Search Results - "Jodts, Richard J"
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1
The Elusive 5′-Deoxyadenosyl Radical: Captured and Characterized by Electron Paramagnetic Resonance and Electron Nuclear Double Resonance Spectroscopies
Published in Journal of the American Chemical Society (31-07-2019)“…The 5′-deoxyadenosyl radical (5′-dAdo·) abstracts a substrate H atom as the first step in radical-based transformations catalyzed by…”
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A mixed-valent Fe(II)Fe(III) species converts cysteine to an oxazolone/thioamide pair in methanobactin biosynthesis
Published in Proceedings of the National Academy of Sciences - PNAS (29-03-2022)“…SignificanceMethanobactins (Mbns), copper-binding peptidic compounds produced by some bacteria, are candidate therapeutics for human diseases of copper…”
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3
End-On Copper(I) Superoxo and Cu(II) Peroxo and Hydroperoxo Complexes Generated by Cryoreduction/Annealing and Characterized by EPR/ENDOR Spectroscopy
Published in Journal of the American Chemical Society (12-01-2022)“…In this report, we investigate the physical and chemical properties of monocopper Cu(I) superoxo and Cu(II) peroxo and hydroperoxo complexes. These are…”
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Coordination of the Copper Centers in Particulate Methane Monooxygenase: Comparison between Methanotrophs and Characterization of the Cu C Site by EPR and ENDOR Spectroscopies
Published in Journal of the American Chemical Society (22-09-2021)“…In nature, methane is oxidized to methanol by two enzymes, the iron-dependent soluble methane monooxygenase (sMMO) and the copper-dependent particulate MMO…”
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5
Stern and Diffuse Layer Interactions during Ionic Strength Cycling
Published in Journal of physical chemistry. C (19-08-2021)“…Second harmonic generation amplitude and phase measurements are acquired in real time from fused silica:water interfaces that are subjected to ionic strength…”
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6
Initial Steps in Methanobactin Biosynthesis: Substrate Binding by the Mixed-Valent Diiron Enzyme MbnBC
Published in Biochemistry (Easton) (07-05-2024)“…The MbnBC enzyme complex converts cysteine residues in a peptide substrate, MbnA, to oxazolone/thioamide groups during the biosynthesis of copper chelator…”
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7
Copper binding by a unique family of metalloproteins is dependent on kynurenine formation
Published in Proceedings of the National Academy of Sciences - PNAS (08-06-2021)“…Some methane-oxidizing bacteria use the ribosomally synthesized, posttranslationally modified natural product methanobactin (Mbn) to acquire copper for their…”
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Characterization by ENDOR Spectroscopy of the Iron–Alkyl Bond in a Synthetic Counterpart of Organometallic Intermediates in Radical SAM Enzymes
Published in Journal of the American Chemical Society (28-09-2022)“…Members of the radical S-adenosyl-l-methionine (SAM) enzyme superfamily initiate a broad spectrum of radical transformations through reductive cleavage of SAM…”
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9
Mechanism of Radical S‑Adenosyl- l-methionine Adenosylation: Radical Intermediates and the Catalytic Competence of the 5′-Deoxyadenosyl Radical
Published in Journal of the American Chemical Society (23-03-2022)“…Radical S-adenosyl-l-methionine (SAM) enzymes employ a [4Fe–4S] cluster and SAM to initiate diverse radical reactions via either H-atom abstraction or…”
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10
Computational Description of Alkylated Iron–Sulfur Organometallic Clusters
Published in Journal of the American Chemical Society (28-06-2023)“…The radical S-adenosyl methionine (SAM) enzyme superfamily has widespread roles in hydrogen atom abstraction reactions of crucial biological importance. In…”
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11
Coordination of the Copper Centers in Particulate Methane Monooxygenase: Comparison between Methanotrophs and Characterization of the CuC Site by EPR and ENDOR Spectroscopies
Published in Journal of the American Chemical Society (22-09-2021)“…In nature, methane is oxidized to methanol by two enzymes, the iron-dependent soluble methane monooxygenase (sMMO) and the copper-dependent particulate MMO…”
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12
Active-Site Controlled, Jahn-Teller Enabled Regioselectivity in Reductive S-C Bond Cleavage of S -Adenosylmethionine in Radical SAM Enzymes
Published in Journal of the American Chemical Society (13-01-2021)“…Catalysis by canonical radical -adenosyl-l-methionine (SAM) enzymes involves electron transfer (ET) from [4Fe-4S] to SAM, generating an R S radical that…”
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13
Spectroscopic and Computational Comparisons of Thiolate-Ligated Ferric Nonheme Complexes to Cysteine Dioxygenase: Second-Sphere Effects on Substrate (Analogue) Positioning
Published in Inorganic chemistry (16-12-2019)“…Parallel spectroscopic and computational studies of iron(III) cysteine dioxygenase (CDO) and synthetic models are presented. The synthetic complexes utilize…”
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14
Radical SAM Enzyme Spore Photoproduct Lyase: Properties of the Ω Organometallic Intermediate and Identification of Stable Protein Radicals Formed during Substrate-Free Turnover
Published in Journal of the American Chemical Society (28-10-2020)“…Spore photoproduct lyase is a radical S-adenosyl-l-methionine (SAM) enzyme with the unusual property that addition of SAM to the [4Fe-4S]1+ enzyme absent…”
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15
Product analogue binding identifies the copper active site of particulate methane monooxygenase
Published in Nature catalysis (01-12-2023)“…Nature’s primary methane-oxidizing enzyme, the membrane-bound particulate methane monooxygenase (pMMO), catalyses the oxidation of methane to methanol. Copper…”
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Stern and Diffuse Layer Interactions During Ionic Strength Cycling
Published 05-06-2021“…Second harmonic generation amplitude and phase measurements are acquired in real time from fused silica:water interfaces that are subjected to ionic strength…”
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