biostudies-literatureUnknown15Goetze TA<h4>Background</h4>Metabolite, ion and protein translocation into chloroplasts occurs across two membranes, the inner and the outer envelope. Solute and metabolite channels fulfill very important functions in integrating the organelles into the metabolic network of the cell. However so far only a few have been identified. Here we describe the identification and the characterization of the outer envelope protein of 23 kDa, Oep23 from garden pea.<h4>Results</h4>Oep23 is found in the entire plant lineage from green algae to flowering plants. It is expressed in all organs and developmental states tested so far. The reconstituted recombinant protein Oep23 from pea forms a high conductance ion channel with a maximal conductance in the fully open state of 466 ± 14pS at a holding potential of +100BMC plant biology47https://www.ebi.ac.uk/biostudies/studies/S-EPMC4331141biostudies-literatureOep23 forms an ion channel in the chloroplast outer envelope.PMC4331141Jeshen IGoetze TAGrahl SSoll JBolter BPatil MfalseOep23 forms an ion channel in the chloroplast outer envelope.<h4>Background</h4>Metabolite, ion and protein translocation into chloroplasts occurs across two membranes, the inner and the outer envelope. Solute and metabolite channels fulfill very important functions in integrating the organelles into the metabolic network of the cell. However so far only a few have been identified. Here we describe the identification and the characterization of the outer envelope protein of 23 kDa, Oep23 from garden pea.<h4>Results</h4>Oep23 is found in the entire plant lineage from green algae to flowering plants. It is expressed in all organs and developmental states tested so far. The reconstituted recombinant protein Oep23 from pea forms a high conductance ion channel with a maximal conductance in the fully open state of 466 ± 14pS at a holding potential of +1002015-01-01T00:00:00Z2015 Feb2026-06-09T06:34:59.271Z2026-06-09T03:12:18.312ZS-EPMC43311412584963410.1186/s12870-015-0445-1