Literature DB >> 9083687

Spectroscopy and structure of bacteriochlorophyll dimers. I. Structural consequences of nonconservative circular dichroism spectra.

M H Koolhaas1, G van der Zwan, F van Mourik, R van Grondelle.   

Abstract

The origin of the nonconservative nature of the circular dichroism (CD) spectrum of bacteriochlorophyll dimers is investigated. It is shown that coupling between the Qy and Qx transitions can, under rather restricting circumstances, lead to an asymmetrical CD spectrum: only for a limited set of relative orientations of the monomers within the dimer is the spectrum found to be asymmetrical. The relation between intensity and asymmetry of the CD spectrum is elucidated. The results are applied to the B820 subunit of the LH1 antenna system and subsequently to the antenna system LH1 itself. Differences in the geometry of the BChls in LH1 versus the LH2 structure are discussed.

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Year:  1997        PMID： 9083687      PMCID： PMC1184377          DOI： 10.1016/S0006-3495(97)78829-5

Source DB:  PubMed          Journal:  Biophys J        ISSN： 0006-3495            Impact factor:   4.033


  9 in total

1.  Spectroscopic characterization of the light-harvesting complex of Rhodospirillum rubrum and its structural subunit.

Authors:  M C Chang; P M Callahan; P S Parkes-Loach; T M Cotton; P A Loach
Journal:  Biochemistry       Date:  1990-01-16       Impact factor: 3.162

2.  Fluorescence polarization and low-temperature absorption spectroscopy of a subunit form of light-harvesting complex I from purple photosynthetic bacteria.

Authors:  R W Visschers; M C Chang; F van Mourik; P S Parkes-Loach; B A Heller; P A Loach; R van Grondelle
Journal:  Biochemistry       Date:  1991-06-11       Impact factor: 3.162

3.  Spectral broadening of interacting pigments: polarized absorption by photosynthetic proteins.

Authors:  O J Somsen; R van Grondelle; H van Amerongen
Journal:  Biophys J       Date:  1996-10       Impact factor: 4.033

4.  Reconstitution of the B873 light-harvesting complex of Rhodospirillum rubrum from the separately isolated alpha- and beta-polypeptides and bacteriochlorophyll a.

Authors:  P S Parkes-Loach; J R Sprinkle; P A Loach
Journal:  Biochemistry       Date:  1988-04-19       Impact factor: 3.162

5.  Direct observation of sub-picosecond equilibration of excitation energy in the light-harvesting antenna of Rhodospirillum rubrum.

Authors:  H M Visser; O J Somsen; F van Mourik; S Lin; I H van Stokkum; R van Grondelle
Journal:  Biophys J       Date:  1995-09       Impact factor: 4.033

6.  Distribution and self-organization of photosynthetic pigments in micelles: implication for the assembly of light-harvesting complexes and reaction centers in the photosynthetic membrane.

Authors:  A Scherz; V Rosenbach-Belkin; J R Fisher
Journal:  Proc Natl Acad Sci U S A       Date:  1990-07       Impact factor: 11.205

7.  Blue shifts in bacteriochlorophyll absorbance correlate with changed hydrogen bonding patterns in light-harvesting 2 mutants of Rhodobacter sphaeroides with alterations at alpha-Tyr-44 and alpha-Tyr-45.

Authors:  G J Fowler; G D Sockalingum; B Robert; C N Hunter
Journal:  Biochem J       Date:  1994-05-01       Impact factor: 3.857

8.  Genetically modified photosynthetic antenna complexes with blueshifted absorbance bands.

Authors:  G J Fowler; R W Visschers; G G Grief; R van Grondelle; C N Hunter
Journal:  Nature       Date:  1992-02-27       Impact factor: 49.962

9.  The 8.5 A projection map of the light-harvesting complex I from Rhodospirillum rubrum reveals a ring composed of 16 subunits.

Authors:  S Karrasch; P A Bullough; R Ghosh
Journal:  EMBO J       Date:  1995-02-15       Impact factor: 11.598
  9 in total
  9 in total

1.  Absorption and CD spectroscopy and modeling of various LH2 complexes from purple bacteria.

Authors:  Sofia Georgakopoulou; Raoul N Frese; Evelyn Johnson; Corline Koolhaas; Richard J Cogdell; Rienk van Grondelle; Gert van der Zwan
Journal:  Biophys J       Date:  2002-04       Impact factor: 4.033

2.  Conformation of self-assembled porphyrin dimers in liposome vesicles by phase-modulation 2D fluorescence spectroscopy.

Authors:  Geoffrey A Lott; Alejandro Perdomo-Ortiz; James K Utterback; Julia R Widom; Alán Aspuru-Guzik; Andrew H Marcus
Journal:  Proc Natl Acad Sci U S A       Date:  2011-09-22       Impact factor: 11.205

3.  Investigations of intermediates appearing in the reassociation of the light-harvesting 1 complex of Rhodospirillum rubrum.

Authors:  Anjali Pandit; Ivo H M van Stokkum; Sofia Georgakopoulou; Gert van der Zwan; Rienk van Grondelle
Journal:  Photosynth Res       Date:  2003       Impact factor: 3.573

4.  The quantitative relationship between structure and polarized spectroscopy in the FMO complex of Prosthecochloris aestuarii: refining experiments and simulations.

Authors:  Markus Wendling; Milosz A Przyjalgowski; Demet Gülen; Simone I E Vulto; Thijs J Aartsma; Rienk van Grondelle; Herbert van Amerongen
Journal:  Photosynth Res       Date:  2002       Impact factor: 3.573

5.  Purification and characterization of the B808-866 light-harvesting complex from green filamentous bacterium Chloroflexus aurantiacus.

Authors:  Yueyong Xin; Su Lin; Gabriel A Montaño; Robert E Blankenship
Journal:  Photosynth Res       Date:  2005-11       Impact factor: 3.573

6.  The origin of the split B800 absorption peak in the LH2 complexes from Allochromatium vinosum.

Authors:  Alexander Löhner; Anne-Marie Carey; Kirsty Hacking; Nichola Picken; Sharon Kelly; Richard Cogdell; Jürgen Köhler
Journal:  Photosynth Res       Date:  2014-08-24       Impact factor: 3.573

7.  Circular dichroism of carotenoids in bacterial light-harvesting complexes: experiments and modeling.

Authors:  S Georgakopoulou; R van Grondelle; G van der Zwan
Journal:  Biophys J       Date:  2004-08-23       Impact factor: 4.033

8.  Functional electric field changes in photoactivated proteins revealed by ultrafast Stark spectroscopy of the Trp residues.

Authors:  Jérémie Léonard; Erwin Portuondo-Campa; Andrea Cannizzo; Frank van Mourik; Gert van der Zwan; Jörg Tittor; Stefan Haacke; Majed Chergui
Journal:  Proc Natl Acad Sci U S A       Date:  2009-04-28       Impact factor: 11.205

9.  Electron cryo-microscopy of TPPS4⋅2HCl tubes reveals a helical organisation explaining the origin of their chirality.

Authors:  Judith M Short; John A Berriman; Christian Kübel; Zoubir El-Hachemi; Jean-Valère Naubron; Teodor Silviu Balaban
Journal:  Chemphyschem       Date:  2013-07-31       Impact factor: 3.102
  9 in total

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