8.1 Introduction ↓ Organelle Signal Type Signal location length Mito chondron N-terminal Amphipathic helix 12-30 Chloroplast N-terminal Charge >25 Nucleus nternal Bas r partite 7-9 Figure 8.2 Proteins synthesized on free ribosomes in the cytosol are directed after their release to specific destinations by short signal motifs 消当Figure 8.2 Proteins synthesized on free ribosomes in the cytosol are directed after their release to specific destinations by short signal motifs. 8.1 Introduction