• 3437 Citations
  • 34 h-Index
1984 …2022
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Research Output 1984 2019

  • 3437 Citations
  • 34 h-Index
  • 88 Article
  • 2 Chapter
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Article
2019

Bound manganese oxides capable of reducing the bacteriochlorophyll dimer of modified reaction centers from Rhodobacter sphaeroides

Espiritu, E., Chamberlain, K. D., Williams, J. A. C. & Allen, J. P., Jan 1 2019, (Accepted/In press) In : Photosynthesis research.

Research output: Contribution to journalArticle

Bacteriochlorophylls
Rhodobacter sphaeroides
manganese oxides
Dimers
Oxides
polarization (charge separation)
markers
Hydrogen bonds
hydrogen bonds
electron transfer
2018

Influence of the Electrochemical Properties of the Bacteriochlorophyll Dimer on Triplet Energy-Transfer Dynamics in Bacterial Reaction Centers

Mandal, S., Espiritu, E., Akram, N., Lin, S., Williams, J., Allen, J. & Woodbury, N., Nov 8 2018, In : Journal of Physical Chemistry B. 122, 44, p. 10097-10107 11 p.

Research output: Contribution to journalArticle

Bacteriochlorophylls
Energy Transfer
Electrochemical properties
Dimers
Energy transfer
2017
1 Citation (Scopus)

Binding and Energetics of Electron Transfer between an Artificial Four-Helix Mn-Protein and Reaction Centers from Rhodobacter sphaeroides

Espiritu, E., Olson, T. L., Williams, J. & Allen, J., Dec 12 2017, In : Biochemistry. 56, 49, p. 6460-6469 10 p.

Research output: Contribution to journalArticle

Rhodobacter sphaeroides
Electrons
Bacteriochlorophylls
Proteins
Dimers
6 Citations (Scopus)

Biochemical and spectroscopic characterization of dinuclear Mn-sites in artificial four-helix bundle proteins

Olson, T. L., Espiritu, E., Edwardraja, S., Canarie, E., Flores, M., Williams, J., Ghirlanda, G. & Allen, J., Dec 1 2017, In : Biochimica et Biophysica Acta - Bioenergetics. 1858, 12, p. 945-954 10 p.

Research output: Contribution to journalArticle

Proteins
Hydrogen Peroxide
Metals
Electrons
Oxygen
6 Citations (Scopus)

Mechanism of Triplet Energy Transfer in Photosynthetic Bacterial Reaction Centers

Mandal, S., Carey, A. M., Locsin, J., Gao, B. R., Williams, J., Allen, J., Lin, S. & Woodbury, N., Jul 13 2017, In : Journal of Physical Chemistry B. 121, 27, p. 6499-6510 12 p.

Research output: Contribution to journalArticle

Photosynthetic Reaction Center Complex Proteins
carotenoids
Energy Transfer
Carotenoids
Energy transfer
2016
8 Citations (Scopus)

Design of dinuclear manganese cofactors for bacterial reaction centers

Olson, T. L., Espiritu, E., Edwardraja, S., Simmons, C. R., Williams, J., Ghirlanda, G. & Allen, J., May 1 2016, In : Biochimica et Biophysica Acta - Bioenergetics. 1857, 5, p. 539-547 9 p.

Research output: Contribution to journalArticle

Manganese
Proteins
Metals
Electrons
Cytochromes c2
2015
7 Citations (Scopus)

Copper Environment in Artificial Metalloproteins Probed by Electron Paramagnetic Resonance Spectroscopy

Flores, M., Olson, T. L., Wang, D., Edwardraja, S., Shinde, S., Williams, J., Ghirlanda, G. & Allen, J., Oct 29 2015, In : Journal of Physical Chemistry B. 119, 43, p. 13825-13833 9 p.

Research output: Contribution to journalArticle

Metalloproteins
Paramagnetic resonance
Copper
electron paramagnetic resonance
Metals
2014
electron paramagnetic resonance spectroscopy
Electron Spin Resonance Spectroscopy
electronics
Electronic structure
Paramagnetic resonance
9 Citations (Scopus)

Interface for light-driven electron transfer by photosynthetic complexes across block copolymer membranes

Kuang, L., Olson, T. L., Lin, S., Flores, M., Jiang, Y., Zheng, W., Williams, J., Allen, J. & Liang, H., Mar 6 2014, In : Journal of Physical Chemistry Letters. 5, 5, p. 787-791 5 p.

Research output: Contribution to journalArticle

Photosynthetic Reaction Center Complex Proteins
block copolymers
Block copolymers
electron transfer
membranes
8 Citations (Scopus)

The three-dimensional structures of bacterial reaction centers

Olson, T. L., Williams, J. & Allen, J., 2014, In : Photosynthesis Research. 120, 1-2, p. 87-98 12 p.

Research output: Contribution to journalArticle

Bacterial Structures
Photosynthesis
photosynthesis
electron transfer
Blastochloris viridis
2013
13 Citations (Scopus)
Metalloproteins
Oxidation-Reduction
Proteins
Redox reactions
Manganese
2012
15 Citations (Scopus)

Light-driven oxygen production from superoxide by Mn-binding bacterial reaction centers

Allen, J., Olson, T. L., Oyala, P., Lee, W. J., Tufts, A. A. & Williams, J., Feb 14 2012, In : Proceedings of the National Academy of Sciences of the United States of America. 109, 7, p. 2314-2318 5 p.

Research output: Contribution to journalArticle

Superoxides
Photosynthetic Reaction Center Complex Proteins
Oxygen
Light
Photosystem II Protein Complex
2011
10 Citations (Scopus)
carotenoids
Carotenoids
Excited states
proteins
Proteins
11 Citations (Scopus)

Energetics for Oxidation of a Bound Manganese Cofactor in Modified Bacterial Reaction Centers

Kálmán, L., Williams, J. & Allen, J., Apr 26 2011, In : Biochemistry. 50, 16, p. 3310-3320 11 p.

Research output: Contribution to journalArticle

Manganese
Oxidation-Reduction
Bicarbonates
Oxidation
Rate constants
9 Citations (Scopus)

Light-induced conformational changes in photosynthetic reaction centers: Impact of detergents and lipids on the electronic structure of the primary electron donor

Deshmukh, S. S., Akhavein, H., Williams, J., Allen, J. & Kálmán, L., Jun 14 2011, In : Biochemistry. 50, 23, p. 5249-5262 14 p.

Research output: Contribution to journalArticle

Photosynthetic Reaction Center Complex Proteins
Detergents
Electronic structure
Electrons
Lipids
13 Citations (Scopus)

Light-induced conformational changes in photosynthetic reaction centers: Dielectric relaxation in the vicinity of the dimer

Deshmukh, S. S., Williams, J., Allen, J. & Kálmán, L., Jan 25 2011, In : Biochemistry. 50, 3, p. 340-348 9 p.

Research output: Contribution to journalArticle

Photosynthetic Reaction Center Complex Proteins
Dielectric relaxation
Lighting
Dimers
Bacteriochlorophylls
12 Citations (Scopus)

Light-Induced Conformational Changes in Photosynthetic Reaction Centers: Redox-Regulated Proton Pathway near the Dimer

Deshmukh, S. S., Williams, J., Allen, J. & Kálmán, L., Apr 26 2011, In : Biochemistry. 50, 16, p. 3321-3331 11 p.

Research output: Contribution to journalArticle

Photosynthetic Reaction Center Complex Proteins
Dimers
Oxidation-Reduction
Protons
Light
23 Citations (Scopus)
Photosystem II Protein Complex
Photosynthesis
photosystem II
photosynthesis
Electrons
2010
2 Citations (Scopus)

Electronic structure of Fe3+ at a metal-binding site introduced in modified bacterial reaction centers

Kálmán, L., Flores, M., Williams, J. & Allen, J., 2010, In : Applied Magnetic Resonance. 37, 1, p. 27-37 11 p.

Research output: Contribution to journalArticle

electronic structure
iron
metals
manganese
carbonates
23 Citations (Scopus)

The influence of hydrogen bonds on the electronic structure of light-harvesting complexes from photosynthetic bacteria

Uyeda, G., Williams, J., Roman, M., Mattioli, T. A. & Allen, J., Feb 16 2010, In : Biochemistry. 49, 6, p. 1146-1159 14 p.

Research output: Contribution to journalArticle

Photosynthetic Reaction Center Complex Proteins
Electronic structure
Hydrogen
Bacteria
Hydrogen bonds
2009
8 Citations (Scopus)

Effect of anions on the binding and oxidation of divalent manganese and iron in modified bacterial reaction centers

Tang, K., Williams, J., Allen, J. & Kálmán, L., 2009, In : Biophysical Journal. 96, 8, p. 3295-3304 10 p.

Research output: Contribution to journalArticle

Manganese
Bicarbonates
Anions
Iron
Metals
10 Citations (Scopus)

EPR, ENDOR, and Special TRIPLE measurements of P•+ in wild type and modified reaction centers from Rb. sphaeroides

Allen, J., Cordova, J. M., Jolley, C. C., Murray, T. A., Schneider, J. W., Woodbury, N., Williams, J., Niklas, J., Klihm, G., Reus, M. & Lubitz, W., Jan 2009, In : Photosynthesis Research. 99, 1, p. 1-10 10 p.

Research output: Contribution to journalArticle

Electron Spin Resonance Spectroscopy
Paramagnetic resonance
electron paramagnetic resonance spectroscopy
Electrons
Aspartic Acid
31 Citations (Scopus)

Unusual temperature dependence of photosynthetic electron transfer due to protein dynamics

Wang, H., Lin, S., Katilius, E., Laser, C., Allen, J., Williams, J. & Woodbury, N., Jan 22 2009, In : Journal of Physical Chemistry B. 113, 3, p. 818-824 7 p.

Research output: Contribution to journalArticle

electron transfer
proteins
Proteins
Conformations
temperature dependence
2008
16 Citations (Scopus)

Comparison of bacterial reaction centers and photosystem II

Kálmán, L., Williams, J. & Allen, J., Oct 2008, In : Photosynthesis Research. 98, 1-3, p. 643-655 13 p.

Research output: Contribution to journalArticle

Photosystem II Protein Complex
photosystem II
electrons
Electrons
protons
2007
3 Citations (Scopus)

Changes in metal specificity due to iron ligand substitutions in reaction centers from Rhodobacter sphaeroides

Williams, J., Paddock, M. L., Way, Y. P. & Allen, J., 2007, In : Applied Magnetic Resonance. 31, 1-2, p. 45-58 14 p.

Research output: Contribution to journalArticle

Substitution reactions
Iron
Metals
substitutes
Ligands
181 Citations (Scopus)

Protein dynamics control the kinetics of initial electron transfer in photosynthesis

Wang, H., Lin, S., Allen, J., Williams, J., Blankert, S., Laser, C. & Woodbury, N., May 4 2007, In : Science. 316, 5825, p. 747-750 4 p.

Research output: Contribution to journalArticle

Photosynthesis
Electrons
Rhodobacter sphaeroides
Proteins
Tryptophan
3 Citations (Scopus)
Bacteriochlorophylls
Dimers
Rate constants
Deprotonation
Biochemistry
2006
7 Citations (Scopus)

Iron as a bound secondary electron donor in modified bacterial reaction centers

Kálmán, L., LoBrutto, R., Williams, J. & Allen, J., Nov 21 2006, In : Biochemistry. 45, 46, p. 13869-13874 6 p.

Research output: Contribution to journalArticle

Iron
Electrons
Manganese
Spectrum Analysis
Metals
2005
47 Citations (Scopus)

Design of a redox-linked active metal site: Manganese bound to bacterial reaction centers at a site resembling that of photosystem II

Thielges, M., Uyeda, G., Cámara-Artigas, A., Kálmán, L., Williams, J. & Allen, J., May 24 2005, In : Biochemistry. 44, 20, p. 7389-7394 6 p.

Research output: Contribution to journalArticle

Photosystem II Protein Complex
Manganese
Oxidation-Reduction
Catalytic Domain
Metals
3 Citations (Scopus)

Environmental control of primary photochemistry in a mutant bacterial reaction center

Haffa, A. L. M., Lin, S., LoBrutto, R., Williams, J., Taguchi, A. K. W., Allen, J. & Woodbury, N., Oct 27 2005, In : Journal of Physical Chemistry B. 109, 42, p. 19923-19928 6 p.

Research output: Contribution to journalArticle

environmental control
detergents
Photochemical reactions
Detergents
photochemical reactions
Rhodobacter sphaeroides
manganese ions
Molecular Models
Point contacts
Manganese
14 Citations (Scopus)

Proton release due to manganese binding and oxidation in modified bacterial reaction centers

Kálmán, L., Thielges, M. C., Williams, J. & Allen, J., Oct 11 2005, In : Biochemistry. 44, 40, p. 13266-13273 8 p.

Research output: Contribution to journalArticle

Manganese
Protons
Oxidation
Metals
Binding Sites
2004
26 Citations (Scopus)

Controlling the pathway of photosynthetic charge separation in bacterial reaction centers

Haffa, A. L. M., Lin, S., Williams, J., Bowen, B. P., Taguchi, A. K. W., Allen, J. & Woodbury, N., Jan 8 2004, In : Journal of Physical Chemistry B. 108, 1, p. 4-7 4 p.

Research output: Contribution to journalArticle

polarization (charge separation)
Electrons
Bacteria
electron transfer
Photosynthetic Reaction Center Complex Proteins
7 Citations (Scopus)

Dependence of tyrosine oxidation in highly oxidizing bacterial reaction centers on pH and free-energy difference

Kálmán, L., Narváez, A. J., LoBrutto, R., Williams, J. & Allen, J., Oct 12 2004, In : Biochemistry. 43, 40, p. 12905-12912 8 p.

Research output: Contribution to journalArticle

Free energy
Tyrosine
Oxidation
Temperature
Dimers
4 Citations (Scopus)

Increasing the Rate of Energy Transfer between the LHI Antenna and the Reaction Center in the Photosynthetic Bacterium Rhodobacter sphaeroides

Katiliene, Z., Katilius, E., Uyeda, G. H., Williams, J. & Woodbury, N., Mar 25 2004, In : Journal of Physical Chemistry B. 108, 12, p. 3863-3870 8 p.

Research output: Contribution to journalArticle

Energy transfer
bacteria
Bacteria
antennas
energy transfer
13 Citations (Scopus)

Trapped tyrosyl radical populations in modified reaction centers from Rhodobacter sphaeroides

Narváez, A. J., LoBrutto, R., Allen, J. & Williams, J., Nov 16 2004, In : Biochemistry. 43, 45, p. 14379-14384 6 p.

Research output: Contribution to journalArticle

Rhodobacter sphaeroides
Dimers
Tyrosine
Bacteriochlorophylls
Population
2003
10 Citations (Scopus)

Correlation of Proton Release and Electrochromic Shifts of the Optical Spectrum Due to Oxidation of Tyrosine in Reaction Centers from Rhodobacter sphaeroides

Kálmán, L., LoBrutto, R., Narváez, A. J., Williams, J. & Allen, J., Nov 18 2003, In : Biochemistry. 42, 45, p. 13280-13286 7 p.

Research output: Contribution to journalArticle

Rhodobacter sphaeroides
Dimers
Tyrosine
Protons
Bacteriochlorophylls
21 Citations (Scopus)

High Yield of Long-Lived B-Side Charge Separation at Room Temperature in Mutant Bacterial Reaction Centers

Haffa, A. L. M., Lin, S., Williams, J., Taguchi, A. K. W., Allen, J. & Woodbury, N., Nov 13 2003, In : Journal of Physical Chemistry B. 107, 45, p. 12503-12510 8 p.

Research output: Contribution to journalArticle

Bacteriochlorophylls
polarization (charge separation)
Excited states
room temperature
Monomers
28 Citations (Scopus)

Manganese oxidation by modified reaction centers from Rhodobacter sphaeroides

Kálmán, L., LoBrutto, R., Allen, J. & Williams, J., Sep 23 2003, In : Biochemistry. 42, 37, p. 11016-11022 7 p.

Research output: Contribution to journalArticle

Rhodobacter sphaeroides
Manganese
Oxidation
Electrons
Ions
8 Citations (Scopus)

Proton release upon oxidation of tyrosine in reaction centers from Rhodobacter sphaeroides

Kálmán, L., Williams, J. & Allen, J., Jun 19 2003, In : FEBS Letters. 545, 2-3, p. 193-198 6 p.

