ライフサイエンスコーパス: bacteriochlorophyll

1 lpha-Met1 which forms the ligand of the B800 bacteriochlorophyll.

2 l pyrophosphate in vitro, thereby generating bacteriochlorophyll.

3 l generated when light energy is absorbed by bacteriochlorophyll.

4 - and beta-apoproteins and their coordinated bacteriochlorophylls.

5 d can perform its role as an energy donor to bacteriochlorophylls.

6 lide during biosynthesis of chlorophylls and bacteriochlorophylls.

7 he optical modulation of naturally occurring bacteriochlorophylls.

8 cycles related to photosynthetic function of bacteriochlorophylls.

9 ral region and close similarity with natural bacteriochlorophylls.

10 , a reaction critical to the biosynthesis of bacteriochlorophylls.

11 mmetry where each monomer accommodates eight Bacteriochlorophyll a (BChl a) molecules.

12 Allomerization of bacteriochlorophyll a (Bchl a) was studied under various

13 Using the bacteriochlorophyll a (Bchl) cofactors as intrinsic prob

14 residues before a native His site that binds bacteriochlorophyll a (BChl-a) and, like the native LH p

15 anoxygenic, phototrophic bacteria containing bacteriochlorophyll a (Bchla) require oxygen for both gr

16 Compared to bacteriochlorophyll a and bacteriopheophytin, the relate

17 alpha-helices enclose the pigment molecules bacteriochlorophyll a and carotenoid.

18 In all of the mutants investigated, the B850 bacteriochlorophyll a binding site remained intact, cons

19 A bacteriochlorophyll a biosynthesis mutant of the purple

20 Bacteriochlorophyll a biosynthesis requires formation of

21 Bacteriochlorophyll a biosynthesis requires the stereo-

22 lorophyllide a by geranylgeraniol-PPi during bacteriochlorophyll a biosynthesis.

23 local protein environment of the constituent bacteriochlorophyll a chromophores and reflect electroni

24 sis of variable fluorescence arising from LH-bacteriochlorophyll a components.

25 However, the bacteriochlorophyll a contents of mutants lacking colore

26 Eight bacteriochlorophyll a derivatives were synthesized with

27 trong excitonic coupling between their bound bacteriochlorophyll a molecules in combination with the

28 in bacterial reaction centers is a dimer of bacteriochlorophyll a molecules, labeled L or M based on

29 LHs bind bacteriochlorophyll a molecules, which confer on them a

30 shown to support nearly wild-type levels of bacteriochlorophyll a synthesis.

31 The possible functions of the Zn-bacteriochlorophyll a(P)' molecules and the carotenoid-b

32 hyll a(P), 6.4 chlorophyll a(PD), and 1.6 Zn-bacteriochlorophyll a(P)' molecules per P840 (12.8:8.0:2

33 revealed that the RC complex contained 10.3 bacteriochlorophyll a(P), 6.4 chlorophyll a(PD), and 1.6

34 oxo-bacteriopyropheophorbide a (derived from bacteriochlorophyll a) as a starting material, which on

35 nds at 672 and 812 nm from chlorophyll a and bacteriochlorophyll a, respectively.

36 The vertical distribution of bacteriochlorophyll a, the numbers of infrared fluoresce

37 fied by the bacterial photosynthetic pigment bacteriochlorophyll a, yet often are labile toward dehyd

38 nal new branching point for the synthesis of bacteriochlorophyll a.

39 lorosomes, the Fenna-Matthews-Olson protein, bacteriochlorophylls a and c as principal pigments, and

40 sin to acquire light, whereas the other uses bacteriochlorophyll-a and the sulfur-oxidizing sox clust

41 y delocalized exciton states of the circular bacteriochlorophyll aggregate.

