cdd version 3.21
62456 models in the default search set and indexed in Entrez
19638 models from Pfam v35
5137 models from COG v2
1009 models from SMART v6.0
12282 models from the Protein Clusters/NCBIFAM database
4488 models from the TIGRFAM v14.0 database
2142 models from the NCBIFAM database
19902 models curated by NCBI/CDD
4705 multi-model superfamilies indexed in Entrez