Connolly et al. [Neurology 48 (1997) 243] reported that IgM M-proteins from three patients selectively binds to an epitope on β-tubulin that consists of amino acids 301 to 314. We therefore investigated whether these 14 amino acid residues β301–314 are the target epitope for serum IgMs in sera from 67 patients with chronic inflammatory demyelinating polyneuropathy (CIDP), 50 with Guillain-Barré syndrome, 50 with motor neuron diseases, and 50 normal controls. IgM anti-β301–314 antibodies were not restricted to nor were selectively associated with CIDP. We conclude that β301–314 is not a target epitope for serum IgMs in CIDP.
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Accepted: November 24, 1998
Received in revised form: October 9, 1998
Received: June 15, 1998
© 1999 Elsevier Science B.V. Published by Elsevier Inc. All rights reserved.