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Preliminary Studies of the Ultracentrifugal and Free Zone 



Electrophoresis Characteristics of Neutral Soluble Proteins of 



Bovine Embryo Enamel 



E. P. Katz, G. Mechanic, M. J. Glimcher 



Department of Orthopedic Surgery, the Harvard Medical School, and the Massachusetts 

 General Hospital, Boston, Mass., U. S. A. 



Introduction 



The organic matrix of tooth enamel is the most densely calcified tissue in the 

 body. In order to understand calcification and its many facets, one of the pre- 

 requisites is to first learn as much as we can about the chemistry and molecular struc- 

 ture of the fibrous proteins that are involved. Much knowledge has been gained in the 

 past about the physical and chemical properties of collagen but relatively little is 

 known of the fibrous protein that constitutes the organic matrix of dental enamel. 



