The Structural Antibody Database.

Collecting, curating and presenting the antibody structural data from the PDB...


Search Database

CDR Search

CDR Clustering

Template Search



We provide a selection of tools allowing researchers to study the structures of antibodies:

Database searchSearch antibody structures by complex, name, organism etc.
CDR SearchSearch CDR structures by complex, name, organism etc.
ABangleExplore the VH/VL orientation angles
Antibody-Antigen dockingDownload software for decoy re-scoring
CDR contact predictionPredict CDR residues to be in contact


Below you can find the fundamental statistics from our database:

Structures with antibody: 2439
Structures with at least one paired VH/VL: 2123
Number of FV regions: 4593
Structures with defined affinities: 211

CDR clusters

UPGMA clustering of the Chothia CDRs, allowing elements in the cluster to be at most 1.5Å apart.

CDR typeNumber of available lengthsNon-singleton clusters
H1 12 107
H2 5 96
H3 25 257
L1 11 58
L2 3 82
L3 9 99