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: 1016433

Membrane definition

Eukaryotic cell

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Chloroplast thylakoid membrane

The thylakoid membranes of a chloroplast is an internal system ofinterconnected membranes, that carry out the light reactions ofphotosynthesis. They are arranged into stacked and unstacked regionscalled grana and stroma thylakoids, respectively, that aredifferentially enriched in photosystem I and II complexes. Althoughextensive, the thylakoid network in an individual chloroplast isthought to comprise a single lumenal compartment

  • Outside: Thylakoid space
  • Inside: Stroma