Immune System Modelling and Simulation
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7. The fi nal outcome is an increase in affi nity with important
positive consequences, among which is the enlargement of the
repertoire of the individual, and the second positive selection of
the memory cells for not only the present engagement but also
for the future.
1.41 Competition In the Minefi eld of Cross-Reactions
This, as it appears now, is a dynamic society of cells and
clones, motivated by competition for antigens and for
signalling molecules. Special receptors crave to bind them
via the noncovalent forces that energise all protein–protein
interactions. At stake is survival; the competitors belong to the
same clone or, with more dramatic effects, to different clones
with different histories, ...