A Novel Prokaryote-Type ECF/ABC Transporter Module in Chloroplast Metal Homeostasis.

ABSTRACT: During evolution, chloroplasts, which originated by endosymbiosis of a prokaryotic ancestor of today's cyanobacteria with a eukaryotic host cell, were established as the site for photosynthesis. Therefore, chloroplast organelles are loaded with transition metals including iron, copper, and manganese, which are essential for photosynthetic electron transport due to their redox capacity. Although transport, storage, and cofactor-assembly of metal ions in chloroplasts are tightly controlled and crucial throughout plant growth and development, knowledge on the molecular nature of chloroplast metal-transport proteins is still fragmentary. Here, we characterized the soluble, ATP-binding ABC-transporter subunits ABCI10 and ABCI11 in Arabidopsis thaliana, which show similarities to componen

SUBMITTER: Voith von Voithenberg L 

PROVIDER: S-EPMC6828968 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature