Cited by 1,628Protein Kinase Regulation and GTPase SignalingPI3K/AKT/mTOR signaling in cancerSphingolipid Metabolism and Signaling

Regulation of Phosphoinositide-Specific Phospholipase C

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Rhee, Sue Goo·2001·Annual Review of Biochemistry

Abstract

Eleven distinct isoforms of phosphoinositide-specific phospholipase C (PLC), which are grouped into four subfamilies (beta, gamma, delta, and epsilon), have been identified in mammals. These isozymes catalyze the hydrolysis of phosphatidylinositol 4,5-bisphosphate [PtdIns(4,5)P2] to inositol 1,4,5-trisphosphate and diacylglycerol in response to the activation of more than 100 different cell surface receptors. All PLC isoforms contain X and Y domains, which form the catalytic core, as well as various combinations of regulatory domains that are common to many other signaling proteins. These regulatory domains serve to target PLC isozymes to the vicinity of their substrate or activators through protein-protein or protein-lipid interactions. These domains (with their binding partners in parentheses or brackets) include the pleckstrin homology (PH) domain [PtdIns(3)P, beta gamma subunits of G proteins] and the COOH-terminal region including the C2 domain (GTP-bound alpha subunit of Gq) of PLC-beta; the PH domain [PtdIns(3,4,5)P3] and Src homology 2 domain [tyrosine-phosphorylated proteins, PtdIns(3,4,5)P3] of PLC-gamma; the PH domain [PtdIns(4,5)P2] and C2 domain (Ca2+) of PLC-delta; and the Ras binding domain (GTP-bound Ras) of PLC-epsilon. The presence of distinct regulatory domains in PLC isoforms renders them susceptible to different modes of activation. Given that the partners that interact with these regulatory domains of PLC isozymes are generated or eliminated in specific…

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Crossref · 10.1146/annurev.biochem.70.1.281

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Authors
Rhee, S. G.
Affiliations
National Institutes of Health (US)
Corresponding author
Rhee, Sue Goo
Venue
Annual Review of Biochemistry
Published
2001-06
Volume
70
Issue
1
Pages
281-312
ISSN
  • 0066-4154 (ISSN-L)
  • 1545-4509
OpenAlex
W1958742527
Cited by
1,628
References
1
Citations by year
2026: 15 · 2025: 30 · 2024: 22 · 2023: 35 · 2022: 30 · 2021: 27 · 2020: 33 · 2019: 30 · 2018: 38 · 2017: 40 · 2016: 41 · 2015: 54 · 2014: 70 · 2013: 70 · 2012: 73
FWCI
8.05
Type
journal article
Language
en
Open access
Locations
  • Annual Review of Biochemistry (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
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 › Sphingolipid Metabolism and Signaling
Keywords
phosphatidylinositol-specific phospholipase C, PLC isoforms, phospholipase C beta, phospholipase C-gamma, phosphatidylinositol 4,5-bisphosphate, inositol 1,4,5-trisphosphate, diacylglycerol, pleckstrin homology domain, C2 domain, SH2 domain, Ras-binding domain, G protein beta gamma subunits, phosphatidylinositol 3,4,5-trisphosphate, protein-protein interaction, protein-lipid interactions, signal transduction
MeSH terms
Cell Nucleus, Enzyme Activation, Isoenzymes, Phosphatidylinositols, Type C Phospholipases, Protein-Tyrosine Kinases, Signal Transduction, GTP-Binding Proteins, Protein Subunits

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