Explore ORENZA, a relationnal database of ORphan ENZyme Activities
Orphan enzyme activities are reported activities (EC numbers) that don't have an associated amino acid sequence in the major public databases (see about page for more details).
Click on the buttons below to explore the ORENZA database tables by theme:
Orenza database version: 2025-07
This version is based on data from:
Explorenz: 2025.05,
Brenda: Release 2025.1 (May 2025),
Kegg: Release 115.0, July 1, 2025,
UniprotKB/Swiss-Prot: Release 2025_03 of 18-Jun-2025,
UniprotKB/TrEMBL: Release 2025_03 of 18-Jun-2025,
PDB: Downloaded on 2025-07
This version is based on data from:
Explorenz: 2025.05,
Brenda: Release 2025.1 (May 2025),
Kegg: Release 115.0, July 1, 2025,
UniprotKB/Swiss-Prot: Release 2025_03 of 18-Jun-2025,
UniprotKB/TrEMBL: Release 2025_03 of 18-Jun-2025,
PDB: Downloaded on 2025-07