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. 2002 Sep 1;30(17):3894–3900. doi: 10.1093/nar/gkf493

Table 2. Structural characteristics of disease mutations, nsSNPs and amino acid substitutions between species.

  Disease mutations (%) nsSNPs (%) Substitutions between species (%)
At a functional site 4 0 0
Closer than 4 Å to a critical site 7 2 1
Closer than 3 Å to a critical site 2 1 0
Closer than 4 Å to a ligand 11 8 4
Closer than 3 Å to a ligand 4 3 0.6
Normalised accessibility (ACC) ≤ 5% 41 23 17
ACC ≤ 5% and change in hydrophobic propensity >0.75 21 6 2
ACC ≤ 5% and change in volume >60 Å3 (overpacking) 6 2 0
ACC ≤ 5% and change in volume >–60 Å3 (cavity creation) 2 2 0.6
ACC ≤ 5% and change in electrostatic charge 12 4 1
ACC < 25% 67 45 34
ACC < 25% and absolute change in hydrophobic propensity >0.75 33 14 5
ACC < 25% and change in volume >60 Å3 (overpacking) 9 4 1
ACC < 25% and change in volume >–60 Å3 (cavity) 5 4 1
ACC < 25% and change in electrostatic charge 22 9 4
Normalised crystallographic B-factor <–0.5 44 29 24
Loss of a hydrogen bond 13 8 5
Loss of a disulphide bridge 1.3 0.6 0
Proline in α-helix 3 1.2 0.4
Substitution of Gly with torsion angles forbidden for other amino acids 1.2 0.9 0.4