ライフサイエンスコーパス: reaction center

1 ecificity (the atomic environment around the reaction center).

2 antenna size, enhanced connectivity between reaction centers).

3 single C-H bond is exposed to the catalytic reaction center.

4 between an artificial antenna system and the reaction center.

5 a proposed charge transfer (CT) state in the reaction center.

6 hotochemical quenching in the red algal PSII reaction center.

7 anced yield of 27% in a QHE motivated by the reaction center.

8 ar to those of PioC, is unable to reduce the reaction center.

9 s as an organizational template for the PSII reaction center.

10 e D1 and CP43 intrinsic subunits of the PSII reaction center.

11 ant ferrous iron forms to the photosynthetic reaction center.

12 lso demonstrated a stabilizing effect of the reaction center.

13 st coupled cluster QM/MM calculations of the reaction center.

14 and D2 together build up the photosystem II reaction center.

15 sing a substituent at a remote site from the reaction center.

16 to those observed within the photosynthetic reaction center.

17 due to the catalytic power of the N-terminal reaction center.

18 ndent mechanism that involves the N-terminal reaction center.

19 und entities of the bacterial photosynthetic reaction center.

20 the newly integrated D1 protein in the PSII reaction center.

21 laser-induced charge separation in the PSII reaction center.

22 agement of DMATase-tRNA interaction near the reaction center.

23 5 dimer cation radical in the Rb sphaeroides reaction center.

24 ochemical information from the ligand to the reaction center.

25 ntly direct energy toward the photosynthetic reaction center.

26 sualization of the coherence dynamics in the reaction center.

27 er intrinsic proteins remaining bound to the reaction center.

28 cially the dissociation of cyt c(2) from the reaction center.

29 to those in the homologous purple bacterial reaction center.

30 ate is independent of the redox state of the reaction center.

31 se network of antenna complexes and into the reaction center.

32 anisms is a transmembrane protein called the reaction center.

33 harvest solar energy and transport it to the reaction center.

34 electron donors and acceptors in artificial reaction centers.

35 del light-harvesting systems integrated with reaction centers.

36 n crystals provide a high density of aligned reaction centers.

37 ntenna, but ultimately photoinactivated PSII reaction centers.

38 creases the transfer of excess energy to the reaction centers.

39 sunlight and providing it to photosynthetic reaction centers.

40 ng covalent bonding interactions between the reaction centers.

41 ent of that of the special pair in bacterial reaction centers.

42 te in Rhodobacter sphaeroides photosynthetic reaction centers.

43 f harmful chemical species by photosynthetic reaction centers.

44 r reduction potential when present in type I reaction centers.

45 one species can perform diverse functions in reaction centers.

46 ters of photoinduced processes in artificial reaction centers.

47 that are widely exploited by photosynthetic reaction centers.

48 s in the design of artificial photosynthetic reaction centers.

49 is senses the imbalance in the excitation of reaction centers.

50 antenna complexes from photosystem II (PSII) reaction centers.

51 shuttles a phosphoryl group between the two reaction centers.

52 c conditions, and had chlorosomes and type 1 reaction centers.

53 nt funneling of the excitation energy to the reaction centers.

54 trolling the activities and selectivities of reaction centers.

55 yll content but a lower percentage of active reaction centers.

56 y the membrane morphology and the closure of reaction centers.

57 harge separation unit akin to photosynthetic reaction centers.

58 and N-4 atoms as well as the 3-NH2 group as reaction centers.

59 ng in PSI a situation that occurs in type II reaction centers.

60 nment in natural and (15)N uniformly labeled reactions centers.

61 e zeaxanthin in the LHCI antenna and the PSI reaction center; (2) structural remodeling of the LHCI a

62 The reaction center 5'-guanosine appears to be part of a hel

63 th functional in energy transfer to the PSII reaction center, a homotrimer of CP26 and a heterotrimer

64 t the Cys(2) mutant enzyme or the N-terminal reaction center alone can reduce Se-containing substrate

65 icient LH1 complex with complexes containing reaction centers also demonstrated a stabilizing effect

66 the first time a detailed description of the reaction center and antenna system from mesophilic cyano

67 or the ET complex between the photosynthetic reaction center and cytochrome c(2).

