Anti-Biotin Ligase Epitope Tag Antibody has been tested in ELISA and Western Blot. Western blot analysis of B. subtilis strains producing either (BAP-tagged) SPoIIIAH (XWB49) or (BAP-tagged) SpoIIQ (XWB46) showed strong and specific reactivity to the antisera. Minor background bands of unknown identity may be observed. The antisera will recognize the BAP/BLT tag irrespective of the whether the tag is biotinylated (data not shown).