Effectivity of crude versus purified mycobacterial secretory proteins as immunogen for optimum antibody production.
Indian J Exp Biol
;
2005 Dec; 43(12): 1196-8
Article
in English
| IMSEAR
| ID: sea-56963
ABSTRACT
Monospecific antibodies have been successfully utilized in antigen detection, which is better indicator of active infection. Mycobacterium tuberculosis excretory secretory (M tb ES) antigens such as ES 31, ES 41 and ES 43 (31 kDa, 41 kDa and 43 kDa protein, respectively) have been shown to be present in Mycobacterium tuberculosis H37Ra culture filtrate and are of diagnostic interest. To study the immunogenic potential of crude versus purified antigen, goat was immunized with M tb detergent soluble sonicate (DSS) antigen as well as purified antigen fraction (ESAS 7) containing ES 31 antigen. Both anti-DSS IgG antibody and anti ESAS 7 IgG antibody were found to be reactive with ES 31 antigen upto 1 ng concentration of antibody by ELISA. Crude DSS antigen was found to be quite effective in producing high titre antibodies and showed further high reactivity with other ES antigens (ES 41 and ES 43) of diagnostic interest.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Bacterial Proteins
/
Goats
/
Tuberculosis Vaccines
/
Animals
/
Antibodies, Bacterial
/
Mycobacterium
/
Mycobacterium tuberculosis
/
Antigens, Bacterial
Language:
English
Journal:
Indian J Exp Biol
Year:
2005
Type:
Article
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