14-3-3未/尉 was localized to cell surface in the primary culture of cortical neurons.
Anti-14-3-3未/尉 antibody induced neuronal cell death via H2O2.
Catalase suppressed the antibody-generated H2O2.
Catalase inhibited the neurotoxicity of anti-14-3-3未/尉 antibody.
c-Jun N-terminal kinase partially contributed to the neurotoxicity.