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: 1013489

Membrane definition

Eukaryotic cell

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Nucleus outer membrane

The outer membrane of the nucleus is the membrane facing thecytoplasm. In mammals, the outer nuclear membrane is continuous inmany places with the rough endoplasmic reticulum and is dotted withribosomes

  • Outside: Cytoplasm
  • Inside: Inter membrane space