Related Experiment Video
Updated: Dec 27, 2025

mRNA Interactome Capture from Plant Protoplasts
Published on: July 28, 2017
Arabidopsis RanBP2-Type Zinc Finger Proteins Related to Chloroplast RNA Editing Factor OZ1
Andrew B Gipson1, Ludovic Giloteaux1, Maureen R Hanson1
1Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA.
Abstract:
OZ1, an RNA editing factor that controls the editing of 14 cytidine targets in Arabidopsis chloroplasts, contains two RanBP2-type zinc finger (Znf) domains. The RanBP2 Znf is a C4-type member of the broader zinc finger family with unique functions and an unusually diverse distribution in plants. The domain can mediate interactions with proteins or RNA and appears in protein types such as proteases, RNA editing factors, and chromatin modifiers; however, few characterized Arabidopsis proteins containing RanBP2 Znfs have been studied specifically with the domain in mind. In humans, RanBP2 Znf-containing proteins are involved in RNA splicing, transport, or transcription initiation. We present a phylogenetic overview of Arabidopsis RanBP2 Znf proteins and the functional niches that these proteins occupy in plants. OZ1 and its four-member family represent a branch of this family with major impact on the RNA biology of chloroplasts and mitochondria in Arabidopsis. We discuss what is known about other plant proteins carrying the RanBP2 Znf domain and point out how phylogenetic information can provide clues to functions of uncharacterized Znf proteins.
More Related Videos
Related Concept Videos
RNA Editing
Riboswitches
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
Cell Signaling in Plants
Protein Transport to the Inner Chloroplast Membrane
piRNA - Piwi-interacting RNAs
Conservation of Protein Domains Over Different Proteins
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...

