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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 31, Number 4
BKCSDE 31(4)
April 20, 2010 

 
Title
Theoretical Study of the Relationships between Excited State Geometry Changes and Emission Energies of Oxyluciferin
Author
Zhong wei Li, Chun gang Min, Ai min Ren*, Jing fu Guo, John D Goddard, Ji kang Feng, Liang Zuo
Keywords
Firefly, Oxyluciferin, Bioluminescence, Luciferases, TDDFT
Abstract
In order to find a relationship between firefly luciferases structure and bioluminescence spectra, we focus on excited substrate geometries which may be affected by rigid luciferases. Density functional theory (DFT) and time dependent DFT (TDDFT) were employed. Changes in only six bond lengths of the excited substrate are important in determining the emission spectra. Analysis of these bonds suggests the mechanism whereby luciferases restrict more or less the excited substrate geometries and to produce multicolor bioluminescence.
Page
895 - 900
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