BIOPHYSICAL STUDIES OF BLOOD PLASMA PROTEINS

Abstract

(Received for publication, March 28, 1949) The blood serum (1) and plasma (2) proteins of various relatively easily accessible animals have been studied previously by the electrophoretic technique. The serum proteins of each species were found to give char- acteristic species variations in mobility, amount, and number of protein components. An electrophoretic study of the blood serum proteins of various animals of relatively lower phylogenetic order has revealed that the same species specificity of the plasma proteins that exists among the higher animals likewise obtains among the lower forms.