Files in this item



application/pdf8026599.PDF (3MB)Restricted to U of Illinois
(no description provided)PDF


Title:The Influence of Pressure on The Low-Temperature Kinetics of Myoglobin
Author(s):Sorensen, Larry Brice
Department / Program:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Physics, Molecular
Abstract:The recombination of carbon monoxide and dioxygen to horse and sperm whale myoglobin at low temperatures (60 - 160K) was studied using high pressure flash photolysis techniques. By comparing the pressure dependence when the system is first frozen and then pressurized with the pressure dependence when the system is first pressurized and then frozen, the total volume change for the reaction can be resolved into an activation volume component and a conformational volume component. Strong evidence requiring both conformational volume and activation volume components was found. Over the pressure range studied (0.1 - 200 MPa) the observed volume changes were independent of the applied pressure.
At low temperatures, the recombination reaction must be described by a distribution of activation enthalpies. A simple configuration coordinate model was developed which predicts distributions in excellent agreement with the observed distributions.
Issue Date:1980
Description:155 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1980.
Other Identifier(s):(UMI)AAI8026599
Date Available in IDEALS:2015-05-13
Date Deposited:1980

This item appears in the following Collection(s)

Item Statistics