An Electrophoretically Homogeneous Component of Ragweed Producing Hay Fever. ∗

Abstract

Summary

Ultracentrifugal and diffusion studies of the major colorless components of both giant and dwarf ragweed extracts indicate that these major components are of fairly low molecular weight and do not have the ordinary chemical reactions of proteins. The low molecular weight which fits in with the high biological activity is in accord with the ability of these molecules to enter the mucous membranes, produce hay fever, and be transported into the skin by electrophoresis.