Nucleic Acids Research, Vol 24, Issue 7 1252-1259, Copyright © 1996 by Oxford University Press
ES Haas, DW Armbruster, BM Vucson, CJ Daniels and JW Brown
Although the structure of the catalytic RNA component of ribonuclease P has
been well characterized in Bacteria, it has been little studied in other
organisms, such as the Archaea. We have determined the sequences encoding
RNase P RNA in eight euryarchaeal species: Halococcus morrhuae,
Natronobacterium gregoryi, Halobacterium cutirubrum, Halobacteriurn
trapanicum, Methanobacterium thermoautotrophicum strains deltaH and
Marburg, Methanothermus fervidus and Thermococcus celer strain AL-1. On the
basis of these and previously available sequences from Sulfolobus
acidocaldarius, Haloferax volcanii and Methanosarcina barkeri the secondary
structure of RNase P RNA in Archaea has been analyzed by phylogenetic
comparative analysis. The archaeal RNAs are similar in both primary and
secondary structure to bacterial RNase P RNAs, but unlike their bacterial
counterparts these archaeal RNase P RNAs are not by themselves
catalytically proficient in vitro.
ARTICLES
Comparative analysis of ribonuclease P RNA structure in Archaea
Department of Microbiology, North Carolina State University, Raleigh 27695, USA.
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