The ABCD database: a repository for chemically defined antibodies

Nucleic Acids Res. 2020 Jan 8;48(D1):D261-D264. doi: 10.1093/nar/gkz714.


The ABCD (for AntiBodies Chemically Defined) database is a repository of sequenced antibodies, integrating curated information about the antibody and its antigen with cross-links to standardized databases of chemical and protein entities. It is freely available to the academic community, accessible through the ExPASy server ( The ABCD database aims at helping to improve reproducibility in academic research by providing a unique, unambiguous identifier associated to each antibody sequence. It also allows to determine rapidly if a sequenced antibody is available for a given antigen.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Antibodies / chemistry*
  • Antibodies / immunology
  • Antigens / chemistry
  • Antigens / immunology
  • Databases, Protein*


  • Antibodies
  • Antigens