42 pyrrole, cobalamin controls the synthesis of bacteriochlorophyll, an essential component of the photo

43 rge separation takes place between a pair of bacteriochlorophylls: an accessory bacteriochlorophyll (

44 Herein, a general route to stable, synthetic bacteriochlorophyll analogues is described.

45 fQ deletion strain synthesises low levels of bacteriochlorophyll and accumulates the biosynthetic pre

46 AGs, demonstrating that organisms containing bacteriochlorophyll and assimilative nitrate reductase c

47 formance liquid chromatography separation of bacteriochlorophyll and bacteriopheophytin pigments extr

48 observation of spin polarized 15N nuclei in bacteriochlorophyll and bacteriopheophytin was previousl

49 are replaced by features typical of unbound bacteriochlorophyll and bacteriopheophytin.

50 resembling those of the aromatic carbons in bacteriochlorophyll and bacteriopheophytin.

51 an oxygen- and light-dependent repressor of bacteriochlorophyll and carotenoid biosynthesis genes an

52 pression of light harvesting II genes and of bacteriochlorophyll and carotenoid biosynthesis genes in

53 emical evidence that RegA directly regulates bacteriochlorophyll and carotenoid biosynthesis in Rhodo

54 e identified, 20 of which encode enzymes for bacteriochlorophyll and carotenoid biosynthesis, reactio

55 also control expression of genes involved in bacteriochlorophyll and carotenoid synthesis, and synthe

56 The tetrapyrroles haem, bacteriochlorophyll and cobalamin (B12 ) exhibit a compl

57 lar to wild type but which possesses reduced bacteriochlorophyll and photosynthetic complexes in semi

58 al requirements for the binding of monomeric bacteriochlorophyll and to examine the basis of the red

59 e dimer and two small subunits coordinate 54 bacteriochlorophylls and 2 carotenoids that capture and

60 eme sensor to coordinate the amount of heme, bacteriochlorophyll, and photosystem apoprotein synthesi

61 sorbs sunlight by means of the protein-bound bacteriochlorophylls, and the reaction center (RC), whic

62 te P(+)B(L)(-) is characterized by a 1017 nm bacteriochlorophyll anion absorption band and decays by

63 y well-defined protein the distances between bacteriochlorophylls are comparable to those of other li

64 es in the disorder of the environment of the bacteriochlorophylls, are discussed.

65 Total depth-integrated bacteriochlorophyll at one station exceeded total chloro

66 L181 donates a sixth ligand to the monomeric bacteriochlorophyll B(B).

67 ly via recombination through the neighboring bacteriochlorophyll (B(A)) soon after formation.

68 a pair of bacteriochlorophylls: an accessory bacteriochlorophyll (B) and bacteriopheophytin (H).

69 primary electron donor (P*) to the adjacent bacteriochlorophyll (B) in photosynthetic bacterial reac

70 ted resonance Raman spectra of the accessory bacteriochlorophylls (B), the bacteriopheophytins (H), a

71 quence of strain HIMB55, including genes for bacteriochlorophyll-based phototrophy.

72 Gly(M201) --> Asp mutations near the L-side bacteriochlorophyll (BChl(L)) raise the free energy of P

73 to those of RCs in which BPhL is replaced by bacteriochlorophyll (BChl) (beta-type RCs) or by pheophy

74 s RC, the special pair (P) and accessory (B) bacteriochlorophyll (BChl) -binding sites contain Zn-BCh

75 The bacteriochlorophyll (BChl) a protein from Chlorobium tep

76 ng alcohol at the C-17 propionate residue of bacteriochlorophyll (BChl) a, phytol, with geranylgerani

77 rial photosynthetic reaction center contains bacteriochlorophyll (Bchl) and bacteriopheophytin (Bph)

78 In reconstitution assays with bacteriochlorophyll (Bchl) and the LH1 alpha- and beta-p

79 lfur bacterium Chlorobium tepidum consist of bacteriochlorophyll (BChl) c aggregates that are surroun

80 rial phylum Acidobacteria, which synthesizes bacteriochlorophyll (BChl) c and chlorosomes like member

81 The bacteriochlorophyll (Bchl) c content and organization wa

82 Bacteriochlorophyll (BChl) c is the major photosynthetic

83 The gene encoding bacteriochlorophyll (BChl) c synthase was identified by

84 acteristically contain very large numbers of bacteriochlorophyll (BChl) c, d, or e molecules.

