Ontology highlight
ABSTRACT:
SUBMITTER: Ketelaars M
PROVIDER: S-EPMC1301351 | biostudies-other | 2001 Mar
REPOSITORIES: biostudies-other
Ketelaars M M van Oijen A M AM Matsushita M M Köhler J J Schmidt J J Aartsma T J TJ
Biophysical journal 20010301 3
The electronic structure of the circular aggregate of 18 bacteriochlorophyll a (BChl a) molecules responsible for the B850 absorption band of the light-harvesting 2 (LH2) complex of the photosynthetic purple bacterium Rhodopseudomonas acidophila has been studied by measuring fluorescence-excitation spectra of individual complexes at 1.2 K. The spectra reveal several well-resolved bands that are obscured in the single, broad B850 band observed in conventional absorption measurements on bulk sampl ...[more]