Sturctural homologies in mammalian neurofilament proteins.

Antibody has been prepared to purified neurofilament protein extracted from calf brain. This antibody crossreacts with brain and nerve extracts from all mammals tested but fails to crossreact with frog, cod and chicken nerve extracts. Thus the serologic homology of these neurofilament proteins appears to be restricted to the mammals. Structural similarities between the mammalian neurofilament protein are also indicated by the strong resemblance between iodinated peptide maps prepared from the electrophoretically purified neurofilament proteins.