Part I: Crossing bacterial membranes.<br>Chapter 1: Cotranslational Protein Targeting in Escherichia Coli.<br>Chapter 2: Sec Protein Conducting Channel and SecA.<br>Chapter 3: Targeting of Proteins by the Twin-arginine Translocation (Tat) System in Bacteria and Chloroplasts.<br>Chapter 4: YidC- A Protein with Multiple Functions in Bacterial Membrane Biogenesis. <br>Chapter 5: Disulfide Bond Formation Enzymes.<br>Chapter 6: The Identification of the YaeT Complex and its Role in the Assembly of Bacterial Outer Membrane â-barrel Proteins.<br>Chapter 7: The Function of the ABC transporter LolCDE in Protein Transport to the Outer Membrane of E. coli.<br><br>Part II: Crossing endoplasmic reticulum membranes.<br>Chapter 8: The Signal Recognition Particle and Its Receptor in ER Protein Targeting.<br>Chapter 9: The Translocation Apparatus of The Endoplasmic Reticulum.<br>Chapter 10: The Role of Bip/Kar2p in the Translocation of Proteins Across the ER Membrane.<br>Chapter 11: Calnexin, Calreticulin and their Associated Oxidoreductase ERp57.<br><br>Part III: Crossing mitochondrial membranes.<br>Chapter 12: TOM and SAM Machineries in Mitochondrial Protein Import and Outer Membrane Biogenesis.<br>Chapter 13: The Role of the Mia40-Erv1 Disulfide Relay System in Import and Folding of Proteins of the Intermembrane Space of Mitochondria.<br>Chapter 14: The Function of TIM22 in the Insertion of Inner Membrane Proteins in Mitochondria.<br>Chapter 15: The Role of the TIM23 Complex and its Associated Motor Complex (PAM) in Mitochondrial Protein Import.<br><br>Part IV: Crossing chloroplast membranes.<br>Chapter 16: The Toc Machinery of the Protein Import Apparatus of Chloroplasts.<br>Chapter 17: The Role of the TIC Machinery in Chloroplast Protein Import.<br>Chapter 18: The Sec and Tat Protein Translocation Pathways in Chloroplasts.<br>Chapter 19: Chloroplast SRP/FtsY and Alb3 in Protein Integration into the Thylakoid Membrane.<br><br>Part V: Crossing peroxisomal membranes.<br>Chapter 20: The Role of Shuttling Targeting Signal Receptors and Heat-shock Proteins in Peroxisomal Matrix Protein Import.<br>Chapter 21: Function of the Ubiquitin-conjugating Enzyme Pex4p and the AAA Peroxin Complex Pex1p/Pex6p in Peroxisomal Matrix Protein Transport.