cdd version 3.22 - preliminary preview, subject to change 71212 models in the default search set 24073 models from Pfam v37.2 5240 models from COG v4 1009 models from SMART v6.0 3101 models from the Entrez protein clusters database 4488 models from the TIGRFAM v14.0 database 11822 models from the NCBIFAM database 21479 models curated by NCBI/CDD 4705 multi-model superfamilies