A GTPase gate for protein import into chloroplasts
Author(s)
Schnell, Danny
Date issued
2002
In
Nature Structural Biology
Vol
2
No
9
From page
81
To page
83
Subjects
OUTER ENVELOPE MACHINERY BINDING TRANSLOCATION COMPONENTS RECEPTOR PREPROTEINS APPARATUS
Abstract
Protein import into chloroplasts is regulated by the binding and hydrolysis of GTP at two homologous GTPases, Toc34 and Toc159. The crystal structure of the Toc34 GTP-binding domain suggests that GTP-regulated dimerization of the Toc GTPase domains controls the targeting and translocation of preproteins at the chloroplast envelope.
Publication type
journal article