Resonance Raman Spectroscopy of Galactose Oxidase: A New Interpretation Based on Model Compound Free Radical Spectra

1995 ◽  
Vol 99 (14) ◽  
pp. 4918-4922 ◽  
Author(s):  
Michael L. McGlashen ◽  
Daniel D. Eads ◽  
Thomas G. Spiro ◽  
James W. Whittaker
1975 ◽  
Vol 36 (1) ◽  
pp. 76-78 ◽  
Author(s):  
R. Wilbrandt ◽  
P. Pagsberg ◽  
K.B. Hansen ◽  
C.V. Weisberg

1999 ◽  
Vol 19 (1-4) ◽  
pp. 311-316 ◽  
Author(s):  
Susan M. Tavender ◽  
Steven A. Johnson ◽  
Daniel Balsom ◽  
Anthony W. Parker ◽  
Roger H. Bisby

The carbonate radical (Co3−·) is of biological significance acting as an intermediate in free radical-mediated damage and is capable of oxidising amino acids and proteins. In order to distinguish between the four possible structures of Co3−·, nanosecond timeresolved resonance Raman (TR3) experiments were undertaken. Photolysis of persulphate at 250 nm generated the So4−· radical which then oxidised sodium carbonate. Resonance Raman spectra of the resulting Co3−· radical were obtained using a probe wavelength of 620 nm. Point group theory calculations and interpretation of the TR3 spectra suggest that the radical has C2v molecular symmetry.


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