https://www.ncbi.nlm.nih.gov/Structure/pdb/5LEC
5LEC: Crystal structure of DARPin-DARPin rigid fusion, variant DDD_D12_12_D12_12_D12
DDD_D12_12_D12_12_D122-[3-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-PROPYLAMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
crystal structure