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Macrophage ribonucleoprotein: nature of the antigenic fragment
Science (New York, N.Y.)
|August 8, 1969
Abstract:
The antigenic fragments of bacteriophage T2 recovered in RNA derived from macrophages infected with T2 bacteriophage retain their capacity to combine with specific neutralizing antibody to T2. The preservation of the complete native tertiary structure of tail fiber antigen of bacteriophage T2 is not requiired for immucnogenicity.
Insights
RNA fragments from bacteriophage T2-infected macrophages retain antigen-binding capacity. Complete tertiary structure of bacteriophage T2 tail fiber antigen is not essential for immunogenicity.
Area of Science:
- Immunology
- Virology
- Molecular Biology
Background:
- Bacteriophages are viruses that infect bacteria.
- Antigens are molecules capable of triggering an immune response.
- The immune system recognizes specific structures on antigens.
Purpose of the Study:
- To investigate if antigenic fragments of bacteriophage T2 retain their antibody-binding capacity.
- To determine if the complete tertiary structure of bacteriophage T2 tail fiber antigen is necessary for immunogenicity.
Main Methods:
- Macrophages were infected with bacteriophage T2.
- RNA was isolated from infected macrophages.
- Antigenic fragments were recovered from the RNA.
- The capacity of these fragments to bind to specific neutralizing antibodies against bacteriophage T2 was tested.
Main Results:
- Antigenic fragments of bacteriophage T2 recovered in RNA retained their ability to combine with specific neutralizing antibodies.
- The complete native tertiary structure of the tail fiber antigen of bacteriophage T2 was not required for its immunogenicity.
Conclusions:
- RNA derived from bacteriophage-infected cells can carry antigenic information.
- Partial structural integrity of antigens may be sufficient for antibody recognition and immune response initiation.