Details

Autor(en) / Beteiligte

• Wexler, Margaret
• Bogsch, Erik G.
• Klösgen, Ralf Bernd
• Palmer, Tracy
• Robinson, Colin
• Berks, Ben C.

Titel

Targeting signals for a bacterial Sec-independent export system direct plant thylakoid import by the ΔpH pathway

Ist Teil von

• FEBS letters, 1998-07, Vol.431 (3), p.339-342

Ort / Verlag

England: Elsevier B.V

Erscheinungsjahr

1998

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• Preproteins targeted to the Sec-independent protein transport systems of plant thylakoids and of bacteria both have unusual transfer peptides bearing a consensus twin-arginine motif. Possible mechanistic similarity between the two Sec-independent transport pathways was investigated by assessing the ability of bacterial twin-arginine transfer peptides to direct thylakoid import. High efficiency import was observed. This process was demonstrated to occur specifically via the Sec-independent ΔpH pathway and to depend on an intact twin-arginine motif on the transfer peptide. These results provide strong evidence for the operation of mechanistically related Sec-independent protein transport pathways in chloroplasts and bacteria.