Topology Data Bank of Transmembrane Proteins
Topology, Structure and Prediction.

Database status

Database release: v3.1
Release date: 2024-01-29
Entries: 9226
Topology data: 572478
Alpha helical proteins: 8897
Beta barrel proteins: 329
PubMed links: 39605
PDB links: 27249
Visitors: 967183

TOPDB statistics of release v3.1

Counts by experimental types

Experimental type # Entries # Topology data
Fusion 1207 4724
PostTransMod 1453 5938
Protease 97 334
Immunolocalisation 171 543
Chemical_modification 213 1677
Structure 7198 558761
Other 338 501
Total 9226 572478

Number of proteins by structural types

Structural type # Entries
Alpha Bitopic 3349
Alpha Polytopic 5548
Beta Polytopic 329
Total 9226

Number of cross references

Database # References
PDB 27249
Pubmed 39605
UniProt 6345

Distribution of transmembrane segment's number

Distribution of evidence types