OriGene overexpression protein microarray chip was immunostained with ultraMAB anti-ERBB2 mouse monoclonal antibody (Clone UMAB35). The positive reactive proteins are highlighted with two red arrows in the enlarged subarray. All the positive controls spotted in this subarray are also labeled for clarification. These data show that ultraMAB anti-ERBB2 (Clone UMAB35) very specifically recognizes ERBB2 antigen on OriGene protein microarray chip.