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Title:Infrared spectroscopy of photodissociated carboxymyoglobin
Author(s):Good, David Eckert
Doctoral Committee Chair(s):Frauenfelder, Hans
Department / Program:Physics
Discipline:Physics
Degree:Ph.D.
Genre:Dissertation
Subject(s):infrared spectroscopy
photodissociated carboxymyoglobin
myoglobin
Abstract:Infrared spectra of carbon monoxide bound myoglobin reveal several lines due only to the carbon monoxide. Studies with isotopically enriched CO confirm the assignment of these lines. After photodissociation, the lines shift and change in extinction coefficient, giving an indication of the nature of the neighborhood of the photodissociated CO. At temperatures between 10K and lOOK three different CO environments are seen after photodissociation, with relative populations depending on temperature. Two forms are found to be weakly bound to the protein, but not at the iron center. The third form moves freely within a cavity formed by the protein structure. The binding entha1pies relative to the third form have been determined.
Issue Date:1981
Genre:Dissertation / Thesis
Type:Text
Language:English
URI:http://hdl.handle.net/2142/25428
Rights Information:1981 David Eckert Good
Date Available in IDEALS:2011-06-16
Identifier in Online Catalog:487673


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