Topics in Fluorescence Spectroscopy: Volume 6: Protein Fluorescence
The intrinsic or natural fluorescence of proteins is perhaps the most complex area of biochemical fluorescence. Fortunately the fluorescent amino acids, phenylalanine, tyrosine and tryptophan are relatively rare in proteins. Tr- tophan is the dominant intrinsic fluorophore and is present at about on...
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Format: | Elektronisch E-Book |
Sprache: | English |
Veröffentlicht: |
Boston, MA
Springer US
2000
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Schriftenreihe: | Topics in Fluorescence Spectroscopy
6 |
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Online-Zugang: | UBT01 Volltext |
Zusammenfassung: | The intrinsic or natural fluorescence of proteins is perhaps the most complex area of biochemical fluorescence. Fortunately the fluorescent amino acids, phenylalanine, tyrosine and tryptophan are relatively rare in proteins. Tr- tophan is the dominant intrinsic fluorophore and is present at about one mole % in protein. As a result most proteins contain several tryptophan residues and even more tyrosine residues. The emission of each residue is affected by several excited state processes including spectral relaxation, proton loss for tyrosine, rotational motions and the presence of nearby quenching groups on the protein. Additionally, the tyrosine and tryptophan residues can interact with each other by resonance energy transfer (RET) decreasing the tyrosine emission. In this sense a protein is similar to a three-particle or mul- particle problem in quantum mechanics where the interaction between particles precludes an exact description of the system. In comparison, it has been easier to interpret the fluorescence data from labeled proteins because the fluorophore density and locations could be controlled so the probes did not interact with each other. From the origins of biochemical fluorescence in the 1950s with Prof- sor G. Weber until the mid-1980s, intrinsic protein fluorescence was more qualitative than quantitative. An early report in 1976 by A. Grindvald and I. Z. Steinberg described protein intensity decays to be multi-exponential. Attempts to resolve these decays into the contributions of individual tryp- phan residues were mostly unsuccessful due to the difficulties in resolving closely spaced lifetimes |
Beschreibung: | 1 Online-Ressource (XXI, 310 p) |
ISBN: | 9780306471025 |
DOI: | 10.1007/b115628 |
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520 | |a The intrinsic or natural fluorescence of proteins is perhaps the most complex area of biochemical fluorescence. Fortunately the fluorescent amino acids, phenylalanine, tyrosine and tryptophan are relatively rare in proteins. Tr- tophan is the dominant intrinsic fluorophore and is present at about one mole % in protein. As a result most proteins contain several tryptophan residues and even more tyrosine residues. The emission of each residue is affected by several excited state processes including spectral relaxation, proton loss for tyrosine, rotational motions and the presence of nearby quenching groups on the protein. Additionally, the tyrosine and tryptophan residues can interact with each other by resonance energy transfer (RET) decreasing the tyrosine emission. In this sense a protein is similar to a three-particle or mul- particle problem in quantum mechanics where the interaction between particles precludes an exact description of the system. In comparison, it has been easier to interpret the fluorescence data from labeled proteins because the fluorophore density and locations could be controlled so the probes did not interact with each other. From the origins of biochemical fluorescence in the 1950s with Prof- sor G. Weber until the mid-1980s, intrinsic protein fluorescence was more qualitative than quantitative. An early report in 1976 by A. Grindvald and I. Z. Steinberg described protein intensity decays to be multi-exponential. Attempts to resolve these decays into the contributions of individual tryp- phan residues were mostly unsuccessful due to the difficulties in resolving closely spaced lifetimes | ||
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spelling | Topics in Fluorescence Spectroscopy Volume 6: Protein Fluorescence edited by Joseph R. Lakowicz Boston, MA Springer US 2000 1 Online-Ressource (XXI, 310 p) txt rdacontent c rdamedia cr rdacarrier Topics in Fluorescence Spectroscopy 6 The intrinsic or natural fluorescence of proteins is perhaps the most complex area of biochemical fluorescence. Fortunately the fluorescent amino acids, phenylalanine, tyrosine and tryptophan are relatively rare in proteins. Tr- tophan is the dominant intrinsic fluorophore and is present at about one mole % in protein. As a result most proteins contain several tryptophan residues and even more tyrosine residues. The emission of each residue is affected by several excited state processes including spectral relaxation, proton loss for tyrosine, rotational motions and the presence of nearby quenching groups on the protein. Additionally, the tyrosine and tryptophan residues can interact with each other by resonance energy transfer (RET) decreasing the tyrosine emission. In this sense a protein is similar to a three-particle or mul- particle problem in quantum mechanics where the interaction between particles precludes an exact description of the system. In comparison, it has been easier to interpret the fluorescence data from labeled proteins because the fluorophore density and locations could be controlled so the probes did not interact with each other. From the origins of biochemical fluorescence in the 1950s with Prof- sor G. Weber until the mid-1980s, intrinsic protein fluorescence was more qualitative than quantitative. An early report in 1976 by A. Grindvald and I. Z. Steinberg described protein intensity decays to be multi-exponential. Attempts to resolve these decays into the contributions of individual tryp- phan residues were mostly unsuccessful due to the difficulties in resolving closely spaced lifetimes Chemistry Analytical Chemistry Biochemistry, general Analytical chemistry Biochemistry Lakowicz, Joseph R. edt Erscheint auch als Druck-Ausgabe 9780306464515 https://doi.org/10.1007/b115628 Verlag URL des Erstveröffentlichers Volltext |
spellingShingle | Topics in Fluorescence Spectroscopy Volume 6: Protein Fluorescence Chemistry Analytical Chemistry Biochemistry, general Analytical chemistry Biochemistry |
title | Topics in Fluorescence Spectroscopy Volume 6: Protein Fluorescence |
title_auth | Topics in Fluorescence Spectroscopy Volume 6: Protein Fluorescence |
title_exact_search | Topics in Fluorescence Spectroscopy Volume 6: Protein Fluorescence |
title_full | Topics in Fluorescence Spectroscopy Volume 6: Protein Fluorescence edited by Joseph R. Lakowicz |
title_fullStr | Topics in Fluorescence Spectroscopy Volume 6: Protein Fluorescence edited by Joseph R. Lakowicz |
title_full_unstemmed | Topics in Fluorescence Spectroscopy Volume 6: Protein Fluorescence edited by Joseph R. Lakowicz |
title_short | Topics in Fluorescence Spectroscopy |
title_sort | topics in fluorescence spectroscopy volume 6 protein fluorescence |
title_sub | Volume 6: Protein Fluorescence |
topic | Chemistry Analytical Chemistry Biochemistry, general Analytical chemistry Biochemistry |
topic_facet | Chemistry Analytical Chemistry Biochemistry, general Analytical chemistry Biochemistry |
url | https://doi.org/10.1007/b115628 |
work_keys_str_mv | AT lakowiczjosephr topicsinfluorescencespectroscopyvolume6proteinfluorescence |