7070 hypothetical proteinThalassiosira pseudonana
GO:0005261 GO:0006812 GO:0016020 -
cation channel activity
Catalysis of the energy-independent passage of cations across a lipid bilayer down a concentration gradient.
The directed movement of cations, atoms or small molecules with a net positive charge, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
Double layer of lipid molecules that encloses all cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins.