Protein Import Into Chloroplasts: Who, When, and How?

  • Ute C. Vothknecht
  • Jürgen Soll
Part of the Advances in Photosynthesis and Respiration book series (AIPH, volume 23)

Chloroplasts are the characteristic organelles of photosynthetic algae and plants. They originated from a cyanobac terial ancestor that was engulfed by a eukaryotic host cell and subsequently transformed into an organelle. As a result of this heritage, chloroplasts are surrounded by a double membrane, the outer and inner envelope. Plastid proteins that are encoded by the nucleus and translated on cytosolic ribosomes must be transported into the organelle across both of these membranes. This is achieved by two hetero-oligomeric protein complexes within the outer and inner envelope, the Toc and the Tic translocons. Both translocons are composed of a small number of proteins that were inherited from the cyanobacterial ancestor, as well as additional proteins.


Thylakoid Membrane Protein Translocation Signal Recognition Particle Envelope Membrane Outer Envelope 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer 2007

Authors and Affiliations

  • Ute C. Vothknecht
    • 1
  • Jürgen Soll
    • 1
  1. 1.Department of BiologyBotanisches Institut der LMU MünchenGermany

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