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Comparative analysis of ribonuclease P RNA structure in Archaea.


ABSTRACT: 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.

SUBMITTER: Haas ES 

PROVIDER: S-EPMC145784 | biostudies-other | 1996 Apr

REPOSITORIES: biostudies-other

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Comparative analysis of ribonuclease P RNA structure in Archaea.

Haas E S ES   Armbruster D W DW   Vucson B M BM   Daniels C J CJ   Brown J W JW  

Nucleic acids research 19960401 7


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 b  ...[more]

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