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The RNA-binding proteins CSP41a and CSP41b may regulate transcription and translation of chloroplast-encoded RNAs in Arabidopsis

BOLLENBACH, THOMAS J.; Sharwood, Robert; Gutierrez, Ryan; Lerbs-Mache, Silva; Stern, David B


The chloroplast protein CSP41a both binds and cleaves RNA, particularly in stem-loops, and has been found associated with ribosomes. A related protein, CSP41b, co-purifies with CSP41a, ribosomes, and the plastid-encoded RNA polymerase. Here we show that Arabidopsis CSP41a and CSP41b interact in vivo, and that a csp41b null mutant becomes depleted of CSP41a in mature leaves, correlating with a pale green phenotype and reduced accumulation of the ATP synthase and cytochrome b 6 /f complexes. RNA...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: Plant Molecular Biology
DOI: 10.1007/s11103-008-9436-z


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