68 utionary link between the cyanobacterial PSI reaction center and its green algal/higher plant counter

69 ing atomic properties of atoms in a putative reaction center and molecular properties as features, we

70 zyme reactions at three levels: bond change, reaction center and reaction structure similarity.

71 to elucidate the catalytically active phase, reaction center and the OER mechanism.

72 or the assembly of functional photosynthetic reaction centers and antenna complexes.

73 embrane-embedded super-complexes, containing reaction centers and connected antennae.

74 ential energy sinks able to compete with the reaction centers and drastically undermine light-harvest

75 phycobilisomes transfer excitation energy to reaction centers and how the energy balance of two photo

76 on of ferrous iron were studied in wild-type reaction centers and in mutants that have been modified

77 the concentration of charge-separating PSII reaction centers and more than half of these contained p

78 Reaction centers and surrounding local structures in sub

79 hat electron transfer between photosynthetic reaction centers and the associated electrochemical prot

80 wo beta-carotene molecules in photosystem II reaction centers and the two luteins in the major photos

81 green sulfur bacteria (containing the type I reaction center) and Clostridia (forming heat-resistant

82 vesting complexes 1 and 2, the photochemical reaction center, and the cytochrome bc(1) complex descri

83 c connectivity between photosystem II (PSII) reaction centers, and an increase in the relative LHCII

84 ation, closure/degradation of photosystem II reaction centers, and substantial accumulation of glucos

85 to determine how photosynthetic antennae and reaction centers are activated in the ground state to pe

86 ble radical pair formation when photovoltaic reaction centers are embedded throughout light-harvestin

87 Direct comparisons show that reaction centers are more stable in this copolymer/lipid

88 -type reaction centers, the highly oxidizing reaction centers are not stable in the light unless they

89 Reaction centers are pigment-protein complexes that driv

90 Photosynthetic reaction centers are sensitive to high light conditions,

91 In this paper, the Mn-binding reaction centers are shown to have a light-driven enzyma

92 vesicles embedding an oriented population of reaction centers, are capable of generating a photoinduc

93 ential turnover of the photosystem II (PSII) reaction center as a function of O(2) pressures, we show

94 pling of the phycobilisome (PBS) to the PSII reaction center as determined by observing the changes i

95 ilar effect on the reactivity of carbanionic reaction centers as alkoxycarbonyl substitution.

96 CC 6803 important for formation of the D1/D2 reaction center assembly complex.

97 Photosystem I (PSI) is a reaction center associated with oxygenic photosynthesis.

98 kinase/regulator interactions, and malleable reaction centers built when the two components meet emer

99 sm that decreases the energy arriving at the reaction centers by increasing thermal energy dissipatio

100 ecrease the amount of energy arriving at the reaction centers by increasing thermal energy dissipatio

101 e used to analyze the rehybridization of the reaction center C and the N-CH(3)/CD(3) 2 degrees KIEs t

102 We hypothesize that the N-terminal reaction center can reduce substrates (i) with good leav

103 ously, site-specific mutagenesis has yielded reaction centers capable of transmembrane charge separat

104 d in a 2.2-fold increase in the formation of reaction center charge-separated state upon intensity-li

105 M/MM) calculations of individual and coupled reaction center chromophores to describe reaction center

106 Its reaction center chromophores, where the charge transfer

107 ater-oxidizing complex (WOC) and half of the reaction center cofactors, and it is present as two isof

108 The light-harvesting-reaction center complex (LH1-RC) from the purple phototr

109 e peripheral light-harvesting antenna to the reaction center complex by taking advantage of quantum c

110 thods, a biomimetic bacterial photosynthetic reaction center complex has been constructed, and photoi

111 The core reaction center complex is composed of the D1, D2, CP43,

112 ing the formation of the heterodimeric D1/D2 reaction center complex, the site of primary photochemis

113 electronic energy by the pigments facing the reaction center complex.

114 ome b559, an essential component of the PSII reaction-center complex.

115 enter in this complex, which we call the "no reaction center" complex (NRC).

