Amino acid network within protein

The information regarding the structure of a single protein is encoded in the network of interacting amino acids which are mainly of two types-hydrophobic and hydrophilic. In the present study, we have analysed hydrophobic and hydrophilic amino acids network separately. The results show that both the networks have the `small world' property. The degree distributions for long-range interactions of both the networks have the form of power law with exponential cut-off. Hydrophobic networks have larger average degrees of nodes than hydrophilic networks.