Protein-Induced Color Shift of Carotenoids in β-Crustacyanin

β‐Crustacyanin (β‐CR) is a pigment protein responsible for the blue color of lobsters. We show using correlated ab initio calculations how the protein environment tunes the chromophores of β‐CR through electrostatic and steric effects. True blue: The pigment protein β‐crustacyanin, which is responsi...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2015-09, Vol.54 (39), p.11564-11566
Main Authors: Gamiz-Hernandez, Ana P., Angelova, Iva Neycheva, Send, Robert, Sundholm, Dage, Kaila, Ville R. I.
Format: Article
Language:English
Subjects:
Animals
biochromophores
Carotenoids
Carotenoids - chemistry
Carrier Proteins - chemistry
Chromophores
Color
computational chemistry
Crustacea
crustacyanin
Electrostatics
Lobsters
Mathematical analysis
Pigments
Proteins
Proteins - chemistry
quantum chemsitry
Quantum Theory
spectral tuning
Steric effects
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Summary:β‐Crustacyanin (β‐CR) is a pigment protein responsible for the blue color of lobsters. We show using correlated ab initio calculations how the protein environment tunes the chromophores of β‐CR through electrostatic and steric effects. True blue: The pigment protein β‐crustacyanin, which is responsible for the blue color of lobsters, tunes the color of its two bound astaxanthin chromophores through electrostatic polarization and steric planarization.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201501609