Evidence map›Paper›PMID 16407827›Full record

ArticleOncogene2006

The elucidation of novel SH2 binding sites on PLD2.

M Di Fulvio, N Lehman, X Lin, I Lopez, J Gomez-Cambronero

Abstract read
In one paragraph

Article in Oncogene, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing 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

30 citing papers in PubMed, 44 citations in OpenAlex.

  1. Structure and regulation of human phospholipase D.Advances in biological regulation · 2021
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  15. Phospholipase D2 (PLD2) is a guanine nucleotide exchange factor (GEF) for the GTPase Rac2.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
  16. Review
  17. Article
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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 2 institutions in 1 country.

M Di FulvioDepartment of Physiology & Biophysics, Wright State University School of Medicine, Dayton, OH 45435, USA.
N Lehman
X Lin
I Lopez
J Gomez-Cambronero
Wright State University · USUniversity of Illinois Chicago · US

Funding

PLD2, as a GEF or as a Lipase, is Central to Leukocyte ChemotaxisR01HL056653 · NHLBI · WRIGHT STATE UNIVERSITY · PI CAMBRONERO, JULIAN G. · 2004 to 2016
$4.0M
SIGNAL TRANSDUCTION IN NEUTROPHIL MEDIATED HEART INJURYR29HL056653 · NHLBI · WRIGHT STATE UNIVERSITY · PI GOMEZ-CAMBRONERO, JULIAN · 1998 to 2002
$301k
NHLBI NIH HHS HL056653NHLBI NIH HHS R01 HL056653NHLBI NIH HHS R29 HL056653
6 · The paper itself

Abstract

Our laboratory has recently reported that the enzyme phospholipase D2 (PLD2) exists as a ternary complex with PTP1b and the growth factor receptor bound protein 2 (Grb2). Here, we establish the mechanistic underpinnings of the PLD2/Grb2 association. We have identified residues Y(169) and Y(179) in the PLD2 protein as being essential for the Grb2 interaction. We present evidence indicating that Y(169) and Y(179) are located within two consensus sites in PLD2 that mediate an SH2 interaction with Grb2. This was demonstrated with an SH2-deficient GSTGrb2 R86K mutant that failed to pull-down PLD2 in vitro. In order to elucidate the functions of the two neighboring tyrosines, we created a new class of deletion and point mutants in PLD2. Phenylalanine replacement of Y(169) (PLD2 Y169F) or Y(179) (PLD2 Y179F) reduced Grb2 binding while simultaneous mutation completely abolished it. The role of the two binding sites on PLD2 was found to be functionally nonequivalent: Y(169) serves to modulate the activity of the enzyme, whereas Y(179) regulates total tyrosine phosphorylation of the protein. Interestingly, binding of Grb2 to PLD2 occurs irrespectively of lipase activity, since Grb2 binds to catalytically inactive PLD2 mutants. Finally, PLD2 residues Y(169) and Y(179) are necessary for the recruitment of Sos, but only overexpression of the PLD2 Y179F mutant resulted in increased Ras activity, p44/42(Erk) phosphorylation and enhanced DNA synthesis. Since Y(169) remains able to modulate enzyme activity and is capable of binding to Grb2 in the PLD2 Y179F mutant, we propose that Y(169) is kept under negative regulation by Y(179). When this is released, Y(169) mediates cellular proliferation through the Ras/MAPK pathway.

Indexed as

Amino Acid SequenceAmino Acid SubstitutionAnimalsCell DivisionChlorocebus aethiopsCOS CellsGene Expression RegulationHumansImmunoprecipitationMolecular Sequence DataMutagenesis, Site-DirectedPhospholipase DPhosphorylationPhosphotyrosineProtein BindingProtein Interaction MappingPhospholipase Dphospholipase D2PhosphotyrosineRecombinant Fusion ProteinsSon of Sevenless Protein, DrosophilaTyrosine

Identifiers

PMID16407827
PMCPMC3074567
OpenAlexW2008492030

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.