Research output: Contribution to journalArticle

Rhodobacter sphaeroides
Bacteriochlorophylls
Tyrosine
Protons
Oxidation
2002
38 Citations (Scopus)

Electronic and vibronic coupling of the special pair of bacteriochlorophylls in photosynthetic reaction centers from wild-type and mutant strains of Rhodobacter Sphaeroides

Johnson, E. T., Müh, F., Nabedryk, E., Williams, J., Allen, J., Lubitz, W., Breton, J. & Parson, W. W., Nov 14 2002, In : Journal of Physical Chemistry B. 106, 45, p. 11859-11869 11 p.

Research output: Contribution to journalArticle

Photosynthetic Reaction Center Complex Proteins
Bacteriochlorophylls
Vibrational spectroscopy
Vibrational spectra
mutations
20 Citations (Scopus)

Influence of the protein environment on the properties of a tyrosyl radical in reaction centers from Rhodobacter sphaeroides

Narváez, A. J., Kálmán, L., LoBrutto, R., Allen, J. & Williams, J., Dec 24 2002, In : Biochemistry. 41, 51, p. 15253-15258 6 p.

Research output: Contribution to journalArticle

Rhodobacter sphaeroides
Bacteriochlorophylls
Tyrosine
Substitution reactions
Dimers
53 Citations (Scopus)

Pigment-protein interactions in bacterial reaction centers and their influence on oxidation potential and spin density distribution of the primary donor

Müh, F., Lendzian, F., Roy, M., Williams, J., Allen, J. & Lubitz, W., Mar 28 2002, In : Journal of Physical Chemistry B. 106, 12, p. 3226-3236 11 p.

Research output: Contribution to journalArticle

pigments
Pigments
Dimers
Bacteriochlorophylls
density distribution
50 Citations (Scopus)

The dependence of the initial electron-transfer rate on driving force in Rhodobacter sphaeroides reaction centers

Haffa, A. L. M., Lin, S., Katilius, E., Williams, J., Taguchi, A. K. W., Allen, J. & Woodbury, N., Jul 25 2002, In : Journal of Physical Chemistry B. 106, 29, p. 7376-7384 9 p.

Research output: Contribution to journalArticle

electron transfer
Electrons
Bacteriochlorophylls
baths
Rate constants
12 Citations (Scopus)

The influence of detergents on the solubility of membrane proteins

Rosenow, M. A., Magee, C. L., Williams, J. & Allen, J., Dec 1 2002, In : Acta Crystallographica Section D: Biological Crystallography. 58, 12, p. 2076-2081 6 p.

Research output: Contribution to journalArticle

detergents
Detergents
Solubility
Amphiphiles
Membrane Proteins
2001
8 Citations (Scopus)
Amphiphiles
detergents
Crystallization
Detergents
Membrane Proteins
37 Citations (Scopus)

Electrostatic interactions between charged amino acid residues and the bacteriochlorophyll dimer in reaction centers from rhodobacter sphaeroides

Williams, J., Haffa, A. L. M., McCulley, J. L., Woodbury, N. & Allen, J., Dec 18 2001, In : Biochemistry. 40, 50, p. 15403-15407 5 p.

Research output: Contribution to journalArticle

Bacteriochlorophylls
Rhodobacter sphaeroides
Coulomb interactions
Static Electricity
Dimers
12 Citations (Scopus)

Individual interactions influence the crystalline order for membrane proteins

Camara-Artigas, A., Magee, C. L., Williams, J. & Allen, J., 2001, In : Acta Crystallographica Section D: Biological Crystallography. 57, 9, p. 1281-1286 6 p.

Research output: Contribution to journalArticle

Crystallization
Membrane Proteins
Crystalline materials
membranes
proteins
8 Citations (Scopus)

Structure of cytochrome c2 from Rhodospirillum centenum

Camara-Artigas, A., Williams, J. & Allen, J., 2001, In : Acta Crystallographica Section D: Biological Crystallography. 57, 11, p. 1498-1505 8 p.

Research output: Contribution to journalArticle

Rhodospirillum centenum
Cytochromes c2
cytochromes
Cytochromes
Proteobacteria