SP-NR database (primary databases)
This database contains the weekly release versions of SWISS-PROT and TrEMBL.
These releases immediately reflect the improvements which are continuously being done to SWISS-PROT and TrEMBL.
It is recommended to use SP-NR instead of SWISS-PROT/TrEMBL releases plus updates as they also reflect merges between entries and deletions of entries.