Research Topics
| Su LinSummaryAffiliation: Arizona State University Country: USA Publications
| Collaborators
|
Detail Information
Publications
Mechanism of carotenoid singlet excited state energy transfer in modified bacterial reaction centersSu Lin
Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287 1604, USA
J Phys Chem B 110:15556-63. 2006..This finding supports the concept that, in wild-type RCs, the carotenoid-to-P energy transfer occurs through the cofactor located at the B(B) position...
Electron transfer in the Rhodobacter sphaeroides reaction center assembled with zinc bacteriochlorophyllSu Lin
The Biodesign Institute at Arizona State University, Arizona State University, Tempe, AZ 85287 5201, USA
Proc Natl Acad Sci U S A 106:8537-42. 2009....
Comparing the temperature dependence of photosynthetic electron transfer in Chloroflexus aurantiacus and Rhodobactor sphaeroides reaction centersZhi Guo
The Biodesign Institute at Arizona State University, Arizona State University, Tempe, Arizona 85287 5201, USA
J Phys Chem B 115:11230-8. 2011..sphaeroides , along with an experimental measure of protein conformational diffusion dynamics and an experimental literature value of the free energy gap between P* and P(+)H(A)(-)...- Protein dynamics control the kinetics of initial electron transfer in photosynthesisHaiyu Wang
Biodesign Institute, Arizona State University, 1001 South McAllister Avenue, Tempe, AZ 85287 5201, USA
Science 316:747-50. 2007..These results indicate that initial photosynthetic charge separation is limited by protein dynamics rather than by a static electron transfer barrier... - Two equilibration pools of chlorophylls in the Photosystem I core antenna of Chlamydomonas reinhardtiiKrzysztof Gibasiewicz
School of Life Sciences, Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, AZ 85287 4501, USA
Photosynth Res 92:55-63. 2007..We propose that they are related to the two groups of central PSI core chlorophylls lying on the opposite sides of reaction center... - Unusual temperature dependence of photosynthetic electron transfer due to protein dynamicsHaiyu Wang
The Biodesign Institute at Arizona State University, 1001 South McAllister Avenue, Tempe, Arizona 85287 5201, USA
J Phys Chem B 113:818-24. 2009..They therefore undergo electron transfer more slowly at 10 K vs 295 K... - Bacteriochlorophyll excited-state quenching pathways in bacterial reaction centers with the primary donor oxidizedJie Pan
The Biodesign Institute at Arizona State University, Arizona State University, Tempe, Arizona 85287 5201, USA
J Phys Chem B 116:2014-22. 2012..The asymmetric charge distribution between the two halves of P in the native reaction center is effectively reversed in the mutant HF(L168)/LH(L131), and in this case, the rate of quenching decreases significantly... - Replacement of the methionine axial ligand to the primary electron acceptor A0 slows the A0- reoxidation dynamics in photosystem IV M Ramesh
School of Life Sciences, Arizona State University, Tempe, PO Box 874501, AZ 85287 4501, USA
Biochim Biophys Acta 1767:151-60. 2007..A simple energetic model for this reaction is proposed. Our findings support the model of equivalent electron transfer along both cofactor branches in Photosystem I... - Purification of the photosynthetic reaction center from Heliobacterium modesticaldumIosifina Sarrou
Department of Chemistry and Biochemistry, Arizona State University, 1711 S Rural Rd, Tempe, AZ 85287 1604, USA
Photosynth Res 111:291-302. 2012..0046, but this is not a semiquinone. Furthermore, we show that high-purity HbRCs are very stable in anoxic conditions and even remain active in the presence of oxygen under low light... - Bidirectional electron transfer in photosystem I: accumulation of A0- in A-side or B-side mutants of the axial ligand to chlorophyll A0V M Ramesh
School of Life Sciences, Department of Chemistry and Biochemistry, and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287, USA
Biochemistry 43:1369-75. 2004..The results show that both the A-branch and the B-branch of the ETC are active in PSI from Chlamydomonas reinhardtii... - Spectral and kinetic analysis of the energy coupling in the PS I-LHC I supercomplex from the green alga Chlamydomonas reinhardtii at 77 KAlexander N Melkozernov
Department of Chemistry and Biochemistry, Center for the Study of Early Events in Photosynthesis, Tempe, AZ 85287 1604, USA
