Elsevier Inc. cardiolipin ADP ATP respiratory complex IV ATP ---> ADP motor PAM beta-barrel precursor ---> inserted beta-barrel TIM23 complex ---- TOM complex carrier precursor ---> inserted carrier beta-barrel precursor carrier precursor presequence precursor cysteine-rich precursor alpha-helical precursor cysteine-rich precursor ---> oxidized, folded precursor MINOS system ---- TOM complex TOM complex MINOS system ---- SAM complex SAM complex small Tim proteins SAM complex ---- TOM complex IM peptidases inserted beta-barrel MIA system TIM23 complex Gfer ---> MIA system Gfer ---- MIA system MIA system ---> oxidized, folded precursor presequence precursor ---> inserted precursor IM peptidases ---> inserted precursor presequence precursor ---> released precursor oxidized, folded precursor inserted precursor Oxa1l mt-precursor ---> inserted precursor mt-precursor inserted alpha-helical alpha-helical precursor ---> inserted alpha-helical inserted carrier Gfer Gfer ---> respiratory complex IV TIM22 complex intermembrane space assembly pathway of mitochondrial protein import alpha-helical insertion pathway of mitochondrial protein import presequence pathway of mitochondrial protein import carrier pathway of mitochondrial protein import beta-barrel pathway of mitochondrial protein import electron transport chain pathway matrix peptidases ---> released precursor released precursor matrix peptidases motor PAM ---- TIM23 complex ATP ---- motor PAM cardiolipin ---- motor PAM cardiolipin ---- MINOS system MINOS system MIM system