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: 1006298

Membrane definition

Symbiosome

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Peribacteroid membrane

Symbiosis leads to the formation of a new compartment in the plantcell when bacteria enter the plant cell by endocytosis, thesymbiosome. This compartment harbours the bacteroids surrounded by aperibacteroid membrane (PMB) originating from the plant plasmamembrane. The space between this membrane and the bacteroid membraneis called the peribacteroid space

  • Outside: Peribacterial space
  • Inside: Cytoplasm