Murine anti-ESAT-6 M.tuberculosis Antigen Monoclonal Antibody

ImmunoDXSKU: 115-10


Product Specifications:

Item# 115-10: Murine anti-ESAT-6 M.tuberculosis Antigen Monoclonal Antibody 

 Antibody Class: IgG ( Isoptype:ND) 

 Concentration: See vial

 Mass/vial: 100µg

 Purity: >95%

 Stabilizer: None

 Preservative: None

 Physical State: Frozen Liquid

 Storage: -75°C

 Stability: At least 24 months s at -75oC

 Applications: ELISA, Western ELISA, Immuno precipitation. 

 Description: High affinity murine anti-ESAT-6 M. tuberculosis antigen-specific monoclonal antibody.

 Specificity: Binds to native and recombinant ESAT-6 in Elisa and Western Elisa.

 Biological Activity: Not determined.

 Application and Instructions for use:

 Recommended dilutions for use are approximate values. A dose dependent response assay should be performed to determine the optimal concentration for use in specific applications. ELISA may be performed at 1ug/ml of mAb depending on the amount of immobilized antigen in the assays. Western ELISA requires 1-5µg of mAb/ml.

Academic articles related to Murine mAb ESAT-6

Novel monoclonal antibodies to ESAT-6 and CFP-10 antigens for ELISA-based diagnosis of pleural tuberculosis.


To elucidate the potential of monoclonal antibodies (mAbs) of culture filtrate protein 10 (CFP-10) and early secretory antigenic target 6 (ESAT-6) in tuberculosis (TB) diagnosis.


We generated and characterized monoclonal and polyclonal antibodies against Mycobacterium tuberculosis-specific antigens ESAT-6 and CFP-10 by immunising BALB/c mice with an ESAT-6/CFP-10 fusion protein. Stable hybridoma cell lines were established and mAbs were specifically identified by immunoblotting and immuno precipitation. The mouse mAbs were used to coat plates, and biotin-labelled polyclonal antibodies were used to detect the antigens. One hundred and seventy-three samples of sputum culture supernatants and pleural effusion aspirates have been tested.


The ESAT-6 enzyme-linked immunosorbent assay (ELISA) detected the culture supernatants and pleural effusion specimens that were positive for M. tuberculosis, but failed to identify M. tuberculosis-positive specimens in the non-M. tuberculosis culture supernatants or control specimens. This yielded a sensitivity of 95.4% and a specificity of 100% for the ESAT-6-specific ELISA. The CFP-10 ELISA presented less satisfactory sensitivity and specificity, of respectively 81.6% and 92.2%. Results showed positive detection rates of ESAT-6 and CFP-10 of 86.8% (33/38) and 76.3% (29/38) for the diagnosis of tuberculous pleural effusion in patients bacteriologically negative for M. tuberculosis culture.


The ESAT-6 and CFP-10 ELISAs incorporating mAbs generated in this study serve as potential tools in the laboratory diagnosis of TB.

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