Searches for protein-ligand complexes in the PDB with associated binding affinity from BindingDB
and BindingMOAD (http://www.bindingmoad.org/).
The minimum or maximum value for the binding affinity range may be left unspecified in which case only the provided end of
the range is used. The binding affinity type can be specified from the drop down list, and the default type is "Ki".
Binding constants IC50, EC50, Ki, and Kd are in nM, thermodynamic data ΔG, ΔH, -TΔS in kJ/mol,
and Ka in M-1.
Enter "Between 1 and 5" and select "Affinity Type EC50". The search results will be PDB entries of
protein-ligand complexes with an EC50 in the 1 - 5 nm (inclusive) range.
For example the Thyroid Hormone Receptor has an EC50 of 2 nM for 3,5,3'TRIIODOTHYRONINE (T3), PDB ID 3GWS.
Leave lower bound and upper bound unspecified, and the results will be all PDB entries that have binding
data for the selected binding affinity type.
The RCSB PDB (
citation ) is managed by two members of the Research Collaboratory for Structural Bioinformatics:
RCSB PDB is a member of the
The RCSB PDB is funded by a grant from the
National Science Foundation, the
National Institutes of Health, and the
US Department of Energy.