Johnson-Winters, Kayunta
Publication with MATCHING institution:
- Johnson-Winters K, Davis AC, Arnold AR, ..., Enemark JH (2013) Probing the role of a conserved salt bridge in the
intramolecular electron transfer kinetics of human sulfite oxidase. Journal of Biological Inorganic Chemistry.
[IF=0.755, Cited=2, 23779234].
- Oyugi MA, Bashiri G, Baker EN, Johnson-Winters K (2017) Mechanistic insights into F420-dependent
glucose-6-phosphate dehydrogenase using isotope effects and substrate inhibition studies. Biochimica et Biophysica Acta
- Proteins and Proteomics. [IF=0.894, Cited=1, 28807886].
- Le CQ, Oyugi M, Joseph E, ..., Johnson-Winters K (2016) Effects of isoleucine 135 side chain length on the cofactor
donor-acceptor distance within F420H2:NADP+ oxidoreductase: A kinetic analysis.
Biochemistry and Biophysics Reports. [IF=0.688, Cited=1, 28955995].
- Joseph E, Le CQ, Nguyen T, ..., Johnson-Winters K (2016) Evidence of Negative Cooperativity and Half-Site Reactivity
within an F420-Dependent Enzyme: Kinetic Analysis of F420H2:NADP(+) Oxidoreductase. Biochemistry. [IF=0.753, Cited=5, 26811861].
- Oyugi MA, Bashiri G, Baker EN, Johnson-Winters K (2016) Investigating the Reaction Mechanism of
F420-Dependent Glucose-6-phosphate Dehydrogenase from Mycobacterium tuberculosis: Kinetic Analysis of the
Wild-Type and Mutant Enzymes. Biochemistry. [IF=0.753, Cited=8, 27603793].
- Astashkin AV, Rajapakshe A, Cornelison MJ, ..., Enemark JH (2012) Determination of the distance between the Mo(V) and
Fe(III) heme centers of wild type human sulfite oxidase by pulsed EPR spectroscopy. Journal of Physical Chemistry B.
[IF=0.893, Cited=14, 22229742].
- Davis AC, Johnson-Winters K, Arnold AR, ..., Enemark JH (2014) Kinetic results for mutations of conserved residues H304
and R309 of human sulfite oxidase point to mechanistic complexities. Metallomics. [IF=0.933, Cited=1, 24968320].
- Hossain MS, Le CQ, Joseph E, ..., Foss F (2015) Convenient synthesis of deazaflavin cofactor FO and its activity in
F(420)-dependent NADP reductase. Organic and Biomolecular Chemistry. [IF=0.77, Cited=12, 25827330].
Publication with MISMATCHING institution:
- Johnson-Winters K, Purpero VM, Kavana M, ..., Moran GR (2003) (4-Hydroxyphenyl)pyruvate dioxygenase from Streptomyces
avermitilis: the basis for ordered substrate addition. Biochemistry. [IF=0.753, Cited=33, 12590595].
- Johnson-Winters K, Purpero VM, Kavana M, Moran GR (2005) Accumulation of multiple intermediates in the catalytic cycle
of (4-hydroxyphenyl)pyruvate dioxygenase from Streptomyces avermitilis. Biochemistry. [IF=0.753, Cited=12, 15882057].
- Brownlee JM, Johnson-Winters K, Harrison DHT, Moran GR (2004) Structure of the ferrous form of (4-hydroxyphenyl)pyruvate
dioxygenase from Streptomyces avermitilis in complex with the therapeutic herbicide, NTBC. Biochemistry. [IF=0.753,
Cited=48, 15157070].
- Johnson-Winters K, Tollin G, Enemark JH (2010) Elucidating the catalytic mechanism of sulfite oxidizing enzymes using
structural, spectroscopic, and kinetic analyses. Biochemistry. [IF=0.753, Cited=17, 20666399].
- Johnson-Winters K, Nordstrom AR, Emesh S, ..., Enemark JH (2010) Effects of interdomain tether length and flexibility on
the kinetics of intramolecular electron transfer in human sulfite oxidase. Biochemistry. [IF=0.753, Cited=25, 20063894].
- Rajapakshe A, Johnson-Winters K, Nordstrom AR, ..., Enemark JH (2010) Characterization of chloride-depleted human
sulfite oxidase by electron paramagnetic resonance spectroscopy: experimental evidence for the role of anions in product
release. Biochemistry. [IF=0.753, Cited=14, 20491442].
- Klein EL, Raitsimring AM, Astashkin AV, ..., Enemark JH (2012) Identity of the exchangeable sulfur-containing ligand at
the Mo(V) center of R160Q human sulfite oxidase. Inorganic Chemistry. [IF=0.986, Cited=14, 22225516].
- Klein EL, Astashkin AV, Ganyushin D, ..., Enemark JH (2009) 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. [IF=0.986, Cited=21, 19402624].
- Astashkin AV, Johnson-Winters K, Klein EL, ..., Enemark JH (2007) 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. [IF=2.573, Cited=21, 17983221].
- Astashkin AV, Johnson-Winters K, Klein EL, ..., Enemark JH (2008) 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. [IF=2.573, Cited=21, 18529001].
- Johnson-Winters K, Nordstrom AR, Davis AC, ..., Enemark JH (2010) Effects of large-scale amino acid substitution in the
polypeptide tether connecting the heme and molybdenum domains on catalysis in human sulfite oxidase. Metallomics.
[IF=0.933, Cited=3, 21072368].
Publication with MISSING institution:
- Rapson TD, Astashkin AV, Johnson-Winters K, ..., Enemark JH (2010) Pulsed EPR investigations of the Mo(V) centers of the
R55Q and R55M variants of sulfite dehydrogenase from Starkeya novella. Journal of Biological Inorganic Chemistry.
[IF=0.755, Cited=9, 20084533].
- Le CQ, Joseph E, Nguyen T, Johnson-Winters K (2015) Optimization of Expression and Purification of Recombinant
Archeoglobus fulgidus F420H2:NADP+ Oxidoreductase, an F420 Cofactor Dependent Enzyme. Protein Journal. [IF=0.728,
Cited=3, 26493287].
- Astashkin AV, Klein EL, Ganyushin D, ..., Enemark JH (2009) Exchangeable oxygens in the vicinity of the molybdenum
center of the high-pH form of sulfite oxidase and sulfite dehydrogenase. Physical Chemistry Chemical Physics. [IF=0.906,
Cited=11, 19639147].
- Bailey S, Rapson T, Johnson-Winters K, ..., Kappler U (2008) Molecular basis for enzymatic sulfite oxidation: how three
conserved active site residues shape enzyme activity. Journal of Biological Chemistry. [IF=1.122, Cited=17, 19004819].