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

Database status

Database release: v3.3
Release date: 2025-01-12
Entries: 9588
Topology data: 685414
Alpha helical proteins: 9310
Beta barrel proteins: 279
PubMed links: 43320
PDB links: 31246
Visitors: 1005968

Membrane definition

Eukaryotic cell

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Nucleus inner membrane

The inner membrane of the nucleus is the membrane which separates thenuclear matrix from the intermembrane space. In mammals, the innernuclear membrane is associated with heterochromatin and the nuclearlamina

  • Outside: Nucleoplasm
  • Inside: Inter membrane space