molecule probes 19 and 20 were designed for an AS assay. Structure-based optimization led to compounds 30 and 31 with nanomolar activities and drug-like properties. Additionally, an orthogonal AS assay using biotinylated heparan sulfate as a probe was developed. The compounds' affinity showed a significant correlation in both assays. These screening tools and compounds offer novel avenues for investigating the role of CHI3L1.
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Affiliation(s)
| | | | | | - Marzena Mazur
- Molecure S.A., Żwirki I Wigury 101, Warsaw 02-089, Poland
| | - Elżbieta Pluta
- Molecure S.A., Żwirki I Wigury 101, Warsaw 02-089, Poland
| | | | | | | | | | | | | | - Rafał Kozieł
- Molecure S.A., Żwirki I Wigury 101, Warsaw 02-089, Poland
| | | | | | - Marcin Nowotny
- Laboratory of Protein Structure, International Institute of Molecular and Cell Biology in Warsaw, Ks. Trojdena 4, Warsaw 02-109, Poland
| | - Agnieszka Napiórkowska-Gromadzka
- Laboratory of Protein Structure, International Institute of Molecular and Cell Biology in Warsaw, Ks. Trojdena 4, Warsaw 02-109, Poland
| | - Elżbieta Nowak
- Laboratory of Protein Structure, International Institute of Molecular and Cell Biology in Warsaw, Ks. Trojdena 4, Warsaw 02-109, Poland
| | | | | | - Anna Siwińska
- Molecure S.A., Żwirki I Wigury 101, Warsaw 02-089, Poland
| | - Tomasz Rejczak
- Molecure S.A., Żwirki I Wigury 101, Warsaw 02-089, Poland
| | | | | | - Jacek Olczak
- Molecure S.A., Żwirki I Wigury 101, Warsaw 02-089, Poland
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Kremzer M, Tomiczek B, Matula G, Gocki M, Krzemiński Ł. Aluminium Matrix Composite Materials Reinforced by 3D-Printed Ceramic Preforms. Materials (Basel) 2023; 16:5473. [PMID: 37570177 PMCID: PMC10420023 DOI: 10.3390/ma16155473] [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] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/03/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023]
Abstract
This article employed the fused deposition modelling (FDM) method and gas-pressure infiltration to manufacture alumina/AlSi12 composites. Porous ceramic skeletons were prepared by FDM 3D printing of two different alumina powder-filed filaments. The organic component was removed using a combination of solvent and heat debinding, and the materials were then sintered at 1500 °C to complete the process. Thermogravimetric tests and DTA analysis were performed to develop an appropriate degradation and sintering program. Manufactured skeletons were subjected to microstructure analysis, porosity analysis, and bending test. The sintering process produced porous alumina ceramic samples with no residual carbon content. Open porosity could occur due to the binder's degradation. Liquid metal was infiltrated into the ceramic, efficiently filling any open pores and forming a three-dimensional network of the aluminium phase. The microstructure and characteristics of the fabricated materials were investigated using high-resolution scanning electron microscopy, computer tomography, hardness testing, and bending strength testing. The developed composite materials are characterized by the required structure-low porosity and homogenous distribution of the reinforcing phase, better mechanical properties than their matrix and more than twice as high hardness. Hence, the developed innovative technology of their manufacturing can be used in practice.
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Affiliation(s)
- Marek Kremzer
- Scientific and Didactic Laboratory of Nanotechnology and Material Technologies, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18a St., 44-100 Gliwice, Poland; (G.M.); (M.G.); (Ł.K.)
| | - Błażej Tomiczek
- Scientific and Didactic Laboratory of Nanotechnology and Material Technologies, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18a St., 44-100 Gliwice, Poland; (G.M.); (M.G.); (Ł.K.)
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3
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Dymek B, Sklepkiewicz P, Mlacki M, Güner NC, Nejman-Gryz P, Drzewicka K, Przysucha N, Rymaszewska A, Paplinska-Goryca M, Zagozdzon A, Proboszcz M, Krzemiński Ł, von der Thüsen JH, Górska K, Dzwonek K, Zasłona Z, Dobrzanski P, Krenke R. Pharmacological Inhibition of Chitotriosidase (CHIT1) as a Novel Therapeutic Approach for Sarcoidosis. J Inflamm Res 2022; 15:5621-5634. [PMID: 36199746 PMCID: PMC9529231 DOI: 10.2147/jir.s378357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 09/17/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction Methods Results Conclusion
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Affiliation(s)
- Barbara Dymek
- Molecure SA, Warsaw, 02-089, Poland
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, 02-097, Poland
- Correspondence: Barbara Dymek, Żwirki i Wigury 101, Warsaw, 02-089, Poland, Tel +48 22 552 67 24, Email
| | | | | | | | - Patrycja Nejman-Gryz
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, 02-097, Poland
| | | | - Natalia Przysucha
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, 02-097, Poland
| | | | - Magdalena Paplinska-Goryca
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, 02-097, Poland
| | | | - Małgorzata Proboszcz
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, 02-097, Poland
| | | | - Jan H von der Thüsen
- Department of Pathology, Erasmus Medical Center, Rotterdam, 3015 GD, the Netherlands
| | - Katarzyna Górska
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, 02-097, Poland
| | | | | | | | - Rafał Krenke
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Warsaw, 02-097, Poland
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Balwierz R, Bursy D, Biernat P, Hudz N, Shanaida M, Krzemiński Ł, Skóra P, Biernat M, Siodłak WO. Nano-Silica Carriers Coated by Chloramphenicol: Synthesis, Characterization, and Grinding Trial as a Way to Improve the Release Profile. Pharmaceuticals (Basel) 2022. [PMID: 35745622 DOI: 10.3390/ph15060703/s1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023] Open
Abstract
Silica nanoparticles were applied as the carrier of chloramphenicol (2,2-dichloro-N-[(1R,2R)-1,3-dihydroxy-1-(4-nitrophenyl)propan-2-yl]acetamide), and were loaded in a 1% carbopol-based gel (poly(acrylic acid)), which allowed obtainment of an upgraded drug form. The samples of silica materials were obtained by means of modified Stöber synthesis, and their morphological properties were analyzed using Fourier transform infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET) method, elemental analysis (EA), thermogravimetric analysis (TGA), analysis of the specific surface properties, X-ray diffraction study (XRD), scanning electron microscope (SEM), and dynamic light scattering (DLS) methods, which permitted the selection of the drug carrier. The two obtained silica carriers were coated with chloramphenicol and loaded into 1% carbopol gel. The release studies were then performed. The release results were evaluated using mathematical models as well as model-independent analysis. It was found that the modification of the synthesis of the silica by the sol-gel method to form a product coated with chloramphenicol and further grinding of the silica material influenced the release of the active substance, thus allowing the modification of its pharmaceutical availability. The change in the parameters of silica synthesis influenced the structure and morphological properties of the obtained silica carrier. The grinding process determined the way of adsorption of the active substance on its surface. The studies showed that the proper choice of silica carrier has a considerable effect on the release profile of the prepared hydrogel formulations.
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Affiliation(s)
| | - Dawid Bursy
- Department of Drug Forms Technology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Paweł Biernat
- Department of Drug Forms Technology, Faculty of Pharmacy, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Nataliia Hudz
- Faculty of Chemistry, University of Opole, 45-052 Opole, Poland
- Department of Drug Technology and Biopharmaceutics, Danylo Halytsky Lviv National Medical University, 79010 Lviv, Ukraine
| | - Mariia Shanaida
- Department of Pharmacognosy and Medical Botany, I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | - Łukasz Krzemiński
- Nanotechnology and Materials Technology Scientific and Didactic Laboratory, Faculty of Mechanical Engineering, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Paweł Skóra
- Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland
| | - Monika Biernat
- Department of Haematology, Blood Neoplasms and Bone Marrow Transplantation, Wroclaw Medical University, 50-367 Wroclaw, Poland
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Yang F, Chen TY, Krzemiński Ł, Santiago AG, Jung W, Chen P. Single-molecule dynamics of the molecular chaperone trigger factor in living cells. Mol Microbiol 2016; 102:992-1003. [PMID: 27626893 DOI: 10.1111/mmi.13529] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 09/10/2016] [Indexed: 01/20/2023]
Abstract
In bacteria, trigger factor (TF) is the molecular chaperone that interacts with the ribosome to assist the folding of nascent polypeptides. Studies in vitro have provided insights into the function and mechanism of TF. Much is to be elucidated, however, about how TF functions in vivo. Here, we use single-molecule tracking, in combination with genetic manipulations, to study the dynamics and function of TF in living E. coli cells. We find that TF, besides interacting with the 70S ribosome, may also bind to ribosomal subunits and form TF-polypeptide complexes that may include DnaK/DnaJ proteins. The TF-70S ribosome interactions are highly dynamic inside cells, with an average residence time of ∼0.2 s. Our results confirm that the signal recognition particle weakens TF's interaction with the 70S ribosome, and further identify that this weakening mainly results from a change in TF's binding to the 70S ribosome, rather than its unbinding. Moreover, using photoconvertible bimolecular fluorescence complementation, we selectively probe TF2 dimers in the cell and show that TF2 does not bind to the 70S ribosome but is involved in the post-translational interactions with polypeptides. These findings contribute to the fundamental understanding of molecular chaperones in assisting protein folding in living cells.
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Affiliation(s)
- Feng Yang
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Tai-Yen Chen
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Łukasz Krzemiński
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Ace George Santiago
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Won Jung
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
| | - Peng Chen
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA
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Li M, Jørgensen SK, McMillan DGG, Krzemiński Ł, Daskalakis NN, Partanen RH, Tutkus M, Tuma R, Stamou D, Hatzakis NS, Jeuken LJC. Single Enzyme Experiments Reveal a Long-Lifetime Proton Leak State in a Heme-Copper Oxidase. J Am Chem Soc 2015; 137:16055-63. [PMID: 26618221 PMCID: PMC4697922 DOI: 10.1021/jacs.5b08798] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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Heme-copper oxidases (HCOs) are key
enzymes in prokaryotes and
eukaryotes for energy production during aerobic respiration. They
catalyze the reduction of the terminal electron acceptor, oxygen,
and utilize the Gibbs free energy to transport protons across a membrane
to generate a proton (ΔpH) and electrochemical gradient termed
proton motive force (PMF), which provides the driving force for the
adenosine triphosphate (ATP) synthesis. Excessive PMF is known to
limit the turnover of HCOs, but the molecular mechanism of this regulatory
feedback remains relatively unexplored. Here we present a single-enzyme
study that reveals that cytochrome bo3 from Escherichia coli, an HCO closely homologous
to Complex IV in human mitochondria, can enter a rare, long-lifetime
leak state during which proton flow is reversed. The probability of
entering the leak state is increased at higher ΔpH. By rapidly
dissipating the PMF, we propose that this leak state may enable cytochrome bo3, and possibly other HCOs, to maintain a suitable
ΔpH under extreme redox conditions.
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Affiliation(s)
- Mengqiu Li
- School of Biomedical Sciences, University of Leeds , LS2 9JT Leeds, U.K
| | - Sune K Jørgensen
- Department of Chemistry, Nano-Science Center and Lundbeck Foundation Center for Biomembranes in Nanomedicine, University of Copenhagen , 2100 Copenhagen, Denmark
| | | | - Łukasz Krzemiński
- School of Biomedical Sciences, University of Leeds , LS2 9JT Leeds, U.K
| | | | - Riitta H Partanen
- School of Biomedical Sciences, University of Leeds , LS2 9JT Leeds, U.K
| | - Marijonas Tutkus
- Department of Chemistry, Nano-Science Center and Lundbeck Foundation Center for Biomembranes in Nanomedicine, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Roman Tuma
- School of Molecular and Cellular Biology, University of Leeds , LS2 9JT Leeds, U.K
| | - Dimitrios Stamou
- Department of Chemistry, Nano-Science Center and Lundbeck Foundation Center for Biomembranes in Nanomedicine, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Nikos S Hatzakis
- Department of Chemistry, Nano-Science Center and Lundbeck Foundation Center for Biomembranes in Nanomedicine, University of Copenhagen , 2100 Copenhagen, Denmark
| | - Lars J C Jeuken
- School of Biomedical Sciences, University of Leeds , LS2 9JT Leeds, U.K
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Chen TY, Jung W, Santiago AG, Yang F, Krzemiński Ł, Chen P. Quantifying Multistate Cytoplasmic Molecular Diffusion in Bacterial Cells via Inverse Transform of Confined Displacement Distribution. J Phys Chem B 2015; 119:14451-9. [PMID: 26491971 PMCID: PMC4645974 DOI: 10.1021/acs.jpcb.5b08654] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
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Single-molecule tracking (SMT) of
fluorescently tagged cytoplasmic
proteins can provide valuable information on the underlying biological
processes in living cells via subsequent analysis of the displacement
distributions; however, the confinement effect originated from the
small size of a bacterial cell skews the protein’s displacement
distribution and complicates the quantification of the intrinsic diffusive
behaviors. Using the inverse transformation method, we convert the
skewed displacement distribution (for both 2D and 3D imaging conditions)
back to that in free space for systems containing one or multiple
(non)interconverting Brownian diffusion states, from which we can
reliably extract the number of diffusion states as well as their intrinsic
diffusion coefficients and respective fractional populations. We further
demonstrate a successful application to experimental SMT data of a
transcription factor in living E. coli cells. This
work allows a direct quantitative connection between cytoplasmic SMT
data with diffusion theory for analyzing molecular diffusive behavior
in live bacteria.
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Affiliation(s)
- Tai-Yen Chen
- Department of Chemistry and Chemical Biology, Cornell University , Ithaca, New York 14853, United States
| | - Won Jung
- Department of Chemistry and Chemical Biology, Cornell University , Ithaca, New York 14853, United States
| | - Ace George Santiago
- Department of Chemistry and Chemical Biology, Cornell University , Ithaca, New York 14853, United States
| | - Feng Yang
- Department of Chemistry and Chemical Biology, Cornell University , Ithaca, New York 14853, United States
| | - Łukasz Krzemiński
- Department of Chemistry and Chemical Biology, Cornell University , Ithaca, New York 14853, United States
| | - Peng Chen
- Department of Chemistry and Chemical Biology, Cornell University , Ithaca, New York 14853, United States
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Jakubowska E, Zielczyński M, Golnik N, Gryziński MA, Krzemiński Ł. A ring-shaped recombination chamber for hadron therapy dosimetry. Radiat Prot Dosimetry 2014; 161:201-204. [PMID: 24430949 DOI: 10.1093/rpd/nct355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An innovative recombination chamber has been designed for estimation of stray radiation doses and quality factors in hadron therapy. The chamber allows for determination of absorbed dose and recombination index of radiation quality in phantoms at small distances from simulated organs. The chamber body and electrodes are ring shaped, so the beam may be directed through the empty centre of the ring. The ionisation of the filling gas is caused by secondary or scattered radiation and can be related to the dose absorbed in the tissues close to the irradiated target volume.
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Affiliation(s)
- E Jakubowska
- Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, Św. A. Boboli 8, Warsaw 02-525, Poland
| | - M Zielczyński
- National Centre for Nuclear Research, A. Sołtana 7, Otwock 05-400, Poland
| | - N Golnik
- Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, Św. A. Boboli 8, Warsaw 02-525, Poland
| | - M A Gryziński
- National Centre for Nuclear Research, A. Sołtana 7, Otwock 05-400, Poland
| | - Ł Krzemiński
- Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, Św. A. Boboli 8, Warsaw 02-525, Poland
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Krzemiński Ł, Cronin S, Ndamba L, Canters GW, Aartsma TJ, Evans SD, Jeuken LJC. Orientational Control over Nitrite Reductase on Modified Gold Electrode and Its Effects on the Interfacial Electron Transfer. J Phys Chem B 2011; 115:12607-14. [DOI: 10.1021/jp205852u] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Łukasz Krzemiński
- Institute of Membrane and Systems Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Samuel Cronin
- Institute of Membrane and Systems Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Lionel Ndamba
- Leiden Institute of Physics, Leiden University, P.O. Box 9504, 2300 RA, Leiden, The Netherlands
| | - Gerard W. Canters
- Leiden Institute of Physics, Leiden University, P.O. Box 9504, 2300 RA, Leiden, The Netherlands
| | - Thijs J. Aartsma
- Leiden Institute of Physics, Leiden University, P.O. Box 9504, 2300 RA, Leiden, The Netherlands
| | - Stephen D. Evans
- School of Physics and Astronomy, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
| | - Lars J. C. Jeuken
- Institute of Membrane and Systems Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K
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Krzemiński Ł, Ndamba L, Canters GW, Aartsma TJ, Evans SD, Jeuken LJC. Spectroelectrochemical Investigation of Intramolecular and Interfacial Electron-Transfer Rates Reveals Differences Between Nitrite Reductase at Rest and During Turnover. J Am Chem Soc 2011; 133:15085-93. [DOI: 10.1021/ja204891v] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Lionel Ndamba
- Leiden Institute of Physics, Leiden University, P.O. Box 9504, 2300 RA, Leiden, The Netherlands
| | - Gerard W. Canters
- Leiden Institute of Physics, Leiden University, P.O. Box 9504, 2300 RA, Leiden, The Netherlands
| | - Thijs J. Aartsma
- Leiden Institute of Physics, Leiden University, P.O. Box 9504, 2300 RA, Leiden, The Netherlands
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