Kayunta Johnson‐Winters

715 citations

25 papers · 604 · h-index 15

Impact in

Renewable Energy, Sustainability and the Environment top 10%
- Metalloenzymes and iron-sulfur proteins
- Electrocatalysts for Energy Conversion
Inorganic Chemistry top 5%
- Metal-Catalyzed Oxygenation Mechanisms

Papers in

Renewable Energy, Sustainability and the Environment 14
- Metalloenzymes and iron-sulfur proteins 14
Molecular Biology 13
- Biochemical and Molecular Research 5
- Microbial metabolism and enzyme function 3

Co-authors: John H. Enemark (14 shared papers)Graham R. Moran (3 shared papers)Andrei V. Astashkin (10 shared papers)June M. Brownlee (1 shared paper)David H. T. Harrison (1 shared paper)Eric L. Klein (5 shared papers)Gordon Tollin (5 shared papers)Vincent M. Purpero (2 shared papers)
Journals: Biochemistry (8 papers)Metallomics (2 papers)Journal of Biological Chemistry (2 papers)Inorganic Chemistry (2 papers)Journal of the American Chemical Society (2 papers)
Partner nations: United States New Zealand Australia

In The Last Decade

Kayunta Johnson‐Winters

25 papers receiving 596 citations

Peers

Countries citing papers authored by Kayunta Johnson‐Winters

Since Specialization

Citations

This map shows the geographic impact of Kayunta Johnson‐Winters's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Kayunta Johnson‐Winters with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kayunta Johnson‐Winters more than expected).

Fields of papers citing papers by Kayunta Johnson‐Winters

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Kayunta Johnson‐Winters. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Kayunta Johnson‐Winters. The network helps show where Kayunta Johnson‐Winters may publish in the future.

Co-authors

The 25 scholars most cited alongside Kayunta Johnson‐Winters, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Kayunta Johnson‐Winters Line = papers co-authored together Kayunta Johnson‐Winters links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

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#	Work
1	Structure of the Ferrous Form of (4-Hydroxyphenyl)pyruvate Dioxygenase from Streptomyces avermitilis in Complex with the Therapeutic Herbicide, NTBC^, Biochemistry ·June M. Brownlee, Kayunta Johnson‐Winters, David H. T. Harrison, Graham R. Moran	2004	110
2	(4-Hydroxyphenyl)pyruvate Dioxygenase from Streptomyces avermitilis: The Basis for Ordered Substrate Addition Biochemistry ·Kayunta Johnson‐Winters, Vincent M. Purpero, Michael Kavana, Tamara Nelson, Graham R. Moran	2003	64
3	Effects of Interdomain Tether Length and Flexibility on the Kinetics of Intramolecular Electron Transfer in Human Sulfite Oxidase Biochemistry ·Kayunta Johnson‐Winters, Anna R. Nordstrom, Safia Emesh, Andrei V. Astashkin, Asha Rajapakshe, Robert E. Berry, Gordon Tollin, John H. Enemark	2010	39
4	Structural Studies of the Molybdenum Center of the Pathogenic R160Q Mutant of Human Sulfite Oxidase by Pulsed EPR Spectroscopy and ¹⁷O and ³³S Labeling Journal of the American Chemical Society ·Andrei V. Astashkin, Kayunta Johnson‐Winters, Eric L. Klein, Changjian Feng, Heather L. Wilson, K.V. Rajagopalan, Arnold M. Raitsimring, John H. Enemark	2008	38
5	Elucidating the Catalytic Mechanism of Sulfite Oxidizing Enzymes Using Structural, Spectroscopic, and Kinetic Analyses Biochemistry ·Kayunta Johnson‐Winters, Gordon Tollin, John H. Enemark	2010	35
6	Direct Demonstration of the Presence of Coordinated Sulfate in the Reaction Pathway of Arabidopsis thaliana Sulfite Oxidase Using ³³S Labeling and ESEEM Spectroscopy Journal of the American Chemical Society ·Andrei V. Astashkin, Kayunta Johnson‐Winters, Eric L. Klein, Robert S. Byrne, Russ Hille, Arnold M. Raitsimring, John H. Enemark	2007	34
7	Direct Detection and Characterization of Chloride in the Active Site of the Low-pH Form of Sulfite Oxidase Using Electron Spin Echo Envelope Modulation Spectroscopy, Isotopic Labeling, and Density Functional Theory Calculations Inorganic Chemistry ·Eric L. Klein, Andrei V. Astashkin, Dmitry Ganyushin, Christoph Riplinger, Kayunta Johnson‐Winters, Frank Neese, John H. Enemark	2009	31
8	Molecular Basis for Enzymatic Sulfite Oxidation Journal of Biological Chemistry ·Susan Bailey, Trevor D. Rapson, Kayunta Johnson‐Winters, Andrei V. Astashkin, John H. Enemark, Ulrike Kappler	2008	29
9	Identity of the Exchangeable Sulfur-Containing Ligand at the Mo(V) Center of R160Q Human Sulfite Oxidase Inorganic Chemistry ·Eric L. Klein, Arnold M. Raitsimring, Andrei V. Astashkin, Asha Rajapakshe, Kayunta Johnson‐Winters, Anna R. Arnold, Alexey Potapov, Daniella Goldfarb, John H. Enemark	2012	28
10	Determination of the Distance between the Mo(V) and Fe(III) Heme Centers of Wild Type Human Sulfite Oxidase by Pulsed EPR Spectroscopy The Journal of Physical Chemistry B ·Andrei V. Astashkin, Asha Rajapakshe, Matthew J. Cornelison, Kayunta Johnson‐Winters, John H. Enemark	2012	27
11	Convenient synthesis of deazaflavin cofactor FO and its activity in F₄₂₀-dependent NADP reductase Organic & Biomolecular Chemistry ·Mohammad S. Hossain, Cuong Q. Le, Ebenezer Joseph, Quoc Toan Nguyen, Kayunta Johnson‐Winters, Frank W. Foss	2015	25
12	Accumulation of Multiple Intermediates in the Catalytic Cycle of (4-Hydroxyphenyl)pyruvate Dioxygenase from Streptomyces avermitilis Biochemistry ·Kayunta Johnson‐Winters, Vincent M. Purpero, Michael Kavana, Graham R. Moran	2005	21
13	Exchangeable oxygens in the vicinity of the molybdenum center of the high-pH form of sulfite oxidase and sulfite dehydrogenase Physical Chemistry Chemical Physics ·Andrei V. Astashkin, Eric L. Klein, Dmitry Ganyushin, Kayunta Johnson‐Winters, Frank Neese, Ulrike Kappler, John H. Enemark	2009	21
14	Characterization of Chloride-Depleted Human Sulfite Oxidase by Electron Paramagnetic Resonance Spectroscopy: Experimental Evidence for the Role of Anions in Product Release Biochemistry ·Asha Rajapakshe, Kayunta Johnson‐Winters, Anna R. Nordstrom, Kimberly T. Meyers, Safia Emesh, Andrei V. Astashkin, John H. Enemark	2010	21
15	Investigating the Reaction Mechanism of F₄₂₀-Dependent Glucose-6-phosphate Dehydrogenase from Mycobacterium tuberculosis: Kinetic Analysis of the Wild-Type and Mutant Enzymes Biochemistry ·Mercy Oyugi, Ghader Bashiri, Edward N. Baker, Kayunta Johnson‐Winters	2016	14
16	Pulsed EPR investigations of the Mo(V) centers of the R55Q and R55M variants of sulfite dehydrogenase from Starkeya novella JBIC Journal of Biological Inorganic Chemistry ·Trevor D. Rapson, Andrei V. Astashkin, Kayunta Johnson‐Winters, Paul V. Bernhardt, Ulrike Kappler, Arnold M. Raitsimring, John H. Enemark	2010	13
17	Evidence of Negative Cooperativity and Half-Site Reactivity within an F₄₂₀-Dependent Enzyme: Kinetic Analysis of F₄₂₀H₂:NADP⁺ Oxidoreductase Biochemistry ·Ebenezer Joseph, Cuong Q. Le, Quoc Toan Nguyen, Mercy Oyugi, Mohammad S. Hossain, Frank W. Foss, Kayunta Johnson‐Winters	2016	10
18	Optimization of Expression and Purification of Recombinant Archeoglobus fulgidus F420H2:NADP+ Oxidoreductase, an F420 Cofactor Dependent Enzyme The Protein Journal ·Cuong Q. Le, Ebenezer Joseph, Quoc Toan Nguyen, Kayunta Johnson‐Winters	2015	8
19	Kinetic results for mutations of conserved residues H304 and R309 of human sulfite oxidase point to mechanistic complexities Metallomics ·Amanda C. Davis, Kayunta Johnson‐Winters, Anna R. Arnold, Gordon Tollin, John H. Enemark	2014	8
20	Probing the role of a conserved salt bridge in the intramolecular electron transfer kinetics of human sulfite oxidase JBIC Journal of Biological Inorganic Chemistry ·Kayunta Johnson‐Winters, Amanda C. Davis, Anna R. Arnold, Robert E. Berry, Gordon Tollin, John H. Enemark	2013	8

About Kayunta Johnson‐Winters

Kayunta Johnson‐Winters is a scholar working on Renewable Energy, Sustainability and the Environment, Molecular Biology, Inorganic Chemistry, Biochemistry and Electrical and Electronic Engineering, having authored 25 papers that have together received 604 indexed citations. Recurring topics across this work include Metalloenzymes and iron-sulfur proteins (14 papers), Metal-Catalyzed Oxygenation Mechanisms (8 papers), Advanced battery technologies research (6 papers), Biochemical and Molecular Research (5 papers), Sulfur Compounds in Biology (4 papers), Enzyme Structure and Function (4 papers), Amino Acid Enzymes and Metabolism (3 papers) and Microbial metabolism and enzyme function (3 papers). The work is most often cited by research in Renewable Energy, Sustainability and the Environment (245 citations), Inorganic Chemistry (201 citations), Biochemistry (67 citations), Biophysics (34 citations) and Pollution (61 citations). Kayunta Johnson‐Winters has collaborated with scholars based in United States, New Zealand and Australia. Frequent co-authors include John H. Enemark, Graham R. Moran, Andrei V. Astashkin, June M. Brownlee, David H. T. Harrison, Eric L. Klein, Gordon Tollin, Vincent M. Purpero, Michael Kavana and Arnold M. Raitsimring. Their work appears in journals such as Biochemistry, Metallomics, Journal of Biological Chemistry, Inorganic Chemistry and Journal of the American Chemical Society.

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