116 sting regulation is important for protecting reaction center complexes from overexcitation, generatio

117 d it to reconstitute Rhodobacter sphaeroides reaction center complexes, demonstrating that peptidiscs

118 n light harvesting complexes LH2 and LH1/RC (reaction center) complexes has been investigated in memb

119 II (oxygenic and nonoxygenic, respectively) reaction centers contain quinone cofactors that serve ve

120 nd photochemical properties of an artificial reaction center containing two porphyrin electron donor

121 g light absorption (effective cross-section, reaction center content) and utilization (photochemical

122 Photosynthetic reaction centers convert excitation energy from absorbed

123 Photosynthetic reaction centers convert light energy into chemical ener

124 Photosynthetic reaction centers convert sunlight into a transmembrane e

125 he P700 (+) formation was observed in a PS I reaction center core preparation from Nostoc punctiforme

126 complex comprised only two polypeptides: the reaction center core protein PscA and a 22-kDa carotenoi

127 entirely different mode of binding with the reaction center core than PsaC, its counterpart in Photo

128 uggesting that the functionality of the PSII reaction center could not be recovered in the absence of

129 study of primary electron transfer in single reaction center crystals from Rhodobacter sphaeroides.

130 es reactions lead to oxidative damage of the reaction center, D1 protein turnover, and inhibition of

131 A comparison of a reaction-center-deficient LH1 complex with complexes con

132 ng energetic coupling of the PBS to the PSII reaction center depends upon the formation of an active

133 ation in native photosystem I photosynthetic reaction centers does occur in the inverted region, at b

134 borne out in the present all-supramolecular "reaction center" donor-acceptor mimic.

135 meters that dictate the efficiency of dye-to-reaction center energy transfer and subsequent charge se

136 after light activation of the photosynthetic reaction center, especially the dissociation of cyt c(2)

137 Thus, the overall B800-->B850-->B890--> Reaction Center ET cascade is well described by simple t

138 led reaction center chromophores to describe reaction center excited states.

139 bacteria and viruses to photosystem-II psbA (reaction center) expression in our study sites.

140 e both as the site of polymerization and the reaction center for an annulation reaction that laterall

141 Successful artificial photosynthetic reaction centers for solar energy conversion have simila

142 I intron catalysis: the oxygen atoms at the reaction center form multidentate interactions that func

143 ochrome c oxidase, consists of a hydrophobic reaction center formed by three mitochondrially encoded

144 The Type I homodimeric photosynthetic reaction center found in anaerobic gram-positive bacteri

145 allization of a his-tagged membrane protein, Reaction Center from Rhodobacter sphaeroides, performed

146 In the photosynthetic reaction center from Rhodobacter sphaeroides, the primar

147 s near the primary electron donor (P) of the reaction center from the purple photosynthetic bacterium

148 We have previously demonstrated that reaction centers from anoxygenic photosynthetic bacteria

149 Photosynthetic reaction centers from Rhodobacter sphaeroides have ident

150 spectroscopy to three structurally-modified reaction centers from the purple bacterium Rhodobacter s

151 have been studied in Rhodobacter sphaeroides reaction centers from wild type and 14 mutants in which

152 pt abundance of two important photosynthetic reaction center genes, psbA (encoding the D1 protein of

153 tion process of the bacterial photosynthetic reaction center has been trapped in two D(LL)-based Rhod

154 enyl group, which directly conjugates with a reaction center having S(N)1 character in the ts.

155 also demonstrated in Rhodobacter sphaeroides reaction centers having inhibited ET, indicating that fl

156 The presence of 60% of these genes in both reaction center I (RC-I) and RC-II-type bacteria may be

157 and total power transferred to a biomimetic reaction center in an existing seven-helix double strand

158 ot only acts as direct electron donor to the reaction center in anoxygenic phototrophs but can also b

159 tuent from the cyclopropane is away from the reaction center in both pathways, and low regioselectivi

160 een the light-harvesting complex LH1 and the reaction center in purple bacteria photosynthesis.

