Evidence map›Paper›PMID 12095255›Full record

ArticleJournal of molecular biology2002

Structural basis for mobility in the 1.1 A crystal structure of the NG domain of Thermus aquaticus Ffh.

Ursula D Ramirez, George Minasov, Pamela J Focia, Robert M Stroud, Peter Walter, Peter Kuhn, Douglas M Freymann

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular biology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

17 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. Nucleotide-binding flexibility in ultrahigh-resolution structures of the SRP GTPase Ffh.Acta crystallographica. Section D, Biological crystallography · 2008
    Article
  4. Article
  5. Review
  6. Article
  7. The crystal structure of the third signal-recognition particle GTPase FlhF reveals a homodimer with bound GTP.Proceedings of the National Academy of Sciences of the United States of America · 2007
    Article
  8. Article
  9. Article
  10. Article
  11. Analysis of protein hydration in ultrahigh-resolution structures of the SRP GTPase Ffh.Acta crystallographica. Section D, Biological crystallography · 2006
    Article
  12. Article
  13. Article
  14. Article
  15. Crystal structure of the complete core of archaeal signal recognition particle and implications for interdomain communication.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  16. Crystallization of the GMPPCP complex of the NG domains of Thermus aquaticus Ffh and FtsY.Acta crystallographica. Section D, Biological crystallography · 2003
    Article
  17. Review
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

7 authors at 3 institutions in 1 country.

Ursula D RamirezDepartment of Molecular Pharmacology and Biological Chemistry, Northwestern University Medical School, 303 E Chicago Avenue, MC S215, Chicago, IL 60611-3008, USA.
George Minasov
Pamela J Focia
Robert M Stroud
Peter Walter
Peter Kuhn
Douglas M Freymann
Northwestern University · USUniversity of California, San Francisco · USStanford Synchrotron Radiation Lightsource · US

Funding

VERY HIGH RESOLUTION STRUCTURES OF THE FFH GTPASER01GM058500 · NIGMS · NORTHWESTERN UNIVERSITY · PI FREYMANN, DOUGLAS M. · 1999 to 2005
$1.5M
NIGMS NIH HHS GM 58500NIGMS NIH HHS R01 GM058500
6 · The paper itself

Abstract

The NG domain of the prokaryotic signal recognition protein Ffh is a two-domain GTPase that comprises part of the prokaryotic signal recognition particle (SRP) that functions in co-translational targeting of proteins to the membrane. The interface between the N and G domains includes two highly conserved sequence motifs and is adjacent in sequence and structure to one of the conserved GTPase signature motifs. Previous structural studies have shown that the relative orientation of the two domains is dynamic. The N domain of Ffh has been proposed to function in regulating the nucleotide-binding interactions of the G domain. However, biochemical studies suggest a more complex role for the domain in integrating communication between signal sequence recognition and interaction with receptor. Here, we report the structure of the apo NG GTPase of Ffh from Thermus aquaticus refined at 1.10 A resolution. Although the G domain is very well ordered in this structure, the N domain is less well ordered, reflecting the dynamic relationship between the two domains previously inferred. We demonstrate that the anisotropic displacement parameters directly visualize the underlying mobility between the two domains, and present a detailed structural analysis of the packing of the residues, including the critical alpha4 helix, that comprise the interface. Our data allows us to propose a structural explanation for the functional significance of sequence elements conserved at the N/G interface.

Indexed as

Bacterial ProteinsCrystallography, X-RayGTP PhosphohydrolasesModels, MolecularProtein Structure, TertiarySignal Recognition ParticleThermusBacterial ProteinsGTP PhosphohydrolasesSignal Recognition Particle

Identifiers

PMID12095255
PMCPMC3542393
OpenAlexW2157331768

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.