IHSN is in 8 while the mode for PCN is 12. Thus, we find a shift of
4 degrees in the degree values between the Gaussian of PCN to the
Gaussian of IHSN. This means that in means 8 links are devoted to
control the interfaces and in means 4 more links control the neighborhood to mask the position of the interfaces and to plunge the
sub-network IHSN in the whole PCN network.
5.4 Degree
Distribution in Long
Range Network
For the Long Range Network, we take for all pairs of amino acids in
the same chain at positions i and j in the sequence with |i À j| > 7
(the distance in the sequence is greater or equal to 8) and such that
the amino acid i and j are also linked in PCN and thus we construct
the Long Range Network (Fig. 20). For the cholera toxin 1EEI we
find in Fig. 21 the distribution of degrees for LRN. The degree
distribution of the whole data set is not any more a Gaussian and
Fig. 18 Degree distribution of IHSN for the Cholera Toxin
Fig. 19 Degree distribution of IHSN for the whole Data Set
128
Claire Lesieur and Laurent Vuillon
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