One of the most accepted and trusted methods for verifying antibody specificity is knockout verification. To ensure that our antibodies are specific and provide repeatable results, we recently introduced knockout (KO/KD) verification.Using human KO/KD cell lines, through if you out/if you Down, in the KO test specific antibody cell line, the specific antibody won't produce signals, but in the wild type (WT) cell line test specific antibody, specific antibody specific target protein signal is produced.