beta-Crustacyanin, the blue-purple carotenoprotein of lobster carapace: consideration of the bathochromic shift of the protein-bound astaxanthin.

@article{Zagalsky2003betaCrustacyaninTB,
  title={beta-Crustacyanin, the blue-purple carotenoprotein of lobster carapace: consideration of the bathochromic shift of the protein-bound astaxanthin.},
  author={P. F. Zagalsky},
  journal={Acta crystallographica. Section D, Biological crystallography},
  year={2003},
  volume={59 Pt 8},
  pages={
          1529-31
        }
}
  • P. F. Zagalsky
  • Published 2003
  • Chemistry, Medicine
  • Acta crystallographica. Section D, Biological crystallography
The crystal structure of a beta-crustacyanin allows an analysis of the various proposals for the mechanism of the bathochromic shift from orange to purple-blue of astaxanthin in this lobster carotenoprotein. Structural and previous chemical and biophysical studies suggest that extension of conjugation by coplanarization of the beta-ionone rings with the polyene chain and polarization resulting from hydrogen bonding at the C(4) and C(4') keto groups may be mainly responsible for the bathochromic… Expand
Conformational dependence of the electronic absorption by astaxanthin and its implications for the bathochromic shift in crustacyanin
The conformational dependence of the electronic absorption by astaxanthin is believed to be of relevance for the bathochromic shift that this carotenoid assumes upon binding to crustacyanin, theExpand
The structural chemistry and structural biology of colouration in marine crustacea
The colouration of the lobster shell, famously known from its colour change on cooking, derives from a complicated mix of astaxanthin carotenoid molecules and several proteins in complex. Crystals ofExpand
Origin of the bathochromic shift of astaxanthin in lobster protein: 2D electronic spectroscopy investigation of β-crustacyanin.
TLDR
The origin of the shift is proposed to be caused by two major effects: conformational changes of astaxanthin molecules (increase in effective conjugation length) together with increased charge-transfer character of the S2 state, and put the bathochromic shift in the broad perspective of other "blue" carotenoids properties. Expand
Evolution of a novel carotenoid-binding protein responsible for crustacean shell color.
TLDR
It is submitted that the origin of the CRCN gene family early in the evolution of malacostracan crustaceans significantly contributed to the success of this group of arthropods. Expand
Protein-bound chromophores astaxanthin and phytochromobilin: excited state quantum chemical studies.
TLDR
The application of time-dependent density functional theory and other single-reference quantum chemical excited state methods have contributed to shed new light on the origin of the >0.5 eV bathochromic shift of the electronic absorption by the carotenoid astaxanthin in the protein macromolecular complex crustacyanin. Expand
Protonated canthaxanthins as models for blue carotenoproteins.
TLDR
It has been suggested that astaxanthin (3,3'-dihydroxy-beta,beta-carotene-4,4'-dione) in the carotenoprotein alpha-crustacyanin occurs in the diprotonated form, and the experimental evidence for protonated canthaxanthins differs significantly from previous AM1 calculations. Expand
Mechanism of carotenoid coloration in the brightly colored plumages of broadbills (Eurylaimidae)
TLDR
Six different carotenoids from nine different plumage patches were identified, including two previously unknown molecules, using high-performance liquid chromatography, mass spectrometry, and MS/MS fragment analysis, resulting in the identification of six species from five genera of broadbills (Eurylaimidae) that have been examined. Expand
Vibrational and electronic spectroscopy of the retro-carotenoid rhodoxanthin in avian plumage, solid-state films, and solution.
TLDR
Rhodoxanthin is characterized in situ by UV-Vis reflectance and resonance Raman spectroscopy to gain insights into the mechanisms of color-tuning and it is suggested that the shift in absorption is likely a consequence of perturbations that primarily affect the excited state of the chromophore. Expand
Astaxanthin binding and structural stability of the apple snail carotenoprotein ovorubin.
TLDR
Astaxanthin (ASX) is not essential for OR stability, unlike most invertebrate carotenoproteins, which supports the idea that OR plays an important physiological role in the storage, transport and protection ofcarotenoids during snail embryogenesis. Expand
The major egg reserve protein from the invasive apple snail Pomacea maculata is a complex carotenoprotein related to those of Pomacea canaliculata and Pomacea scalaris.
TLDR
The characterization of PmPV1 allows the first comparisons among snail carotenoproteins and further highlights the importance of these perivitellins in the reproductive strategy of Pomacea. Expand
...
1
2
3
...

References

SHOWING 1-7 OF 7 REFERENCES
Mechanisms of spectral shifts in lobster carotenoproteins. The resonance Raman spectra of ovoverdin and the crustacyanins.
Resonance Raman data have been used to elucidate the mechanisms of the absorption spectral shifts occurring for astaxanthin upon binding to the carotenoproteins, ovoverdin and alpha-,beta- andExpand
The mechanism of the colour shift of astaxanthin in α-crustacyanin as investigated by 13C MAS NMR and specific isotope enrichment
By selective isotope enrichment of astaxanthin, MAS NMR and semi-empirical modelling, ligand-protein interactions associated with the red shift in a-crustacyanin, the major blue astaxanthin bindingExpand
Theoretical Study of Electron Transfer in Ferrocytochromes
A series of calculations is reported of the superexchange electronic matrix element between donor and acceptor states in photoinduced long-distance electron-transfer reactions in seven Ru-modifiedExpand
Correlation between theory and experiment in electron-transfer reactions in proteins: electronic couplings in modified cytochrome c and myoglobin derivatives
The artificial intelligence-superexchange method of estimating the long-range electronic coupling in proteins that we have developed previously is used to study electron-transfer reactions inExpand
Carotenoid blues: structural studies on carotenoproteins
b Abstract: a-Crustacyanin, the 320 kDa astaxanthin-protein from the carapace of the lobster, Homarus gammarus, is the best known of the blue-purple carotenoproteins found in marine invertebrateExpand
Vibrational spectra of some carotenoids and related linear polyenes. A Raman spectroscopic study.