Old and new pathways of protein export in chloroplasts and bacteria

Settles, A. M., Martienssen, R. (December 1998) Old and new pathways of protein export in chloroplasts and bacteria. Trends in Cell Biology, 8 (12). pp. 494-501. ISSN 0962-8924

URL: http://www.ncbi.nlm.nih.gov/pubmed/9861672
DOI: 10.1016/s0962-8924(98)01387-7


Targeting of chloroplast proteins to the thylakoid membrane is analogous to bacterial secretion, and much of what we know has been learned from secretory mechanisms in Escherichia coli. However, chloroplasts also use a Delta pH-dependent pathway to target thylakoid proteins, at least some of which are folded before transport Previously, this pathway seemed to have no cognate in bacteria, but recent results have shown that the HCF106 gene in maize encodes a component of this pathway and has bacterial homologues. This Delta pH-dependent pathway might be an ancient conserved mechanism for protein translocation that evolved before the endosymbiotic origin of plastids and mitochondria.

Item Type: Paper
Uncontrolled Keywords: signal-recognition particle escherichia-coli thylakoid membrane arabidopsis-thaliana molecular-cloning pea-chloroplasts photosystem-ii in-vitro translocation transport
Subjects: organism description > plant > maize
organism description > bacteria
organism description > plant
organs, tissues, organelles, cell types and functions > tissues types and functions > transport > protein transport
CSHL Authors:
Communities: CSHL labs > Martienssen lab
Depositing User: Matt Covey
Date: December 1998
Date Deposited: 13 Dec 2013 15:17
Last Modified: 13 Dec 2013 15:17
Related URLs:
URI: https://repository.cshl.edu/id/eprint/29001

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