CWM2 - Plant Editosome Database - CNCB-NGDC

Summary

Editing Factor: CWM2
Synonym: RRD2
Description: In addition to mutations in CELLULOSE SYNTHASE1 (CESA1) and CESA3, a forward genetic screen identified two independent defective genes encoding pentatricopeptide repeat (PPR)-like proteins (CELL WALL MAINTAINER1 [CWM1] and CWM2) as conferring tolerance to C17; Functional analysis revealed that mutations in these PPR proteins resulted in defective cytochrome c maturation and activation of mitochondrial retrograde signaling, as evidenced by the induction of an alternative oxidase; These mitochondrial perturbations increased tolerance to cell wall damage induced by cellulose deficiency; The C17 tolerance of cwm2 was partially lost upon depletion of the mitochondrial retrograde regulator ANAC017, demonstrating that ANAC017 links mitochondrial dysfunction with the cell wall
Protein Family: PPR
Subclass: NA
Physical Interaction: NA
Construct Structure: NA
Gene ID & Species: AT1G32415 (Arabidopsis thaliana)
Edited Gene(s): ccmC
Editing Type(s): C-to-U (3)
Publication(s): [1] Mitochondrial Defects Confer Tolerance against Cellulose Deficiency., The Plant cell, 2016. [PMID=27543091]

Editing Details

Species Gene ID Organelle Edited Gene Position Region Nuclear Genome Organelle Genome Other Position Region Other Position Editing Type Codon Amino Acid Molecular Effect Experiment Details
Arabidopsis thaliana AT1G32415 Mitochondrion ccmC 575 CDS Arabidopsis Genome Initiative NA NA NA C-to-U CCC=>CUC P=>L Recoding
Experiment Details
Genotype (Ecotype) Allele Treatment Treatment Detail Mutant Type Phenotype Tissue Development Stage Detection Method Editing Frequency Editing Extent Mutant Effect PMID
Col-0WTControlControlControlNormalRoot5-day-oldRT-PCR and direct sequencing93.33%HighNone27543091
SALK_020569Ccwm2-1T-DNA insertionThe cwm2-1 locus was mapped into the 171.8-kb region between SSLP markers CH1_11687 and CH1_11589NAHigher respiration than the wild type;C17 toleranceRoot5-day-oldRT-PCR and direct sequencing28.57%LowDecreased27543091
SALK_027874cwm2-2T-DNA insertionThe cwm2-2 locus was mapped into the 171.8-kb region between SSLP markers CH1_11687 and CH1_11589KnockoutHigher respiration than the wild type;C17 toleranceRoot5-day-oldRT-PCR and direct sequencing39.39%LowDecreased27543091
Last update: Feb 2026 (version 2.0)