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Charles Yocum

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Alan Commet; Nicholas Boswell; Charles F Yocum; Hana Popelka
pH optimum of the photosystem II H₂O oxidation reaction: effects of PsbO, the manganese-stabilizing protein, Cl- retention, and deprotonation of a component required for O₂ evolution activity.
Johnna L Roose; Charles F Yocum; Hana Popelkova
Binding stoichiometry and affinity of the manganese-stabilizing protein affects redox reactions on the oxidizing side of photosystem II.
Hana Popelkova; Charles F Yocum
PsbO, the manganese-stabilizing protein: analysis of the structure-function relations that provide insights into its role in photosystem II.

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All Publications

2012: Alan Commet; Nicholas Boswell; Charles F Yocum; Hana Popelka
pH optimum of the photosystem II H₂O oxidation reaction: effects of PsbO, the manganese-stabilizing protein, Cl- retention, and deprotonation of a component required for O₂ evolution activity.
Biochemistry 2012;51(18):3808-18.
2011: Johnna L Roose; Charles F Yocum; Hana Popelkova
Binding stoichiometry and affinity of the manganese-stabilizing protein affects redox reactions on the oxidizing side of photosystem II.
Biochemistry 2011;50(27):5988-98.
2011: Hana Popelkova; Charles F Yocum
PsbO, the manganese-stabilizing protein: analysis of the structure-function relations that provide insights into its role in photosystem II.
Journal of photochemistry and photobiology. B, Biology 2011;104(1-2):179-90.
2010: Hana Popelkova; Alan Commet; Charles F Yocum
The double mutation ΔL6MW241F in PsbO, the photosystem II manganese stabilizing protein, yields insights into the evolution of its structure and function.
FEBS letters 2010;584(18):4009-14.
2010: Johnna L Roose; Charles F Yocum; Hana Popelkova
Function of PsbO, the photosystem II manganese-stabilizing protein: probing the role of aspartic acid 157.
Biochemistry 2010;49(29):6042-51.
2009: Hana Popelkova; Alan Commet; Charles F Yocum
Asp157 is required for the function of PsbO, the photosystem II manganese stabilizing protein.
Biochemistry 2009;48(50):11920-8.
2008: Hana Popelkova; Alan Commet; Thomas Kuntzleman; Charles F Yocum
Inorganic cofactor stabilization and retention: the unique functions of the two PsbO subunits of eukaryotic photosystem II.
Biochemistry 2008;47(47):12593-600.
2008: Aaron J Wyman; Hana Popelkova; Charles F Yocum
Site-directed mutagenesis of conserved C-terminal tyrosine and tryptophan residues of PsbO, the photosystem II manganese-stabilizing protein, alters its activity and fluorescence properties.
Biochemistry 2008;47(24):6490-8.
2007: Hana Popelková; Charles F Yocum
Current status of the role of Cl(-) ion in the oxygen-evolving complex.
Photosynthesis research 2007;93(1-3):111-21.
2006: Hana Popelkova; Scott D Betts; Nikos Lydakis-Symantiris; Michael M Im; Ellen Swenson; Charles F Yocum
Mutagenesis of basic residues R151 and R161 in manganese-stabilizing protein of photosystem II causes inefficient binding of chloride to the oxygen-evolving complex.
Biochemistry 2006;45(9):3107-15.
2005: James Penner-Hahn; Charles F Yocum
Biochemistry. The photosynthesis "oxygen clock" gets a new number.
Science (New York, N.Y.) 2005;310(5750):982-3.
2005: Aaron J Wyman; Charles F Yocum
Structure and activity of the photosystem II manganese-stabilizing protein: role of the conserved disulfide bond.
Photosynthesis research 2005;85(3):359-72.
2005: Aaron J Wyman; Charles F Yocum
Assembly and function of the photosystem II manganese stabilizing protein: lessons from its natively unfolded behavior.
Photosynthesis research 2005;84(1-3):283-8.
2005: Thomas Kuntzleman; Charles F Yocum
Reduction-induced inhibition and Mn(II) release from the photosystem II oxygen-evolving complex by hydroquinone or NH2OH are consistent with a Mn(III)/Mn(III)/Mn(IV)/Mn(IV) oxidation state for the dark-adapted enzyme.
Biochemistry 2005;44(6):2129-42.
2004: Kirk A Vander Meulen; Amanda Hobson; Charles F Yocum
Reconstitution of the photosystem II Ca2+ binding site.
Biochimica et biophysica acta 2004;1655(1-3):179-83.
2003: Hana Popelkova; Michael M Im; Charles F Yocum
Binding of manganese stabilizing protein to photosystem II: identification of essential N-terminal threonine residues and domains that prevent nonspecific binding.
Biochemistry 2003;42(20):6193-200.
2002: Hana Popelkova; Michael M Im; Charles F Yocum
N-terminal truncations of manganese stabilizing protein identify two amino acid sequences required for binding of the eukaryotic protein to photosystem II and reveal the absence of one binding-related sequence in cyanobacteria.
Biochemistry 2002;41(31):10038-45.
2002: Hana Popelkova; Michael M Im; John C D'Auria; Scott D Betts; Nikos Lydakis-Simantiris; Charles F Yocum
N-terminus of the photosystem II manganese stabilizing protein: effects of sequence elongation and truncation.
Biochemistry 2002;41(8):2702-11.
2002: Kirk A Vander Meulen; Amanda Hobson; Charles F Yocum
Calcium depletion modifies the structure of the photosystem II O(2)-evolving complex.
Biochemistry 2002;41(3):958-66.
2001: S K Hong; S A Pawlikowski; Kirk A Vander Meulen; Charles F Yocum
The oxidation state of the photosystem II manganese cluster influences the structure of manganese stabilizing protein.
Biochimica et biophysica acta 2001;1504(2-3):262-74.
1999: Nikos Lydakis-Simantiris; Scott D Betts; Charles F Yocum
Leucine 245 is a critical residue for folding and function of the manganese stabilizing protein of photosystem II.
Biochemistry 1999;38(47):15528-35.
1999: RS Hutchison; J J Steenhuis; Charles F Yocum; M R Razeghifard; Bridgette A Barry
Deprotonation of the 33-kDa, extrinsic, manganese-stabilizing subunit accompanies photooxidation of manganese in photosystem II.
The Journal of biological chemistry 1999;274(45):31987-95.
1999: Charles F Yocum; vincent pecoraro
Recent advances in the understanding of the biological chemistry of manganese.
Current opinion in chemical biology 1999;3(2):182-7.
1999: Nikos Lydakis-Simantiris; RS Hutchison; Scott D Betts; Bridgette A Barry; Charles F Yocum
Manganese stabilizing protein of photosystem II is a thermostable, natively unfolded polypeptide.
Biochemistry 1999;38(1):404-14.
1998: Scott D Betts; Nikos Lydakis-Simantiris; Jeannine R Ross; Charles F Yocum
The carboxyl-terminal tripeptide of the manganese-stabilizing protein is required for quantitative assembly into photosystem II and for high rates of oxygen evolution activity.
Biochemistry 1998;37(40):14230-6.
1998: RS Hutchison; Scott D Betts; Charles F Yocum; Bridgette A Barry
Conformational changes in the extrinsic manganese stabilizing protein can occur upon binding to the photosystem II reaction center: an isotope editing and FT-IR study.
Biochemistry 1998;37(16):5643-53.
1997: Scott D Betts; Jeannine R Ross; Eran Pichersky; Charles F Yocum
Mutation Val235Ala weakens binding of the 33-kDa manganese stabilizing protein of photosystem II to one of two sites.
Biochemistry 1997;36(13):4047-53.
1996: Scott D Betts; Jeannine R Ross; K U Hall; Eran Pichersky; Charles F Yocum
Functional reconstitution of photosystem II with recombinant manganese-stabilizing proteins containing mutations that remove the disulfide bridge.
Biochimica et biophysica acta 1996;1274(3):135-42.
1996: Scott D Betts; Jeannine R Ross; Eran Pichersky; Charles F Yocum
Cold-sensitive assembly of a mutant manganese-stabilizing protein caused by a Val to Ala replacement.
Biochemistry 1996;35(20):6302-7.
1994: S Kim; Eran Pichersky; Charles F Yocum
Topological studies of spinach 22 kDa protein of Photosystem II.
Biochimica et biophysica acta 1994;1188(3):339-48.
1994: Scott D Betts; T M Hachigian; Eran Pichersky; Charles F Yocum
Reconstitution of the spinach oxygen-evolving complex with recombinant Arabidopsis manganese-stabilizing protein.
Plant molecular biology 1994;26(1):117-30.
1994: J C de Paula; A Liefshitz; S Hinsley; W Lin; V Chopra; K Long; S A Williams; S Belts; Charles F Yocum
Structure-function relationships in the 47-kDa antenna protein and its complex with the photosystem II reaction center core: insights from picosecond fluorescence decay kinetics and resonance Raman spectroscopy.
