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[The antigen structure of human serum transferrin]
Folia Haematologica (Leipzig, Germany : 1928)
|January 1, 1981
Summary
Researchers enzymatically fragmented the transferrin molecule, identifying 4 distinct fragments and 6 antigen determinants. This study provides a foundational model of the transferrin molecule and its antigen structure.
Area of Science:
- Biochemistry
- Immunology
- Molecular Biology
Context:
- Transferrin is a key iron-transporting protein.
- Understanding its structure is crucial for biological and medical research.
Purpose:
- To enzymatically fragment the transferrin molecule.
- To characterize the antigen structure of the resulting fragments immunochemically.
- To develop a model of the transferrin molecule based on experimental findings.
Summary:
- Enzymatic fragmentation using papain, pepsin, ficin, and bromelin yielded four defined transferrin fragments.
- Immunochemical analysis (immunoelectrophoresis, immunodiffusion) revealed three distinct antigen groups (A, B, C).
- Human transferrin possesses at least six antigen determinants (a1, b1-b4, c1), including an internal determinant (bi) in bromelin fragment II.
Impact:
- Provides a detailed immunochemical map of human transferrin structure.
- Identifies specific antigen determinants within transferrin fragments.
- Contributes to a refined molecular model of transferrin.