Ki database is free resource supported by NIMH, you will be able to download a zip file which contains the whole data set in a plain text file. kidb071003.zip contains more than 46,000 records. This file will be refreshed regularly, at the end of the file name we added the generation date in order you to know which version you have. Each field is tab-separated and text fields are delimited by ". This is the data structure that you will find in the text file: record number   receptor name   test ligand name   SMILES canonical SMILES code CAS number You may use this number to search NCBI- PubChem Substance NSC number You may use this number to search NCBI- PubChem Compound Ki note this field has a greater than symbol ">". You may find a null value Ki value this value is expressed in nM, for some values you will see more than 2 decimals, this is the result of the conversion from pKi to Ki hot Ligand you may find "undefined" for some records species you may find "undefined" for some records source / tissue you may find "undefined" for some records reference some values were generated by PDSP link to PubMed some values generated by PDSP are not published. You may find a null value If you have any questions please contact us by email Dr. Bryan Roth or Estela Lopez.				Download Ki DB