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Literature DB >> 19054741

A bifunctional archaeal protein that is a component of 30S ribosomal subunits and interacts with C/D box small RNAs.

Andrea Ciammaruconi¹, Stefania Gorini, Paola Londei.

Abstract

We have identified a novel archaeal protein that apparently plays two distinct roles in ribosome metabolism. It is a polypeptide of about 18 kDa (termed Rbp18) that binds free cytosolic C/D box sRNAs in vivo and in vitro and behaves as a structural ribosomal protein, specifically a component of the 30S ribosomal subunit. As Rbp18 is selectively present in Crenarcheota and highly thermophilic Euryarchaeota, we propose that it serves to protect C/D box sRNAs from degradation and perhaps to stabilize thermophilic 30S subunits.

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Year: 2008 PMID： 19054741 PMCID： PMC2685591 DOI： 10.1155/2008/472786

Source DB: PubMed Journal: Archaea Impact factor: 3.273

16 in total

1. Placement of protein and RNA structures into a 5 A-resolution map of the 50S ribosomal subunit.

Authors: N Ban; P Nissen; J Hansen; M Capel; P B Moore; T A Steitz
Journal: Nature Date: 1999-08-26 Impact factor: 49.962

2. Homologs of small nucleolar RNAs in Archaea.

Authors: A D Omer; T M Lowe; A G Russell; H Ebhardt; S R Eddy; P P Dennis
Journal: Science Date: 2000-04-21 Impact factor: 47.728

3. Archaeal ribosomal protein L7 is a functional homolog of the eukaryotic 15.5kD/Snu13p snoRNP core protein.

Authors: Jeffrey F Kuhn; Elizabeth J Tran; E Stuart Maxwell
Journal: Nucleic Acids Res Date: 2002-02-15 Impact factor: 16.971

Review 4. Small nucleolar RNAs: an abundant group of noncoding RNAs with diverse cellular functions.

Authors: Tamás Kiss
Journal: Cell Date: 2002-04-19 Impact factor: 41.582

Review 5. The expanding snoRNA world.

Authors: Jean Pierre Bachellerie; Jérôme Cavaillé; Alexander Hüttenhofer
Journal: Biochimie Date: 2002-08 Impact factor: 4.079

6. RNA-guided nucleotide modification of ribosomal and non-ribosomal RNAs in Archaea.

Authors: Sonia M Ziesche; Arina D Omer; Patrick P Dennis
Journal: Mol Microbiol Date: 2004-11 Impact factor: 3.501

7. Sequence and structural elements of methylation guide snoRNAs essential for site-specific ribose methylation of pre-rRNA.

Authors: Z Kiss-László; Y Henry; T Kiss
Journal: EMBO J Date: 1998-02-02 Impact factor: 11.598

A bifunctional archaeal protein that is a component of 30S ribosomal subunits and interacts with C/D box small RNAs.

1. Placement of protein and RNA structures into a 5 A-resolution map of the 50S ribosomal subunit.

2. Homologs of small nucleolar RNAs in Archaea.

3. Archaeal ribosomal protein L7 is a functional homolog of the eukaryotic 15.5kD/Snu13p snoRNP core protein.

Review 4. Small nucleolar RNAs: an abundant group of noncoding RNAs with diverse cellular functions.

Review 5. The expanding snoRNA world.

6. RNA-guided nucleotide modification of ribosomal and non-ribosomal RNAs in Archaea.

7. Sequence and structural elements of methylation guide snoRNAs essential for site-specific ribose methylation of pre-rRNA.

8. Small nucleolar RNAs direct site-specific synthesis of pseudouridine in ribosomal RNA.

9. Site-specific pseudouridine formation in preribosomal RNA is guided by small nucleolar RNAs.

10. In vitro reconstitution and activity of a C/D box methylation guide ribonucleoprotein complex.

Review 1. Life in hot acid: pathway analyses in extremely thermoacidophilic archaea.

Review 2. Ribonucleoprotein multimers and their functions.

3. Entrapment of DNA in an intersubunit tunnel system of a single-stranded DNA-binding protein.