Fig. 2.

Secondary structures of the variable segment (VS) part in individual LRRs in the known structures of five SLRPs. ^aThe position number of LRR units. ^bThe repeating unit length of LRRs. ^cShaded areas indicate the secondary structure elements; light blue indicate polyproline II helix conformations, yellow b-turns in which the first residue and the last residues show residue i + 1 and i + 2, respectively, green α-helices in which the first residue and the last residues show residues N_c + 1 and C_c− 1, respectively; N_c is the first helical residue and C_c is the last helical residue. ^d“S” is Bacterial LRR and “T” is Typical LRR. Bos taurus biglycan (PDB: ID: 2FT3); Bos taurus decorin (PDB ID: 1XKU); Human fibromodulin (PDB ID: 5MX0); Human osteomodulin (PDB ID: 5YQ5); Human chondradherin (PDB ID: 5LFN)