Anti-TB 38Kd Antigen Antibody [C12H11]

The 38 kDa protein of Mycobacterium tuberculosis (encoded by Rv0934 / phoS1) is a well-characterized immunodominant surface antigen frequently targeted in serological TB research. This mouse monoclonal IgG2a antibody, clone C12H11, recognizes that antigen and is supplied by Antibodies.com as a lyophilised 100 µg vial intended for ELISA and western blot workflows. The unconjugated format allows direct labelling or pairing with custom secondary reagents, while the monoclonal nature of the reagent provides lot-to-lot consistency for longitudinal studies of humoral responses in patient cohorts.

For reconstitution, the lyophilised pellet is typically resuspended in sterile distilled water or appropriate buffer; small aliquots are recommended to limit repeated freeze-thaw cycles. Short-term refrigerated storage is appropriate following reconstitution, with -20°C recommended for longer-term preservation. The single-use vial may be paired with HRP- or fluorescent-labelled secondary antibodies depending on the assay design. Researchers investigating tuberculosis diagnostics, antigen discovery, or BCG vaccination responses will find this clone useful for both immunodetection of the 38 kDa band in mycobacterial lysates and plate-based serology protocols.