The Structural Antibody Database.

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


Search Database

CDR Search

Therapeutic Abs

Sequence Search


Selection Methods

We provide a selection of methods 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.
Sequence SearchSearch for structures with similar sequences to a query
ABangleExplore the VH/VL orientation angles


Below you can find the basic statistics of our database:

Structures with antibody: 3076
Structures with at least one paired VH/VL: 2635
Number of FV regions: 5865
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