Article
A point mutation in the pentatricopeptide repeat motif of the AtECB2 protein causes delayed chloroplast development.
Journal of integrative plant biology - 1 Apr 2011
Cao Zhi-Lin, Yu Qing-Bo, Sun Yue, Lu Yang, Cui Yong-Lan, Yang Zhong-Nan
Abstract excerpt
AtECB2 encodes a pentatricopeptide repeat (PPR) protein that regulates the editing of the plastid genes accD and ndhF. The ecb2-1 knockout shows an albino phenotype and is seedling lethal. In this study, we isolated an allelic mutant of the AtECB2 gene, ecb2-2, which showed delayed greening phenotype but could complete their life cycle. In this mutant, the Thr(500) is converted to Ile(500) in the 13(th) PPR motif...
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