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XB-ART-15059
Eur J Biochem 1998 Apr 01;2531:154-60.
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Processing of vertebrate box C/D small nucleolar RNAs in plant cells.

Leader DJ , Clark GP , Boag J , Watters JA , Simpson CG , Watkins NJ , Maxwell ES , Brown JW .


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The recent isolation of a number of plant box C/D small nucleolar (sno)RNAs demonstrates the conservation in plants of sequence and structural elements of processed box C/D snoRNAs. Boxes C and D, and terminal inverted repeats are known to be essential for accumulation and processing in vertebrates and yeast. Processing of vertebrate box C/D snoRNAs was examined by expression of various mouse hsc70 intron 5-U14 constructs in tobacco protoplasts. Full-length U14 and internally deleted U14 accumulated in the plant cells. Human U3 and U8 fragments, consistent with processing to internal box C/C' sequences, also accumulated in the plant cells. The similarity of processing behaviour of the vertebrate box C/D constructs in tobacco protoplasts and Xenopus oocytes suggests the mechanism of processing, involving recognition and association of proteins, is conserved in plants.

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Species referenced: Xenopus
Genes referenced: hspa8