Ultrafast time-resolved fluorescence spectroscopy was applied to study physical properties of the phycobiliprotein R-phycoerythrin. R-phycoerythrin is a protein from the group of red algal bili-proteins. This protein has 2 types of chromophores: phycourobilin (PUB) and phycoerythrobilin (PEB). Radiationless interaction between PUB and PEP was examined under different conditions using one and two-photon excitation. The optical spectra of phycoerythrin 545 shows for types of behavior with temperature: forming a dimer at low temperature (10-20 C), partially dissociates to monomer at 40-50 C, nearly fully disordered at 60 C and at 70 disordered into ` and peptides .

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR008119-08
Application #
6315382
Study Section
Project Start
2000-04-01
Project End
2001-03-31
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
8
Fiscal Year
2000
Total Cost
$28,294
Indirect Cost
Name
University of Maryland Baltimore
Department
Type
DUNS #
003255213
City
Baltimore
State
MD
Country
United States
Zip Code
21201
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