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http://www.rcsb.org/pdb/search/smart.do?smartSearchSubtype_0=ChemSmilesQuery&searchType_0=Similar&similarity_0=0.8&polymericType_0=Any&smartComparator=and&target=Ligand&smiles_0=CC%28%3DO%29OC12COC1CC%28O%29C1%28C%29C2C%28OC%28%3DO%29c2ccccc2%29C2%28O%29CC%28OC%28%3DO%29C%28O%29C%28NC%28%3DO%29OC%28C%29%28C%29C%29c3ccccc3%29C%28C%29%3DC%28C%28O%29C1%3DO%29C2%28C%29C

It has been permanently removed as part of our announced shutdown on December 9th, 2020.

See the Legacy API Shutdown December 9 announcement for further details.


Legacy APIs

If you are using one of the legacy API endpoints, you will need to migrate to the new json-based APIs.

The new APIs provide more comprehensive search and fetch capabilities, see Web Services Overview.

Documentation for the new services and migration guides are available:

Data API tutorial
Search API tutorial
Data API migration guide
Search API migration guide