Cited by 330Protein Kinase Regulation and GTPase SignalingPI3K/AKT/mTOR signaling in cancerMetabolism, Diabetes, and Cancer

Activation of Phospholipase C-γ by Phosphatidylinositol 3,4,5-Trisphosphate

Open access
Bae, Yun Soo, Cantley, Lloyd G., Chen, Ching-Shih, Kim, Seung-Ryul, Kwon, Ki-Sun, Rhee, Sue Goo·1998·Journal of Biological Chemistry

Abstract

Signal transduction across cell membranes often involves the activation of both phosphatidylinositol (PI)-specific phospholipase C (PLC) and phosphoinositide 3-kinase (PI 3-kinase). Phosphatidylinositol 4,5-bisphosphate (PI(4,5)P2), a substrate for both enzymes, is converted to phosphatidylinositol 3,4, 5-trisphosphate (PI(3,4,5)P3) by the action of PI 3-kinase. Here, we show that PI(3,4,5)P3 activates purified PLC-gamma isozymes by interacting with their Src homology 2 domains. Furthermore, the expression of an activated catalytic subunit of PI 3-kinase in COS-7 cells resulted in an increase in inositol phosphate formation, whereas platelet-derived growth factor-induced PLC activation in NIH 3T3 cells was markedly inhibited by the specific PI 3-kinase inhibitor LY294002. These results suggest that receptors coupled to PI 3-kinase may activate PLC-gamma isozymes indirectly, in the absence of PLC-gamma tyrosine phosphorylation, through the generation of PI(3,4,5)P3.

Integrity signals

Registry

Crossref · 10.1074/jbc.273.8.4465

Cites

33 of 33 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

We couldn’t retrieve this paper’s full text, so its claims and self-check weren’t run. The registry and citation checks still apply.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Falasca, 1998, EMBO J.

Cited by

Sorted by citations

Authors
Bae, Y. S., Cantley, L. G., Chen, C.-S., Kim, S.-R., Kwon, K.-S., & Rhee, S. G.
Affiliations
  • National Institutes of Health (US)
  • Harvard University (US)
  • University of Kentucky (US)
Corresponding author
Rhee, Sue Goo
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1998-02
Volume
273
Issue
8
Pages
4465-4469
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2091179088
Cited by
330
References
33
Citations by year
2026: 3 · 2025: 1 · 2024: 3 · 2023: 5 · 2022: 2 · 2021: 4 · 2020: 5 · 2019: 1 · 2018: 3 · 2017: 5 · 2016: 5 · 2015: 5 · 2014: 3 · 2013: 5 · 2012: 8
FWCI
14.29
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01gm053448-08, 7r01dk048871-05)
  • National Institute of General Medical Sciences (GM 53448)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK-48871)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
phospholipase C-gamma, phosphatidylinositol 3,4,5-trisphosphate, phosphatidylinositol 3-kinase, SH2 domain, phosphatidylinositol 4,5-bisphosphate, signal transduction, platelet-derived growth factor, LY294002, inositol phosphate formation, receptor signaling
MeSH terms
Animals, Enzyme Activation, HeLa Cells, Humans, Isoenzymes, Type C Phospholipases, Substrate Specificity, Signal Transduction, Phosphatidylinositol Phosphates, src Homology Domains, COS Cells, Phospholipase C gamma

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review