ECOD: An Evolutionary Classification of Protein Domains
Figure 3
Number of ECOD H-groups containing 1 or more SCOP superfamily (blue) or CATH homologous superfamily(red).
The majority contain only a single SCOP superfamily(88%) or CATH homologous superfamily (81%). The most merged (not shown) ECOD H-group is the Immunoglobulin-related domains, which contains 47 SCOP superfamilies and 81 CATH homologous superfamiles.