Phycobiliprotein fluorescent conjugates
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1. A conjugate comprising an energy donor as a first component and a fluorescer as a second component joined together at an energy exchanging distance, wherein one of said first and second components is a phycobiliprotein and the two components have a spectral overlap integral of at least about 10-16 cm3 M-1.
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Abstract
Fluorescent conjugates are employed providing combinations of a fluorescent sensitizer and a fluorescent phycobiliprotein. The conjugates find use in applications where large Stokes shifts, high absorption coefficients and high fluorescence quantum yields are desired. Particularly, combinations of phycobiliproteins are employed where the wavelength of excitation may be 50 nm or more different from the emission wavelength.
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- 1. A conjugate comprising an energy donor as a first component and a fluorescer as a second component joined together at an energy exchanging distance, wherein one of said first and second components is a phycobiliprotein and the two components have a spectral overlap integral of at least about 10-16 cm3 M-1.
- 7. A conjugate comprising two phycobiliproteins joined within energy exchanging distance, wherein one of said phycobiliproteins absorbs light in the range of about 300 to 600 nm and emits light in the range of about 400 to 700 nm and the other of said phycobiliproteins absorbs light in the range of about 400 to 650 nm and emits light in the range of about 500 to 800 nm, wherein there is substantial overlap between the emission spectrum of one and the absorption spectrum of the other to provide a spectral overlap integral of at least about 10-16 cm 3 M-1.
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