Cited by 8Protein Kinase Regulation and GTPase SignalingReceptor Mechanisms and SignalingProtein Structure and Dynamics

The crystal and cryo-EM structures of PLCγ2 reveal dynamic interdomain recognitions in autoinhibition

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Shin, Young-Cheul, Plummer-Medeiros, Ashlee Marie, Mungenast, Alison, Choi, Hyeong-wook, TenDyke, Karen, Zhu, Xiaojie, Shepard, Jennifer, Sanders, Kristen +9 more·2024·Science Advances

Abstract

Phospholipase C gamma 2 (PLCγ2) plays important roles in cell signaling downstream of various membrane receptors. PLCγ2 contains a multidomain inhibitory region critical for its regulation, while it has remained unclear how these domains contribute to PLCγ2 activity modulation. Here we determined three structures of human PLCγ2 in autoinhibited states, which reveal dynamic interactions at the autoinhibition interface, involving the conformational flexibility of the Src homology 3 (SH3) domain in the inhibitory region, and its previously unknown interaction with a carboxyl-terminal helical domain in the core region. We also determined a structure of PLCγ2 bound to the kinase domain of fibroblast growth factor receptor 1 (FGFR1), which demonstrates the recognition of FGFR1 by the nSH2 domain in the inhibitory region of PLCγ2. Our results provide structural insights into PLCγ2 regulation that will facilitate future mechanistic studies to understand the entire activation process.

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Authors
Shin, Y.-C., Plummer-Medeiros, A. M., Mungenast, A., Choi, H.-W., TenDyke, K., Zhu, X., Shepard, J., Sanders, K., Zhuang, N., Hu, L., Qian, D., Song, K., Xu, C., Wang, J., Poda, S. B., Liao, M., & Chen, Y.
Affiliations
  • Harvard University (US)
  • Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA.
  • Eisai (United States) (US)
  • Viva Biotech (China) (CN)
  • University of Massachusetts Chan Medical School (US)
Corresponding author
  • Shepard, Jennifer
  • Liao, Maofu
  • Chen, Yu
Venue
Science Advances
Published
2024-11-29
Volume
10
Issue
48
Pages
eadn6037-eadn6037
ISSN
2375-2548 (ISSN-L)
OpenAlex
W4404840056
Cited by
7
References
65
Citations by year
2026: 4 · 2025: 3
FWCI
0.95
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Science Advances (publishedVersion, cc-by-nc)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Funders
Eisai
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 › Receptor Mechanisms and Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
PLCγ2, autoinhibition, SH3 domain, FGFR1, kinase domain, protein-protein interaction, conformational flexibility, enzyme activation, signal transduction
MeSH terms
Protein Domains, Humans, Models, Molecular, Protein Binding, Protein Conformation, Crystallography, X-Ray, src Homology Domains, Cryoelectron Microscopy, Receptor, Fibroblast Growth Factor, Type 1, Phospholipase C gamma

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