An isolated peptide or fusion having the peptide useful to interfere with the phosphorylation of Nox1, block or inhibit binding of NoxA1 activation domain (AD) to Nox1, and/or prevent or inhibit assembly of the p47phox/NoxA1 complex with Nox1, or a vector encoding the peptide or fusion thereof, and methods of using the peptide, fusion or vector are provided.