161 facile reconstitution of the photosynthetic reaction center in the artificial lipid membrane, obtain

162 ies were found to be clear-cut, although the reaction center in these reactions is one covalent bond

163 results support the absence of a functional reaction center in this complex, which we call the "no r

164 Unlike the monomeric reaction centers in green and purple bacteria, PSI forms

165 em II (PS II) is unique among photosynthetic reaction centers in having secondary electron donors tha

166 ction course due to the change of one of the reaction centers in the 2-cyanothioacetamide (C-C-N buil

167 antenna and thus the photochemical yield at reaction centers in the functional thylakoid membrane.

168 molecular distance between two photochemical reaction centers in the molecule.

169 The subsequent energy transfer to the reaction center is commonly rationalized in terms of exc

170 One electron charge separation in the PSII reaction center is coupled to sequential oxidation react

171 moiety, the solvent distribution around the reaction center is nearly the same.

172 n complex (WOC) of the photosystem II (PSII) reaction center is termed photoactivation and culminates

173 n complex (WOC) of the photosystem II (PSII) reaction center is termed photoactivation.

174 The Photosystem II reaction center is vulnerable to photoinhibition.

175 onstrate that the amount of functional PS II reaction centers is compromised in the plants that exhib

176 y efficiency of primary electron transfer in reaction centers is essential for designing performance-

177 as an antenna conjugated to a photosynthetic reaction center isolated from Rhodobacter sphaeroides 2.

178 hat to account for steric hindrance near the reaction center, it was also necessary to include confor

179 lls and an iron-sulfur cluster; unlike other reaction centers, it lacks a bound quinone.

180 d a unique organization of arrays of dimeric reaction center-light harvesting I-PufX (RC-LH1-PufX) co

181 orption spectroscopy on membranes containing reaction center-light-harvesting 1-PufX (RC-LH1-PufX) co

182 lowest energy excitation globally within the reaction center, lower than any pigment-centered local e

183 In supramolecular reaction center models, the lifetime of the charge-separ

184 ectron transport chain (ETC), and hence PSII reaction centers, more oxidized.

185 of the Blastochloris viridis photosynthetic reaction center, observing an ultrafast global conformat

186 erved electroactivity is from FAD, the redox reaction center of GOx.

187 es" that discharge unwanted electrons in the reaction center of higher plants.

188 by a pseudo-C2 symmetry, are present in the reaction center of photosystem I (PSI).

189 d P700 similar to what has been found in the reaction center of PS II.

190 acid at position M210 in the photosynthetic reaction center of Rhodobacter sphaeroides results in th

191 rences in the photoresponse of the bacterial reaction center of Rhodobacter sphaeroides.

192 displaced to redox catalysts similar to the reaction center of the LHC.

193 litates proton delivery from the bulk to the reaction center of the protein.

194 made by electrically connecting, or wiring, reaction centers of bilirubin oxidase to carbon with an

195 special pair) at the heart of photosynthetic reaction centers of both plants and bacteria.

196 at harbors the iron-sulfur clusters from the reaction centers of Heliobacterium modesticaldum.

197 ical features of a HiPIP, and can reduce the reaction centers of membrane suspensions in a light-depe

198 s to survive and grow, light can also damage reaction centers of photosystem II (PSII) and reduce pho

199 Bacterial reaction centers offer a rare opportunity to compare the

200 Photosynthetic reaction centers operate in organisms ranging from bacte

201 n transfer from plastocyanin to the oxidized reaction center P700 (+).

202 a functional replacement exists to link the reaction center photochemistry to cyclic electron transf

203 esolution x-ray structure of the homodimeric reaction center-photosystem from the phototroph Heliobac

204 Exploitation of natural photovoltaic reaction center pigment proteins in biohybrid architectu

205 mic blue shift of a FR-chlorophyll among the reaction center pigments.

