Evidence map›Paper›PMID 21808068›Full record

ArticleThe Journal of biological chemistry2011

RUTBC1 protein, a Rab9A effector that activates GTP hydrolysis by Rab32 and Rab33B proteins.

Ryan M Nottingham, Ian G Ganley, Francis A Barr, David G Lambright, Suzanne R Pfeffer

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

40 citing papers in PubMed, 61 citations in OpenAlex.

  1. Article
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  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Proteolysis of Rab32 byiScience · 2021
    Article
  11. Article
  12. Review
  13. VARP and Rab9 Are Dispensable for the Rab32/BLOC-3 DependentFrontiers in cellular and infection microbiology · 2020
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. 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

5 authors at 3 institutions in 2 countries.

Ryan M NottinghamDepartment of Biochemistry, Stanford University School of Medicine, Stanford, California 94305, USA.
Ian G Ganley
Francis A Barr
David G Lambright
Suzanne R Pfeffer
Stanford University · USUniversity of Liverpool · GBUniversity of Massachusetts Chan Medical School · US

Funding

INTRACELLULAR TRANSPORT--THE MANNOSE/PHOSPHATE RECEPTORR01DK037332 · NIDDK · STANFORD UNIVERSITY · PI PFEFFER, SUZANNE R · 1986 to 2019
$4.7M
INTRACELLULAR TRANSPORT--THE MANNOSE-PHOSPHATE RECEPTORR37DK037332 · NIDDK · STANFORD UNIVERSITY · PI PFEFFER, SUZANNE R · 1999 to 2008
$3.4M
Intracellular Transport-The Mannose Phosphate ReceptorR56DK037332 · NIDDK · STANFORD UNIVERSITY · PI PFEFFER, SUZANNE R · 2014 to 2014
$120k
Medical Research Council MC_UP_A500_1019NIDDK NIH HHS DK37332NIDDK NIH HHS R01 DK037332NIDDK NIH HHS R37 DK037332NIDDK NIH HHS R56 DK037332NIGMS NIH HHS GM007276
6 · The paper itself

Abstract

Rab GTPases regulate all steps of membrane trafficking. Their interconversion between active, GTP-bound states and inactive, GDP-bound states is regulated by guanine nucleotide exchange factors and GTPase-activating proteins. The substrates for most Rab GTPase-activating proteins (GAPs) are unknown. Rab9A and its effectors regulate transport of mannose 6-phosphate receptors from late endosomes to the trans-Golgi network. We show here that RUTBC1 is a Tre2/Bub2/Cdc16 domain-containing protein that binds to Rab9A-GTP both in vitro and in cultured cells, but is not a GTPase-activating protein for Rab9A. Biochemical screening of RUTBC1 Rab protein substrates revealed highest in vitro GTP hydrolysis-activating activity with Rab32 and Rab33B. Catalysis required Arg-803 of RUTBC1, and RUTBC1 could activate a catalytically inhibited Rab33B mutant (Q92A), in support of a dual finger mechanism for RUTBC1 action. Rab9A binding did not influence GAP activity of bead-bound RUTBC1 protein. In cells and cell extracts, RUTBC1 influenced the ability of Rab32 to bind its effector protein, Varp, consistent with a physiological role for RUTBC1 in regulating Rab32. In contrast, binding of Rab33B to its effector protein, Atg16L1, was not influenced by RUTBC1 in cells or extracts. The identification of a protein that binds Rab9A and inactivates Rab32 supports a model in which Rab9A and Rab32 act in adjacent pathways at the boundary between late endosomes and the biogenesis of lysosome-related organelles.

Indexed as

Amino Acid SequenceAnimalsBiocatalysisCell ExtractsCell LineGTPase-Activating ProteinsGuanosine TriphosphateHumansHydrolysisIntracellular Signaling Peptides and ProteinsMolecular Sequence DataProtein BindingProtein Structure, Tertiaryrab GTP-Binding ProteinsSubstrate SpecificityCell ExtractsGTPase-Activating ProteinsGuanosine TriphosphateIntracellular Signaling Peptides and ProteinsRAB9A protein, humanrab GTP-Binding ProteinsSGSM2 protein, human

Identifiers

PMID21808068
PMCPMC3190867
OpenAlexW2015973395

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.