Biomaterial Database

Separate antigenic determinants on cell wall associated carbohydrate antigens of Mycobacterium leprae defined with monoclonal antibodies. 1986

W J Britton, and L Hellqvist, and A Basten

Monoclonal antibodies (Mabs) raised against Mycobacterium leprae sonicate defined two different determinants on related, cell-wall-associated, carbohydrate antigens common to M. leprae, M. bovis (BCG), and M. tuberculosis. Antigen inhibition ELISA and antigen capture assays demonstrated that the two antigens were present in a cell-wall fraction, M. leprae resonicate. There was species variation in the distribution of the antigens; the 4.5-6 kD antigen was more abundant in M. tuberculosis and M. bovis, while the 30-40 kD antigen was more concentrated in M. leprae preparations. Although both were present in the cell wall, only determinants on the 30-40 kD antigen were accessible on intact bacilli. The results from capture assays and Mab affinity chromatography with both L9 and L4 indicated that the 4.5-6 kD antigen was probably a fragment of the larger molecule. Both antigens are significant immunogens in the human B-cell response to M. leprae.

UI	MeSH Term	Description	Entries
D008970	Molecular Weight	The sum of the weight of all the atoms in a molecule.	Molecular Weights,Weight, Molecular,Weights, Molecular
D009163	Mycobacterium bovis	The bovine variety of the tubercle bacillus. It is called also Mycobacterium tuberculosis var. bovis.	BCG,Calmette-Guerin Bacillus
D009166	Mycobacterium leprae	A species of gram-positive, aerobic bacteria that causes LEPROSY in man. Its organisms are generally arranged in clumps, rounded masses, or in groups of bacilli side by side.
D009169	Mycobacterium tuberculosis	A species of gram-positive, aerobic bacteria that produces TUBERCULOSIS in humans, other primates, CATTLE; DOGS; and some other animals which have contact with humans. Growth tends to be in serpentine, cordlike masses in which the bacilli show a parallel orientation.	Mycobacterium tuberculosis H37Rv
D011135	Polysaccharides, Bacterial	Polysaccharides found in bacteria and in capsules thereof.	Bacterial Polysaccharides
D002473	Cell Wall	The outermost layer of a cell in most PLANTS; BACTERIA; FUNGI; and ALGAE. The cell wall is usually a rigid structure that lies external to the CELL MEMBRANE, and provides a protective barrier against physical or chemical agents.	Cell Walls,Wall, Cell,Walls, Cell
D000907	Antibodies, Bacterial	Immunoglobulins produced in a response to BACTERIAL ANTIGENS.	Bacterial Antibodies
D000911	Antibodies, Monoclonal	Antibodies produced by a single clone of cells.	Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal
D000939	Epitopes	Sites on an antigen that interact with specific antibodies.	Antigenic Determinant,Antigenic Determinants,Antigenic Specificity,Epitope,Determinant, Antigenic,Determinants, Antigenic,Specificity, Antigenic
D000942	Antigens, Bacterial	Substances elaborated by bacteria that have antigenic activity.	Bacterial Antigen,Bacterial Antigens,Antigen, Bacterial