206 a PSII subcomplex that lacks 5 key PSII core reaction center polypeptides: D1, D2, PsbE, PsbF, and Ps

207 large extrinsic loop of Photosystem II CP43 reaction center protein (CP43) in the PSII-OEC extrinsic

208 large extrinsic loop of Photosystem II CP47 reaction center protein (CP47) from the putative oxygen-

209 and replacing the photoinactivated D1/32-kD reaction center protein (the chloroplast-encoded psbA ge

210 in degradation of the photosystem II (PSII) reaction center protein D1 upon repair of photodamaged P

211 of FtsH protease in vivo, the photosystem II reaction center protein D1, is not efficiently removed b

212 n accelerates turnover and synthesis of PSII reaction center protein D1.

213 The D1 reaction center protein is the main target for photodama

214 The D1 reaction center protein of photosystem II (PSII) is subj

215 Synthesis of the D1 reaction center protein of Photosystem II is dynamically

216 occupancy on the psbA mRNA (encoding the D1 reaction center protein of PSII) increased and that on t

217 d in the vicinity of LHCII and the PSII CP43 reaction center protein.

218 We show that the photosystem II reaction center proteins D1 and D2, which are auxiliary

219 ts revealed impaired synthesis of the PsaA/B reaction center proteins of PSI, which was accompanied b

220 e preserves characteristics of the ancestral reaction center, providing insight into the evolution of

221 e electronic structure of the photosystem II reaction center (PSII RC) in relation to the light-induc

222 c (vibronic) coherence in the Photosystem II Reaction Center (PSII RC) indicates that photosynthetic

223 Here, we demonstrate that reaction centers purified using a styrene maleic acid co

224 ssions, ETR, and the oxidation state of PSII reaction centers (q(L) ) increased with leaf temperature

225 eta-carotene endoperoxide points at the PSII reaction centers, rather than the PSII chlorophyll anten

226 orrespond to a light-harvesting-complex 2 to reaction center ratio of 3:1.

227 LH1 directly surrounds the reaction center (RC) and, together with PufX, forms a di

228 ting 2 (LH2) complex relative to that of LH1-reaction center (RC) core particles.

229 charge-separated state generated within its reaction center (RC) drives water oxidation.

230 sition and electron-transfer kinetics of the reaction center (RC) from a magnesium chelatase (bchD) m

231 Reaction Center (RC) from Blastochloris viridis was used

232 nsfer proteins cytochrome c(2) (cyt) and the reaction center (RC) from Rhodobacter sphaeroides was st

233 ght and to transmit excitation energy to the reaction center (RC) in photosynthetic organisms.

234 e light-harvesting B808-866 complex, and the reaction center (RC) in the thermophilic green phototrop

235 e secondary quinone (QB) binding site of the reaction center (RC) of the photosynthetic bacterium Rho

236 action between cytochrome c(2) (cyt) and the reaction center (RC) was studied to determine the mechan

237 In the purple bacterial reaction center (RC), a highly efficient ultrafast charg

238 omplexes: the light-harvesting (LH) antenna, reaction center (RC), and core complex (RC-LH).

239 ding light harvesting complexes LH1 and LH2, reaction center (RC), and cytochrome bc(1).

240 In the native purple bacterial reaction center (RC), light-driven charge separation uti

241 igments and transfer from the antenna to the reaction center (RC), where charge separation occurs.

242 ripheral chlorosome antenna complex with the reaction center (RC), which is embedded in the cytoplasm

243 protein-bound bacteriochlorophylls, and the reaction center (RC), which uses the light-excitation en

244 ting LH2 complexes and monomeric and dimeric reaction center (RC)-light-harvesting 1 (LH1)-PufX "core

245 rsible charge separation taking place in the reaction center (RC).

246 orophototroph that has a type-I, homodimeric reaction center (RC).

247 hytin (H(B)) in the bacterial photosynthetic reaction center (RC).

248 ormation in single crystals of the bacterial reaction center (RC).

249 or local conformational changes in bacterial reaction centers (RC) associated with the electron-trans

250 em I (PSI) protein complex (not the isolated reaction center, RCI), on two different "director SAMs"

251 2 ns in intact thylakoid membranes when PSII reaction centers (RCIIs) are closed (Fm).

