Comparison of calculated and experimentally resolved rate constants for excitation energy transfer in C-phycocyanin. 2. Trimers

Journal Article · Thu May 18 00:00:00 EDT 1995 · Journal of Physical Chemistry

DOI:https://doi.org/10.1021/j100020a081· OSTI ID:62307

Debreczeny, M F; Sauer, K ^[1]; Zhou, J; Bryant, D A ^[2]

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1. Lawrence Berkeley Lab., CA (United States)
2. Pennsylvania State Univ., University Park, PA (United States)

Resolution of the absorption spectrum of the {beta}{sub 155} chromophore in C-phycocyanin (PC) trimers is achieved by comparison of the steady state absorption spectra of ({alpha}{sup PC}{beta}{sup PC}){sub 3} and ({alpha}{sup PC}{beta}{sup *}){sub 3}. Comparison of the anisotropy decays of ({alpha}{sup PC}{beta}{sup PC}){sub 3} and ({alpha}{sup PC}{beta}{sup *}){sub 3} also greatly aids in the assignment of the dominant kinetic processes in PC trimers. A comparison is made of calculated Foerster rate constants for energy transfer with those rate constants resolved experimentally in the PC trimers. 35 refs.., 10 figs., 2 tabs.

• Sponsoring Organization: USDOE
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 62307
• Journal Information: Journal of Physical Chemistry, Vol. 99, Issue 20; Other Information: PBD: 18 May 1995
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
14 SOLAR ENERGY
PROTEINS
ENERGY TRANSFER
EXCITATION
PHOTOSYNTHESIS
FLUORESCENCE
ABSORPTION SPECTRA
MONOMERS
TIME RESOLUTION
EMISSION SPECTRA
LASERS
COMPILED DATA