porin activity

id: GO:0015288
name: porin activity
namespace: molecular_function
type: go
obsolete: False

Description: Catalysis of the transfer of substances, sized less than 1000 Da, from one side of the 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.

Child Functions

GO:0000269toxin export channel activity
GO:0015471nucleoside-specific channel forming porin activity
GO:0015473fimbrial usher porin activity
GO:0015474autotransporter activity
GO:0015478oligosaccharide transporting porin activity
GO:0015481maltose transporting porin activity
GO:0015483long-chain fatty acid transporting porin activity

Parent Functions

GO:0022829wide pore channel activity