Abstract
An antiserum was raised to rat central nervous system (CNS) axolemma-enriched fractions (AEF), which showed no cross-reactivity with myelin proteins or liver microsomes yet gave an endpoint titer of 1:51 200 to CNS AEF by the enzyme-linked immunosorbent assay (ELISA). Immunochemical staining of electroblotted proteins from rat CNS and peripheral nervous system (PNS) AEFs separated by gel electrophoresis identified a major reactive band at 38.5 kD. CNS AEF also showed major immunoreactivity at 91 kD (+/- 3 kD) and a broad band from 110 kD to 130 kD. By immunoperoxidase staining the antiserum specifically recognized the axolemma of peripheral nerve and synaptic terminals in the CNS. The significance of the specificity is discussed with respect to anti-synaptosome antisera.
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