porin activity

Term ID

GO:0015288

Synonyms

• outer membrane exporter porin
• porin

Definition

Enables the transfer of substances, sized less than 1000 Da, from one side of a membrane to the other. The transmembrane portions of porins consist exclusively of beta-strands which form a beta-barrel. They are found in the outer membranes of Gram-negative bacteria, mitochondria, plastids and possibly acid-fast Gram-positive bacteria. (2)

References

• Wikipedia:Porin_(protein)

Ontology

GO: Molecular Function    QuickGO    AmiGO