85 acteria are chlorophotorophs that synthesize bacteriochlorophyll (BChl) c, d, or e, which assemble in

86 normally donates the coordinating ligand to bacteriochlorophyll (Bchl) have provided the experimenta

87 s ambiguity, we studied the decay of excited bacteriochlorophyll (Bchl) in the membrane-bound core an

88 e bacteriopheophytin (BPhL) is replaced by a bacteriochlorophyll (BChl) molecule, designated by beta

89 sphaeroides, the hydrogen bonds between the bacteriochlorophyll (Bchl) molecules and their proteic b

90 ates hundreds of thousands of self-assembled bacteriochlorophyll (BChl) molecules.

91 ome is a natural self-assembled aggregate of bacteriochlorophyll (BChl) molecules.

92 Bacteriochlorophyll (BChl) structural requirements for f

93 ve been investigated in mutants containing a bacteriochlorophyll (BChl)--bacteriopheophytin (BPhe) di

94 Park revealed the existence of a distinctive bacteriochlorophyll (BChl)-synthesizing, phototrophic ba

95 their behavior in reconstitution assays with bacteriochlorophyll (Bchl).

96 nyl-Chl a and b; and 8(1)-hydroxy-Chl a) and bacteriochlorophylls (BChl a, b, c, d, e, and g) are cur

97 Chlorosomes comprise thousands of bacteriochlorophylls (BChl c, d, or e) in a closely pack

98 he same as the one operating for chlorosomal bacteriochlorophylls (BChl's).

99 ely, comprising alpha and beta polypeptides, bacteriochlorophylls (Bchl), and carotenoids.

100 differ depending upon whether the monomeric bacteriochlorophylls, BChl(A), BChl(B), or the special p

101 Bacteriochlorophylls (BChls) c and d, two of the major l

102 Bacteriochlorophylls (BChls) c, d, and e are the major c

103 no acid polypeptide that binds and assembles bacteriochlorophylls (BChls) in micelles of octyl beta-g

104 unded by 14 LH1 alphabeta subunits, with two bacteriochlorophylls (Bchls) sandwiched between each alp

105 eported RCs in which BPhL is replaced with a bacteriochlorophyll (beta-type RCs) or a pheophytin.

106 the protein by histidine is not required for bacteriochlorophyll binding or for efficient electron tr

107 first examples of AP maquettes with heme and bacteriochlorophyll binding sites located within the LP

108 induced in photosynthesis (puf and puc) and bacteriochlorophyll biosynthesis (bchC).

109 consensus of our phylogenetic analysis, that bacteriochlorophyll biosynthesis evolved before chloroph

110 ectly responsible for anaerobic induction of bacteriochlorophyll biosynthesis genes bchE, bchD, bchJ,

111 fied FixK interacted with the promoters of a bacteriochlorophyll biosynthesis operon, a bacteriophyto

112 e of sequence similarity with carotenoid and bacteriochlorophyll biosynthesis promoters.

113 sion of three photosynthesis promoters, bch (bacteriochlorophyll biosynthesis), puc (light-harvesting

114 lved in the terminal esterification stage of bacteriochlorophyll biosynthesis, a previously uncharact

115 ated that FixK positively regulates haem and bacteriochlorophyll biosynthesis, cbb3 oxidase and NADH

116 M and part of bchH; bchHLM encode enzymes of bacteriochlorophyll biosynthesis.

117 ) into protochlorophylide, a reaction of the bacteriochlorophyll biosynthetic pathway catalyzed by th

118 rtain tetrapyrrole intermediates of the heme/bacteriochlorophyll biosynthetic pathways in R. sphaeroi

119 nto protoporphyrin IX in the chlorophyll and bacteriochlorophyll biosynthetic pathways.