252 rred at normal rates, but heterodimeric PSII reaction centers (RCs) and higher order PSII assemblies

253 Reaction centers (RCs) are integral membrane proteins th

254 in frozen and quinone-blocked photosynthetic reaction centers (RCs) as modification of magic-angle sp

255 or-specific photochemistry in photosynthetic reaction centers (RCs) from Rhodobacter sphaeroides was

256 -induced electron transfer in photosynthetic reaction centers (RCs) of the purple bacterium Rhodobact

257 light-harvesting complexes, LH1 and LH2, and reaction centers (RCs).

258 The structures of reaction centers reveal two symmetry-related branches of

259 utation of three amino acid in the catalytic reaction center significantly inhibited both the endonuc

260 photosynthetic pigments, including those of reaction center special pairs and possibly quantum coher

261 M sites through formation of O-bridged Fe-M reaction centers, stabilize OER intermediates that are u

262 ry of a homodimer is broken in heterodimeric reaction-center structures, such as those reported previ

263 -color photon echo experiment on a bacterial reaction center that enabled direct visualization of the

264 iation by transferring the excitation to the reaction center that stores energy from the photon in ch

265 m could, in principle, reflect a fraction of reaction centers that contain PsaC bound in the 180 degr

266 diminishes the likelihood of photodamage to reaction centers that have either lost an intact Mn clus

267 substantially decrease the fraction of PSII reaction centers that undergo the S(3) to S(0) transitio

268 Unlike wild-type reaction centers, the highly oxidizing reaction centers

269 ggests that in Photosystem I, unlike type II reaction centers, the relative efficiency of the two bra

270 The enzyme contains two remotely located reaction centers: the nucleotide partial reaction takes

271 electron donor and acceptor moieties in the reaction center to control the yield and kinetics of the

272 The use of photochemical reaction centers to convert light energy into chemical e

273 er and low enough for quinone diffusion from reaction centers to cytochrome bc(1) complexes.

274 echanisms to decrease the energy arriving at reaction centers to protect themselves from high irradia

275 proton transfer in bacterial photosynthetic reaction centers to those calculated using our coarse-gr

276 due, M120, located 20 angstrom away from the reaction center, to discriminate in favor of substrate.

277 es the energy arriving at the photosynthetic reaction centers under high-light conditions.

278 re functionally asymmetric; purple bacterial reaction centers use the A pathway exclusively.

279 es the electronic structure at the catalytic reaction center via geometrical factors.

280 s transferred from photosynthetic antenna to reaction centers via ultrafast energy transfer.

281 verage number of DNA three-arm junctions per reaction center was tuned from 0.75 to 2.35.

282 ld type the ratio of PS IIalpha to PS IIbeta reaction centers was approximately 1.2 while in the muta

283 n) of a series of triterpenoids with Michael reaction centers were closely correlated with the potenc

284 through a series of antenna complexes to the reaction center where charge separation occurs.

285 nsfer energy from sunlight to photosynthetic reaction centers where charge separation drives cellular

286 Most of the energy is transferred to reaction centers where it is used for charge separation.

287 enna complexes, and energy is transferred to reaction centers where photochemical reactions take plac

288 ptures solar energy and transports it to the reaction center, where charge separation occurs.

289 diffusion length of 50 nm until it reaches a reaction center, where charge separation serves as an en

290 d by the dye molecules is transferred to the reaction center, where charge separation takes place.

291 sfer of the nascent excitation energy to the reaction centers, where long-term storage as chemical en

292 Genuine PshB was dissociated from the reaction center with 1 M NaCl and purified using an affi

293 us moves energy from absorbed photons to the reaction center with remarkable quantum efficiency.

294 ectron photochemistry occurring at the PS II reaction center with the four-electron water-oxidation c

295 nsfer from Q(A)(-) to Q(B) in Photosystem II reaction centers with an occupied Q(B) site was slowed b

296 succeeded in the discovery of several mutant reaction centers with increased efficiency of the B path

297 he phycobilisome supports directional EET to reaction centers with minimal losses due to thermal diss

298 al design principles for engineering of PSII reaction centers with optimal photochemical efficiencies

299 d Q(B) sites, using samples of (15)N-labeled reaction centers, with the native high spin Fe(2+) excha

300 enzymatic ability of this type of Mn-binding reaction centers would have provided primitive phototrop