Channel-forming protein essential for import of protein precursors into mitochondria.
Molecular Function
Porin activity; Protein transmembrane transporter activity
Subcellular Location
Mitochondrion outer membrane; Multi-pass membrane protein
Structure
Forms part of the preprotein translocase complex of the outer mitochondrial membrane (TOM complex) which consists of at least 7 different proteins (TOMM5, TOMM6, TOMM7, TOMM20, TOMM22, TOMM40 and TOMM70). Interacts with mitochondrial targeting sequences.