Abstract

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 .

  Funding Agency

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

  Institution

Name
University of Maryland Baltimore
Department
Type
DUNS #
003255213
City
Baltimore
State
MD
Country
United States
Zip Code
21201

  Publications

Piao, Wenji; Shirey, Kari Ann; Ru, Lisa W et al. (2015) A Decoy Peptide that Disrupts TIRAP Recruitment to TLRs Is Protective in a Murine Model of Influenza. Cell Rep 11:1941-52
Hartman, Kira G; McKnight, Laura E; Liriano, Melissa A et al. (2013) The evolution of S100B inhibitors for the treatment of malignant melanoma. Future Med Chem 5:97-109
Fu, Yi; Zhang, Jian; Lakowicz, Joseph R (2009) Highly efficient detection of single fluorophores in blood serum samples with high autofluorescence. Photochem Photobiol 85:646-51
Zhang, Jian; Badugu, Ramachandram; Lakowicz, Joseph R (2008) Fluorescence Quenching of CdTe Nanocrystals by Bound Gold Nanoparticles in Aqueous Solution. Plasmonics 3:3-11
Zhang, Jian; Fu, Yi; Chowdhury, Mustafa H et al. (2007) Metal-enhanced single-molecule fluorescence on silver particle monomer and dimer: coupling effect between metal particles. Nano Lett 7:2101-7
Zhang, Jian; Fu, Yi; Chowdhury, Mustafa H et al. (2007) Single-Molecule Studies on Fluorescently Labeled Silver Particles: Effects of Particle Size. J Phys Chem C Nanomater Interfaces 112:18
Zhang, Jian; Fu, Yi; Lakowicz, Joseph R (2007) Single cell fluorescence imaging using metal plasmon-coupled probe. Bioconjug Chem 18:800-5
Zhang, Jian; Fu, Yi; Lakowicz, Joseph R (2007) Emission Behavior of Fluorescently Labeled Silver Nanoshell: Enhanced Self-Quenching by Metal Nanostructure. J Phys Chem C Nanomater Interfaces 111:1955-1961
Zhang, Jian; Lakowicz, Joseph R (2007) Metal-enhanced fluorescence of an organic fluorophore using gold particles. Opt Express 15:2598-606
Fu, Yi; Lakowicz, Joseph R (2007) Single-Molecule Studies of Enhanced Fluorescence on Silver Island Films. Plasmonics 2:1-4

Showing the most recent 10 out of 44 publications