Transport of Proteins into Chloroplasts

  • Kenneth Keegstra
  • Gunnar von Heijne
Part of the Plant Gene Research book series (GENE)


Chloroplast biogenesis is a complex process involving the coordinate expression of both plastid and nuclear genes and the synthesis of pigments and lipids that derive from many biochemical pathways. Because of the limited coding capacity of the organelle genome, most chloroplast proteins are encoded in the nucleus and synthesized as precursors in the cytosol (Fig. 1) (cf. Rochaix, 1992; Herrmann et al, 1992). The precursor proteins are then imported into chloroplasts, where they are assembled into functional complexes. The sequence of events between translation of the precursor proteins on cytosolic ribosomes and assembly of the functional proteins has been the subject of considerable research in the past decade and will be the focus of this chapter.


Thylakoid Membrane Transit Peptide Envelope Membrane Chloroplast Envelope Thylakoid Lumen 
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-Verlag/Wien 1992

Authors and Affiliations

  • Kenneth Keegstra
    • 1
  • Gunnar von Heijne
    • 2
  1. 1.Department of BotanyUniversity of WisconsinMadisonUSA
  2. 2.Department of Molecular Biology, Center for Biotechnology, Karolinska InstituteHuddinge University HospitalHuddingeSweden

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