Evidence map›Paper›PMID 22991464›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Mitochondrial ribonuclease P structure provides insight into the evolution of catalytic strategies for precursor-tRNA 5' processing.

Michael J Howard, Wan Hsin Lim, Carol A Fierke, Markos Koutmos

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
5.2field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

73 citing papers in PubMed, 115 citations in OpenAlex.

  1. Article
  2. Structures of pentatricopeptide repeat proteins.Acta crystallographica. Section F, Structural biology communications · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. How RNases Shape Mitochondrial Transcriptomes.International journal of molecular sciences · 2022
    Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. The Dynamic Network of RNP RNase P Subunits.International journal of molecular sciences · 2021
    Review

13 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Michael J HowardDepartment of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
Wan Hsin Lim
Carol A Fierke
Markos Koutmos
University of Michigan–Ann Arbor · USPredictive Biology (United States) · USUniformed Services University of the Health Sciences · US

Funding

ENZYMOLOGY OF RNA PROCESSING ENZYMESR01GM055387 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI FIERKE, CAROL A · 1997 to 2014
$4.3M
NIGMS NIH HHS GM55387NIGMS NIH HHS R01 GM055387
6 · The paper itself

Abstract

Ribonuclease P (RNase P) catalyzes the maturation of the 5' end of tRNA precursors. Typically these enzymes are ribonucleoproteins with a conserved RNA component responsible for catalysis. However, protein-only RNase P (PRORP) enzymes process precursor tRNAs in human mitochondria and in all tRNA-using compartments of Arabidopsis thaliana. PRORP enzymes are nuclear encoded and conserved among many eukaryotes, having evolved recently as yeast mitochondrial genomes encode an RNase P RNA. Here we report the crystal structure of PRORP1 from A. thaliana at 1.75 Å resolution, revealing a prototypical metallonuclease domain tethered to a pentatricopeptide repeat (PPR) domain by a structural zinc-binding domain. The metallonuclease domain is a unique high-resolution structure of a Nedd4-BP1, YacP Nucleases (NYN) domain that is a member of the PIN domain-like fold superfamily, including the FLAP nuclease family. The structural similarity between PRORP1 and the FLAP nuclease family suggests that they evolved from a common ancestor. Biochemical data reveal that conserved aspartate residues in PRORP1 are important for catalytic activity and metal binding and that the PPR domain also enhances activity, likely through an interaction with pre-tRNA. These results provide a foundation for understanding tRNA maturation in organelles. Furthermore, these studies allow for a molecular-level comparison of the catalytic strategies used by the only known naturally evolved protein and RNA-based catalysts that perform the same biological function, pre-tRNA maturation, thereby providing insight into the differences between the prebiotic RNA world and the present protein-dominated world.

Indexed as

Models, MolecularArabidopsisCrystallography, X-RayEvolution, MolecularHumansMitochondriaProtein Structure, TertiaryRibonuclease PRNA PrecursorsRNA Processing, Post-TranscriptionalRibonuclease PRNA Precursors

Identifiers

PMID22991464
PMCPMC3479547
OpenAlexW1989011756

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.