SCOP, CATH and DALI

SCOP

Structureal Classification Of Proteins

Hierarchy according to evolutionary origin and structural similarity

CATH

Class, Architecture, Topology, Homolgous superfamily

DALI/FSSP/DDD

Distance ALIgnment
Fold classification based on Structure-Structure alignment of Proteins
Dali Domain Dictionary

Correspondencce between SCOP and CATH hierarchies
SCOP
CATH
Class
Class
Architecture
 Fold
Topology
Homologous superfamily
Superfamily
Family
Sequence family
Domain
Domain