Photosynth Res 86:203-15. 2005..The kinetic data are discussed based on recent structural models of the PS I-LHCI. It is proposed that the uncoupling of pigment pools may be a control mechanism that regulates energy flow in Photosystem I... - Excitation wavelength dependence of primary charge separation in reaction centers from Rhodobacter sphaeroidesHaiyu Wang
Biodesign Institute at Arizona State University and Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287 5201, USA
J Phys Chem B 112:14296-301. 2008..Instead these results are consistent with the concept that primary charge separation kinetics are controlled by the dynamics of protein conformational diffusion... - A novel photosynthetic strategy for adaptation to low-iron aquatic environmentsDevendra Chauhan
Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
Biochemistry 50:686-92. 2011..Excitation trapping and electron transfer are highly efficient, allowing cyanobacteria to avoid oxidative stress. This mechanism may be a major factor used by cyanobacteria to successfully adapt to modern low-Fe environments... - Time-resolved absorption and emission show that the CP43' antenna ring of iron-stressed synechocystis sp. PCC6803 is efficiently coupled to the photosystem I reaction center coreAlexander N Melkozernov
Department of Chemistry and Biochemistry and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, USA
Biochemistry 42:3893-903. 2003..The data indicate that there is a rapid and efficient energy transfer between the outer antenna ring and the PSI reaction center complex... - Isolation and characterization of the B798 light-harvesting baseplate from the chlorosomes of Chloroflexus aurantiacusGabriel A Montano
Graduate Program in Molecular and Cellular Biology, Arizona State University, Tempe, Arizona 85287 1604, USA
Biochemistry 42:10246-51. 2003..Energy equilibration within the Bchl a absorbing regions exhibits ultrafast kinetics. Circular dichroism spectroscopy shows no evidence for excitonically coupled Bchl a pools within the 798 nm region... - Carotenoid excited-state properties in photosynthetic purple bacterial reaction centers: effects of the protein environmentJie Pan
The Biodesign Institute at Arizona State University, Arizona State University, Tempe, Arizona 85287 5201, United States
J Phys Chem B 115:7058-68. 2011..This provides direct experimental evidence for triplet energy transfer to the carotenoid, a process that is integral to the photoprotective role of carotenoids in bacterial RCs... - Purification and characterization of the B808-866 light-harvesting complex from green filamentous bacterium Chloroflexus aurantiacusYueyong Xin
Department of Chemistry and Biochemistry and the Center for the Study of Early Events in Photosynthesis, Arizona State University, P O Box 871604, Tempe, AZ 85287 1604, USA
Photosynth Res 86:155-63. 2005..The unique properties of this light-harvesting complex may provide insights on the protein-pigment interactions in bacterial photosynthesis... - Environmental control of primary photochemistry in a mutant bacterial reaction centerArlene L M Haffa
Department of Chemistry and Biochemistry, Center for the Study of Early Events in Photosynthesis, School of Life Sciences, Arizona State University, Tempe, Arizona 85287-1604, USA
J Phys Chem B 109:19923-8. 2005.... - Excitonic interactions in wild-type and mutant PSI reaction centersKrzysztof Gibasiewicz
Department of Plant Biology and Center for the Study of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287-1601 USA
Biophys J 85:2547-59. 2003..The subpicosecond transient absorption bands decay may reflect rapid charge separation in the PSI reaction center... - High-quality manganese-doped zinc sulfide quantum rods with tunable dual-color and multiphoton emissionsZhengtao Deng
The Biodesign Institute, Arizona State University, Tempe, Arizona 85287, USA
J Am Chem Soc 133:5389-96. 2011..Our strategy provides a versatile route to programmably control the optical properties of anisotropic semiconductor nanomaterials, which may create new opportunities for photonic devices and bioimaging applications... - Electronic transitions of the Soret band of reaction centers from Rhodobacter sphaeroides studied by femtosecond transient absorbance spectroscopyHaiyu Wang
Department of Chemistry and Biochemistry, Arizona State University, and Biodesign Institute at Arizona State University, Tempe, Arizona 85287-5201, USA
J Phys Chem B 110:6956-61. 2006..Internal conversion after Soret-band excitation is the rate-limiting step for the energy-transfer process. The time constant of internal conversion for B and P is less than 300 fs, and for H it is about 500 fs... - DNA-directed artificial light-harvesting antennaPalash K Dutta
Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287 5601, USA
J Am Chem Soc 133:11985-93. 2011..Our results clearly show that DNA nanoscaffolds are promising templates for the design of artificial photonic antennas with structural characteristics that are ideal for the efficient harvesting and transport of energy... - Efficient light harvesting in a dark, hot, acidic environment: the structure and function of PSI-LHCI from Galdieria sulphurariaBalakumar Thangaraj
Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona, USA
Biophys J 100:135-43. 2011..This tight coupling helps Galdieria perform efficient light harvesting under the low-light conditions present in its natural endolithic habitat... - Protein dielectric environment modulates the electron-transfer pathway in photosynthetic reaction centersZhi Guo
The Biodesign Institute at Arizona State University, Tempe, Arizona, USA
Biophys J 103:1979-88. 2012.... - Aqueous synthesis of zinc blende CdTe/CdS magic-core/thick-shell tetrahedral-shaped nanocrystals with emission tunable to near-infraredZhengtao Deng
The Biodesign Institute, Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, USA
J Am Chem Soc 132:5592-3. 2010..The magic-core/thick-shell nanocrystals may represent an important step toward the synthesis and application of next-generation colloidal nanocrystals from solar cell conversion to intracellular imaging... - Solution Synthesis of Ultrathin Single-Crystalline SnS Nanoribbons for Photodetectors via Phase Transition and Surface ProcessingZhengtao Deng
The Biodesign Institute, and Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, United States
ACS Nano 6:6197-207. 2012..This work paves the way for the colloidal growth of low-cost, environmentally benign, single-crystalline narrow band gap semiconductor nanostructures from abundant elements for applications in photodetectors and other nanoscale devices... - Energy and electron transfer in photosystem II of a chlorophyll b-containing Synechocystis sp. PCC 6803 mutantDmitrii Vavilin
Department of Plant Biology and Center for the Studies of Early Events in Photosynthesis, Arizona State University, Tempe, Arizona 85287, USA
Biochemistry 42:1731-46. 2003..Taken together, the data suggest that Chl b and pheophytin b participate in electron-transfer reactions in PS II reaction centers of Chl b-containing mutant of Synechocystis without significant impairment of PS II function... - The nature of the photosystem II reaction centre in the chlorophyll d-containing prokaryote, Acaryochloris marinaMin Chen
School of Biological Sciences, University of Sydney, NSW 2006, Australia
Photochem Photobiol Sci 4:1060-4. 2005..We conclude that PS II, in A. marina, utilizes Chl d and not Chl a as primary electron donor and that the primary electron acceptor is one of two molecules of pheophytin a... - Spectroscopic properties of the main-form and high-salt peridinin-chlorophyll a proteins from Amphidinium carteraeRobielyn P Ilagan
Department of Chemistry, 55 North Eagleville Road, University of Connecticut, Storrs, Connecticut 06269-3060, USA
Biochemistry 43:1478-87. 2004..The study provides insight into the molecular factors that control energy transfer in this class of light-harvesting pigment-protein complexes... - Femtosecond spectroscopy of the primary charge separation in reaction centers of Chloroflexus aurantiacus with selective excitation in the QY and Soret bandsYueyong Xin
Department of Biology, Washington University, St Louis, Missouri 63130, USA
J Phys Chem A 111:9367-73. 2007..aurantiacus RC that better explains the observed results... - Directing electron transfer within Photosystem I by breaking H-bonds in the cofactor branchesYajing Li
Department of Chemistry, University of Alabama, Tuscaloosa, AL 35487-0336, USA
Proc Natl Acad Sci U S A 103:2144-9. 2006..This finding suggests that in Photosystem I, unlike type II reaction centers, the relative efficiency of the two branches is extremely sensitive to the energetics of the embedded redox cofactors... - Photolysis and recombination of adenosylcobalamin bound to glutamate mutaseRoseanne J Sension
Department of Chemistry, University of Michigan, Ann Arbor, MI 48109 1055, USA
J Am Chem Soc 126:1598-9. 2004..08 +/- 0.10 ns-1, only 16% smaller than the rate constant measured in free solution, 1.39 +/- 0.06 ns-1, suggesting the protein does not greatly perturb the stability of the cobalt-carbon bond upon binding the coenzyme...