I got the same result using Chrome. Input "4D21" only will say: Error! The RCSB web servers returned an unexpected error. It has been logged and will be reviewed by the PDB team. 4CS4,4CIW works fine.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 2 years ago
Resolution: --- → INVALID
Component: Untriaged → General
Product: Firefox → Invalid Bugs
Version: 51 Branch → unspecified
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