Evidence map›Paper›PMID 31300652›Full record

ArticleNature communications2019

Structural underpinnings of Ric8A function as a G-protein α-subunit chaperone and guanine-nucleotide exchange factor.

Dhiraj Srivastava, Lokesh Gakhar, Nikolai O Artemyev

Open access · greenAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

15 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. GNature communications · 2024
    Article
  4. Chemokine CX3CL1 (Fractalkine) Signaling and Diabetic Encephalopathy.International journal of molecular sciences · 2024
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Ric-8A, a GEF, and a Chaperone for G Protein α-Subunits: Evidence for the Two-Faced Interface.BioEssays : news and reviews in molecular, cellular and developmental biology · 2020
    Article
  13. Article
  14. Transducin Partners Outside the Phototransduction Pathway.Frontiers in cellular neuroscience · 2020
    Article
  15. Article
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

3 authors at 1 institution in 1 country.

Dhiraj SrivastavaDepartment of Molecular Physiology and Biophysics, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA.
Lokesh GakharDepartment of Biochemistry, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA.ORCID http://orcid.org/0000-0002-3319-1902
Nikolai O ArtemyevDepartment of Molecular Physiology and Biophysics, University of Iowa Carver College of Medicine, Iowa City, IA, 52242, USA. nikolai-artemyev@uiowa.edu.ORCID http://orcid.org/0000-0002-5266-6854
University of Iowa · US

Funding

Time resolved SAXS studies on the RP2/Arl3 complex pp.484-485P41GM103622 · NIGMS · ILLINOIS INSTITUTE OF TECHNOLOGY · PI IRVING, THOMAS C · 2012 to 2020
$11.9M
MOLECULAR MECHANISM OF PHOTORECEPTOR G PROTEIN SIGNALINGR01EY012682 · NEI · UNIVERSITY OF IOWA · PI ARTEMYEV, NIKOLAI O · 2000 to 2022
$7.5M
Advanced Pixel Array Detector for Time-Resolved SAXS and Fiber DiffractionS10OD018090 · OD · ILLINOIS INSTITUTE OF TECHNOLOGY · PI IRVING, THOMAS C · 2014 to 2014
$529k
NEI NIH HHS R01 EY012682NIGMS NIH HHS P41 GM103622NIH HHS S10 OD018090U.S. Department of Health & Human Services | NIH | National Eye Institute (NEI) RO1 EY-12682
6 · The paper itself

Abstract

Resistance to inhibitors of cholinesterase 8A (Ric8A) is an essential regulator of G protein α-subunits (Gα), acting as a guanine nucleotide exchange factor and a chaperone. We report two crystal structures of Ric8A, one in the apo form and the other in complex with a tagged C-terminal fragment of Gα. These structures reveal two principal domains of Ric8A: an armadillo-fold core and a flexible C-terminal tail. Additionally, they show that the Gα C-terminus binds to a highly-conserved patch on the concave surface of the Ric8A armadillo-domain, with selectivity determinants residing in the Gα sequence. Biochemical analysis shows that the Ric8A C-terminal tail is critical for its stability and function. A model of the Ric8A/Gα complex derived from crosslinking mass spectrometry and molecular dynamics simulations suggests that the Ric8A C-terminal tail helps organize the GTP-binding site of Gα. This study lays the groundwork for understanding Ric8A function at the molecular level.

Indexed as

AnimalsArmadillo Domain ProteinsCattleGTP-Binding Protein alpha SubunitsGuanine Nucleotide Exchange FactorsMolecular ChaperonesMolecular Dynamics SimulationMutagenesis, Site-DirectedRecombinant ProteinsScattering, Small AngleX-Ray DiffractionArmadillo Domain ProteinsGTP-Binding Protein alpha SubunitsGuanine Nucleotide Exchange FactorsMolecular ChaperonesRecombinant Proteins

Identifiers

PMID31300652
PMCPMC6625990
OpenAlexW2961733094

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.