Journal of Neuroscience, Vol 1, 461-470, Copyright © 1981 by Society for Neuroscience
The loss of neuron-specific proteins during the course of Wallerian degeneration of optic and sciatic nerve
D Soifer, K Iqbal, H Czosnek, J De Martini, JA Sturman and HM Wisniewski
To identify axonal proteins which are unique constituents of neurons, the
spectrum of detectable proteins of degenerating nerves has been compared
with that of intact control nerves from the same animals. Wallerian
degeneration was induced in rabbits by unilateral transection of the optic
and sciatic nerves. Proteins of nerve homogenates were compared by sodium
dodecyl sulfate-gel electrophoresis and by two- dimensional
electrophoresis. Four non-myelin proteins disappear from degenerating
nerve. These include the three neurofilament proteins (P68, P150, and P200)
and a polypeptide with a molecular weight of about 65,000 daltons (P65)
which is not associated with filaments.