120 enoid complex, proposed to regulate the haem/bacteriochlorophyll branchpoint by directing porphyrin f

121 nted, as well as Stark hole-burning data for bacteriochlorophyll c (BChl c) monomers in a poly(vinyl

122 whole cells was dominated by the chlorosome bacteriochlorophyll c (BChl c) peak at 759 nm, with fluo

123 Previous work showed that bacteriochlorophyll c (BChl c) was the major pigment in

124 bacterium Chlorobium tepidum comprise mostly bacteriochlorophyll c (BChl c), small amounts of BChl a,

125 ype, and the Q(y) absorbance maximum for the bacteriochlorophyll c aggregates in these chlorosomes wa

126 lorosomes, and the Q(y) absorption for their bacteriochlorophyll c aggregates was redshifted.

127 embly and supramolecular organization of the bacteriochlorophyll c aggregates within the chlorosome.

128 ified in a constant proportion together with bacteriochlorophyll c, and none of these 10 proteins was

129 ynthetic pathway of the chlorosome pigments, bacteriochlorophylls c, d, and e, is not well understood

130 Previous studies demonstrated that bacteriochlorophyll, carotenoid, and light harvesting ge

131 hat is responsible for aerobic repression of bacteriochlorophyll, carotenoid, and light harvesting-II

132 tes this process by repressing expression of bacteriochlorophyll, carotenoid, and light-harvesting ge

133 genes involved in the biosynthesis of haem, bacteriochlorophyll, carotenoids as well as structural p

134 mental evidence that interaction between the bacteriochlorophyll chromophores and the protein environ

135 We used noncovalently bound arrays of bacteriochlorophyll chromophores within native and genet

136 ronic spectroscopy investigations of the FMO bacteriochlorophyll complex, and obtain direct evidence

137 r coupling in the Fenna-Matthews-Olson (FMO) bacteriochlorophyll complex, which is found in green sul

138 the excited-state wavefunctions of the whole bacteriochlorophyll complex.

139 Bacteriochlorophylls contain a bacteriochlorin macrocycl

140 nder ambient conditions, showing that the 27 bacteriochlorophylls coordinated by LH2 act as a non-cla

141 esized that taurine-driven E-ring opening of bacteriochlorophyll derivatives and net-charge variation

142 longwave reflecting tapetum and, uniquely, a bacteriochlorophyll-derived photosensitizer.

143 Following direct excitation of the bacteriochlorophyll dimer (P) to its lowest excited sing

144 r sphaeroides, containing a highly oxidizing bacteriochlorophyll dimer and a tyrosine residue substit

145 signed as arising primarily from an oxidized bacteriochlorophyll dimer at low pH values and from a ty

146 s observed for the reduction of the oxidized bacteriochlorophyll dimer by the bound manganese upon ex

147 between the primary quinone acceptor and the bacteriochlorophyll dimer decreased in the M199 Asn to A

148 early electron transfer steps, including the bacteriochlorophyll dimer donor P860 and probably the ba

149 Changing the oxidation states of the bacteriochlorophyll dimer electron donor (P) and primary

150 introduction of ionizable residues near the bacteriochlorophyll dimer in reaction centers from Rhodo

151 ecombination from the primary quinone to the bacteriochlorophyll dimer of the reaction center from th

152 o alter the electrostatic environment of the bacteriochlorophyll dimer that serves as the photochemic

153 Electron transfer from the bacteriochlorophyll dimer to the bacteriopheophytin acce

154 The electronic structure of the bacteriochlorophyll dimer was probed by introducing smal

155 cal and EPR spectra showed that the oxidized bacteriochlorophyll dimer was reduced by Tyr L167 in the

156 1, M160, M197, and M210, that give rise to a bacteriochlorophyll dimer with a midpoint potential of a

157 te (where D is the primary electron donor (a bacteriochlorophyll dimer), and QA and QB are the primar

158 reduces the photo-oxidized RC donor (D+), a bacteriochlorophyll dimer, in the co-crystals in approxi

159 ptical spectroscopy showed that the oxidized bacteriochlorophyll dimer, P+, could oxidize iron but on

160 on from exogenous manganese (II) ions to the bacteriochlorophyll dimer, P, of bacterial reaction cent

161 hylls, BChl(A), BChl(B), or the special pair bacteriochlorophyll dimer, P, was chosen for excitation.

