Anti-His6-Peroxidase is a monoclonal antibody to His6-tagged proteins, conjugated to horseradish peroxidase. Anti-His6-Peroxidase specifically recognizes an epitope of six consecutive histidine residues of both natural and recombinant proteins. The antibody reacts with native and denatured histidine-tagged fusion proteins independent of the epitope-sequence location; however, it preferentially recognizes the C-terminal His6 epitope with high sensitivity.