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Homologues of the bacterial cell division protein FtsZ are found in higher plants where they function as key components of the chloroplast division complex. In contrast to most bacteria that encode a single FtsZ protein, plants encode multiple proteins that group into two families, FtsZ1 and FtsZ2. Using new sequence data from a broad range photosynthetic organisms, we performed a series of analyses...
Ribonuclease P (RNase P), the ubiquitous enzyme required for 5' maturation of transfer RNA, is a ribonucleoprotein containing an essential RNA subunit. This RNA (P RNA) is the catalytic component of RNase P in Bacteria and some Archaea. A putative P RNA is encoded in the chloroplast genome of three algae: Cyanophora paradoxa, Porphyra purpurea and Nephroselmis olivacea. In no case, the P RNAs from...
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