Biochemistry 1994;33(6):1455-66.
1992: S Kim; P Sandusky; N R Bowlby; Ruedi Aebersold; Beverley R Green; S Vlahakis; Charles F Yocum; Eran Pichersky
Characterization of a spinach psbS cDNA encoding the 22 kDa protein of photosystem II.
FEBS letters 1992;314(1):67-71.
1992: R Mei; Charles F Yocum
Comparative properties of hydroquinone and hydroxylamine reduction of the Ca(2+)-stabilized O2-evolving complex of photosystem II: reductant-dependent Mn2+ formation and activity inhibition.
Biochemistry 1992;31(36):8449-54.
1991: R Mei; Charles F Yocum
Calcium retards NH2OH inhibition of O2 evolution activity by stabilization of Mn2+ binding to photosystem II.
Biochemistry 1991;30(31):7836-42.
1990: Jan P Dekker; Scott D Betts; Charles F Yocum; Egbert J Boekema
Characterization by electron microscopy of isolated particles and two-dimensional crystals of the CP47-D1-D2-cytochrome b-559 complex of photosystem II.
Biochemistry 1990;29(13):3220-5.
1990: J Petersen; Jan P Dekker; N R Bowlby; D F Ghanotakis; Charles F Yocum; Gerald T Babcock
EPR characterization of the CP47-D1-D2-cytochrome b-559 complex of photosystem II.
Biochemistry 1990;29(13):3226-31.
1989: Gerald T Babcock; Bridgette A Barry; Richard J Debus; Curtis W Hoganson; M Atamian; Lee McIntosh; I Sithole; Charles F Yocum
Water oxidation in photosystem II: from radical chemistry to multielectron chemistry.
Biochemistry 1989;28(25):9557-65.
1989: R Brouquisse; P Weigel; David Rhodes; Charles F Yocum; Andrew D Hanson
Evidence for a ferredoxin-dependent choline monooxygenase from spinach chloroplast stroma.
Plant physiology 1989;90(1):322-9.
1989: D F Ghanotakis; J C de Paula; D M Demetriou; N R Bowlby; J Petersen; Gerald T Babcock; Charles F Yocum
Isolation and characterization of the 47 kDa protein and the D1-D2-cytochrome b-559 complex.
Biochimica et biophysica acta 1989;974(1):44-53.
1987: J P Hosler; Charles F Yocum
Regulation of Cyclic Photophosphorylation during Ferredoxin-Mediated Electron Transport : Effect of DCMU and the NADPH/NADP Ratio.
Plant physiology 1987;83(4):965-9.
1982: S J Robinson; C S Deroo; Charles F Yocum
Photosynthetic Electron Transfer in Preparations of the Cyanobacterium Spirulina platensis.
Plant physiology 1982;70(1):154-61.
1981: Charles F Yocum; C T Yerkes; R E Blankenship; R R Sharp; Gerald T Babcock
Stoichiometry, inhibitor sensitivity, and organization of manganese associated with photosynthetic oxygen evolution.
Proceedings of the National Academy of Sciences of the United States of America 1981;78(12):7507-11.
1981: J A Guikema; Charles F Yocum
Photophosphorylation Associated with Photosystem II: IV. KINETIC ANALYSES OF PHOTOSYSTEM II CYCLIC PHOTOPHOSPHORYLATION ACTIVITY: EVIDENCE FOR TWO CYCLIC REACTIONS.
Plant physiology 1981;67(5):887-91.
1977: S J Robinson; Charles F Yocum; H Ikuma
Inhibition of chloroplast electron transport reactions by trifluralin and diallate.
Plant physiology 1977;60(6):840-4.
1977: Charles F Yocum
Photophosphorylation Associated with Photosystem II: III. Characterization of Uncoupling, Energy Transfer Inhibition, and Proton Uptake Reactions Associated with Photosystem II Cyclic Photophosphorylation.
Plant physiology 1977;60(4):597-601.
1977: Charles F Yocum
Photophosphorylation Associated with Photosystem II: II. Effects of Electron Donors, Catalyst Oxidation, and Electron Transport Inhibitors on Photosystem II Cyclic Photophosphorylation.
Plant physiology 1977;60(4):592-6.
1977: Charles F Yocum; J A Guikema
Photophosphorylation Associated with Photosystem II: I. Photosystem II Cyclic Photophosphorylation Catalyzed by p-Phenylenediamine.
Plant physiology 1977;59(1):33-7.