1OQK

Structure of Mth11: A homologue of human RNase P protein Rpp29


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 35 
  • Conformers Submitted: 22 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of Mth11/Mth Rpp29, an essential protein subunit of archaeal and eukaryotic RNase P.

Boomershine, W.P.McElroy, C.A.Tsai, H.Y.Wilson, R.C.Gopalan, V.Foster, M.P.

(2003) Proc.Natl.Acad.Sci.Usa 100: 15398-15403

  • DOI: 10.1073/pnas.2535887100

  • PubMed Abstract: 
  • We have determined the solution structure of Mth11 (Mth Rpp29), an essential subunit of the RNase P enzyme from the archaebacterium Methanothermobacter thermoautotrophicus (Mth). RNase P is a ubiquitous ribonucleoprotein enzyme primarily responsible ...

    We have determined the solution structure of Mth11 (Mth Rpp29), an essential subunit of the RNase P enzyme from the archaebacterium Methanothermobacter thermoautotrophicus (Mth). RNase P is a ubiquitous ribonucleoprotein enzyme primarily responsible for cleaving the 5' leader sequence during maturation of tRNAs in all three domains of life. In eubacteria, this enzyme is made up of two subunits: a large RNA ( approximately 120 kDa) responsible for mediating catalysis, and a small protein cofactor ( approximately 15 kDa) that modulates substrate recognition and is required for efficient in vivo catalysis. In contrast, multiple proteins are associated with eukaryotic and archaeal RNase P, and these proteins exhibit no recognizable homology to the conserved bacterial protein subunit. In reconstitution experiments with recombinantly expressed and purified protein subunits, we found that Mth Rpp29, a homolog of the Rpp29 protein subunit from eukaryotic RNase P, is an essential protein component of the archaeal holoenzyme. Consistent with its role in mediating protein-RNA interactions, we report that Mth Rpp29 is a member of the oligonucleotide/oligosaccharide binding fold family. In addition to a structured beta-barrel core, it possesses unstructured N- and C-terminal extensions bearing several highly conserved amino acid residues. To identify possible RNA contacts in the protein-RNA complex, we examined the interaction of the 11-kDa protein with the full 100-kDa Mth RNA subunit by using NMR chemical shift perturbation. Our findings represent a critical step toward a structural model of the RNase P holoenzyme from archaebacteria and higher organisms.


    Organizational Affiliation

    Biochemistry Program, Ohio State University, Columbus, OH 43210, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
conserved protein MTH11
A
97Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H)Mutation(s): 0 
Gene Names: rnp1
EC: 3.1.26.5
Find proteins for O26119 (Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H))
Go to UniProtKB:  O26119
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 35 
  • Conformers Submitted: 22 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1OQK Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-01-13
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance