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

Database status

Database release: v3.2
Release date: 2024-09-22
Entries: 9369
Topology data: 640153
Alpha helical proteins: 9095
Beta barrel proteins: 274
PubMed links: 42833
PDB links: 30777
Visitors: 993906

TOPDB statistics of release v3.2

Counts by experimental types

Experimental type # Entries # Topology data
Fusion 1209 4732
PostTransMod 1446 5961
Protease 98 335
Immunolocalisation 172 544
Chemical_modification 214 1667
Structure 7388 626406
Other 342 508
Total 9369 640153

Number of proteins by structural types

Structural type # Entries
Alpha Bitopic 3618
Alpha Polytopic 5477
Beta Polytopic 274
Total 9369

Number of cross references

Database # References
PDB 30777
Pubmed 42833
UniProt 6345

Distribution of transmembrane segment's number

Distribution of evidence types