Figure 6From: Discovering structural motifs using a structural alphabet: Application to magnesium-binding sitesConversion of the 3D protein backbone into a 1D structural alphabet representation. The first 2 and the last 2 residues are assigned 'Z', meaning a letter cannot be assigned at these residues. The first valid assignment is 'd', at Val 3 and spanning residues 1 to 5. The next is assigned to Asp 4 and spans residues 2 to 6.Back to article page