162 sphaeroides has been modified such that the bacteriochlorophyll dimer, when it becomes oxidized afte

163 om the mutants showed a lack of the oxidized bacteriochlorophyll dimer, while the reduced primary qui

164 alter the electrostatic environment of P, a bacteriochlorophyll dimer, without greatly affecting its

165 g a tyrosine residue near a highly oxidizing bacteriochlorophyll dimer.

166 the RC, with the heme edge located above the bacteriochlorophyll dimer.

167 d approximately 10 A from a highly oxidizing bacteriochlorophyll dimer.

168 iously unreported geranyl ester of 4-i-butyl bacteriochlorophyll-e.

169 for by a series of aromatic carotenoids and bacteriochlorophylls-e, including a previously unreporte

170 explain the differences in the carotenoid to bacteriochlorophyll energy transfer efficiency after S(2

171 In Rps. acidophila the carotenoid S(1) to bacteriochlorophyll energy transfer is found to be quite

172 Similarly, carotenoid to bacteriochlorophyll energy transfer was largely unaffect

173 cturally modified photosystem assembled with bacteriochlorophyll esterified with geranylgeraniol, rat

174 radicals which then are capable of quenching bacteriochlorophyll excited states through electron tran

175 xing of the bacteriopheophytin and accessory bacteriochlorophyll excited states.

176 d dimers reminiscent of the special pairs of bacteriochlorophylls found in some photosynthetic bacter

177 examine the basis of the red shift seen for bacteriochlorophyll in photosynthetic complexes, in addi

178 the ligand to the central Mg in an accessory bacteriochlorophyll in reaction centers of purple bacter

179 forms part of the binding site for the B800 bacteriochlorophyll in the LH2 complex of Rhodobactersph

180 lineate physicochemical features relevant to bacteriochlorophylls in photosynthesis but have been lit

181 er 9 resembles the structural arrangement of bacteriochlorophylls in reaction center (RC), we investi

182 nd replaces histidine as the axial ligand to bacteriochlorophylls in the cavity mutants.

183 s49 and Cys353) situated near two low-energy bacteriochlorophylls in the FMO protein from Chlorobacul

184 dine serves as the axial ligand to the Mg of bacteriochlorophylls in the photosynthetic reaction cent

185 His residue that binds one of the accessory bacteriochlorophylls in the purple bacterial reaction ce

186 switching of tetrapyrrole metabolism toward bacteriochlorophyll is coordinated with the production o

187 the primary donor to the M-side intermediate bacteriochlorophyll is quite small because of destructiv

188 rmal special-pair comprised of Mg-containing bacteriochlorophylls is formed, as judged by many differ

189 rochelatase activity and increasing cellular bacteriochlorophyll levels.

190 The bacteriochlorins exhibit characteristic bacteriochlorophyll-like absorption spectra, including a

191 is ratio exists for different regions of the bacteriochlorophyll macrocycles.

192 More than 95% of the pigments in the bacteriochlorophyll-maximum are accounted for by a serie

193 rporate IPP into the ultimate carotenoid and bacteriochlorophyll metabolites in R. capsulatus.

194 is shown that, whereas the properties of the bacteriochlorophyll model can be explained on the basis

195 The photobleaching of one bacteriochlorophyll molecule from the 18-member assembly

196 obably P+BChlL- as well (BChlL is the L-side bacteriochlorophyll molecule).

197 ically modified to contain a lysine near the bacteriochlorophyll molecule, BChl(M), on the nonphotoac

198 B850 bacteriochlorophyll molecules are arranged in a ring of

199 ortion of the protein-bound 850 nm-absorbing bacteriochlorophyll molecules, or break of the hydrogen

200 light-harvesting complex, which contains 27 bacteriochlorophyll molecules.

201 The glycolipid is 3.5 A from the active bacteriochlorophyll monomer and shields this cofactor fr

202 ter exposed surface evident for the inactive bacteriochlorophyll monomer.

203 ion of the extremely hydrophobic 13(2)-OH-Ni-bacteriochlorophyll (Ni-BChl) to the lipophilic domain o

204 the imidazole group of His to the Mg atom of bacteriochlorophyll of >4.5 kcal/mol per BChl.

205 The bacteriochlorophyll of the purple photosynthetic bacteri

206 geoporphyrins, including three derived from bacteriochlorophylls of the d series and thus indicative

207 The histidine axial ligands to each and both bacteriochlorophylls of the special-pair primary electro

208 e, we couple the nanowire to specific sites (bacteriochlorophyll) of the Fenna-Matthews-Olson (FMO) p

209 is which provides the coordinating ligand to bacteriochlorophyll) of the former bacterium compared to

210 reductase (BchP); CT1232 is not involved in bacteriochlorophyll or chlorophyll biosynthesis.

211 Tetrapyrroles such as chlorophyll, heme, and bacteriochlorophyll play fundamental roles in the energy

212 ading frames that encode enzymes involved in bacteriochlorophyll/porphyrin biosynthesis, carotenoid b

213 eophorbide, the metal-free derivative of the bacteriochlorophyll precursor bacteriochlorophyllide, su

214 anchpoint by directing porphyrin flux toward bacteriochlorophyll production under oxygen-limiting con

215 osynthetic bacteria consists of a network of bacteriochlorophyll-protein complexes that absorb solar

216 troducing small systematic variations in the bacteriochlorophyll-protein interactions by a series of

217 the product of this gene was geranylgeranyl-bacteriochlorophyll reductase.

218 In contrast, the loss of 800 nm-absorbing bacteriochlorophyll reflects pressure-induced alteration

219 exes, representing a total of 3,879 or 4,464 bacteriochlorophylls, respectively.

220 is deficient in a hydrogen bond donor to the bacteriochlorophyll, showed an identical structure to th

221 spectral region to cover both carotenoid and bacteriochlorophyll signals.

222 or the membrane organization with two of the bacteriochlorophyll structures in the membrane and trans

223 In this model these two bacteriochlorophyll structures serve a similar role to t

224 differences are observed for the individual bacteriochlorophyll structures.

225 [(14)C]aminolevulinate was incorporated into bacteriochlorophyll, suggesting that the majority of the

226 We show that PufQ governs the haem/bacteriochlorophyll switch; pufQ is found within the oxy

227 rane invagination; LhaA associates with RCs, bacteriochlorophyll synthase (BchG), the protein translo

228 under conditions that give rise to elevated bacteriochlorophyll synthesis.

229 addition to the structural polypeptides and bacteriochlorophyll, the two major antenna complexes, B8

230 od-like shape, and that the self-assembly of bacteriochlorophylls, the major component of the chloros

231 s are performed on models of chlorophyll and bacteriochlorophyll to examine the effect of Mg ligation

232 Binding of bacteriochlorophyll to these PufX core segments is impli

233 was cultivated in the dark, biosynthesis of bacteriochlorophyll was increased, possibly to prepare f

234 We investigated whether the bacteriochlorophyll was produced by endosymbiotic bacter

235 n and involves the large-scale production of bacteriochlorophyll, which shares a biosynthetic pathway

236 two types of pigments: (a) chlorophylls and bacteriochlorophylls, which function in both light harve

237 opene transfers absorbed light energy to the bacteriochlorophylls with an efficiency of 54%, which co

238 view that electrostatic interactions of the bacteriochlorophylls with ionized residues of the protei

239 ra typical of bacteriopheophytins (free base bacteriochlorophylls), with a strong near-infrared absor

240 over the two moieties of the special pair of bacteriochlorophylls, with only slight excess in the L b