Mapping energy transfer channels in fucoxanthin-chlorophyll protein complex.

Research output: Contribution to journalArticle


Fucoxanthin-chlorophyll protein (FCP) is the key molecular complex performing the light-harvesting function in diatoms, which, being a major group of algae, are responsible for up to one quarter of the total primary production on Earth. These photosynthetic organisms contain an unusually large amount of the carotenoid fucoxanthin, which absorbs the light in the blue-green spectral region and transfers the captured excitation energy to the FCP-bound chlorophylls. Due to the large number of fucoxanthins, the excitation energy transfer cascades in these complexes are particularly tangled. In this work we present the two-color two-dimensional electronic spectroscopy experiments on FCP. Analysis of the data using the modified decay associated spectra permits a detailed mapping of the excitation frequency dependent energy transfer flow with a femtosecond time resolution.


  • Andrius Gelzinis
  • Vytautas Butkus
  • Egidijus Songaila
  • Ramūnas Augulis
  • Andrew Gall
  • Claudia Büchel
  • Bruno Robert
  • Darius Abramavicius
  • Donatas Zigmantas
  • Leonas Valkunas
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Biological Sciences
Original languageEnglish
Pages (from-to)241-247
JournalBiochimica et biophysica acta
Issue number2
Publication statusPublished - 2015
Publication categoryResearch

Bibliographic note

The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)