Conformational motions and ligand-binding underlying gating and regulation in IP3R channel

Here authors report cryo-EM structures of IP3R1 which provide atomic details of IP3, Ca2+ and ATP binding. Molecular motions of key domains and sidechains were found to regulate ligand binding and gating, which are validated by functional assays.

Bibliographic Details
Main Authors: Guizhen Fan, Mariah R. Baker, Lara E. Terry, Vikas Arige, Muyuan Chen, Alexander B. Seryshev, Matthew L. Baker, Steven J. Ludtke, David I. Yule, Irina I. Serysheva
Format: Article
Language:English
Published: Nature Portfolio 2022-11-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-022-34574-1
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author Guizhen Fan
Mariah R. Baker
Lara E. Terry
Vikas Arige
Muyuan Chen
Alexander B. Seryshev
Matthew L. Baker
Steven J. Ludtke
David I. Yule
Irina I. Serysheva
author_facet Guizhen Fan
Mariah R. Baker
Lara E. Terry
Vikas Arige
Muyuan Chen
Alexander B. Seryshev
Matthew L. Baker
Steven J. Ludtke
David I. Yule
Irina I. Serysheva
author_sort Guizhen Fan
collection DOAJ
description Here authors report cryo-EM structures of IP3R1 which provide atomic details of IP3, Ca2+ and ATP binding. Molecular motions of key domains and sidechains were found to regulate ligand binding and gating, which are validated by functional assays.
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spelling doaj.art-19978619640c40e4bd70b573581c08b92022-12-22T02:46:23ZengNature PortfolioNature Communications2041-17232022-11-0113111510.1038/s41467-022-34574-1Conformational motions and ligand-binding underlying gating and regulation in IP3R channelGuizhen Fan0Mariah R. Baker1Lara E. Terry2Vikas Arige3Muyuan Chen4Alexander B. Seryshev5Matthew L. Baker6Steven J. Ludtke7David I. Yule8Irina I. Serysheva9Department of Biochemistry and Molecular Biology, Structural Biology Imaging Center, McGovern Medical School at The University of Texas Health Science Center at HoustonDepartment of Biochemistry and Molecular Biology, Structural Biology Imaging Center, McGovern Medical School at The University of Texas Health Science Center at HoustonDepartment of Pharmacology and Physiology, School of Medicine and Dentistry, University of RochesterDepartment of Pharmacology and Physiology, School of Medicine and Dentistry, University of RochesterVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of MedicineDepartment of Biochemistry and Molecular Biology, Structural Biology Imaging Center, McGovern Medical School at The University of Texas Health Science Center at HoustonDepartment of Biochemistry and Molecular Biology, Structural Biology Imaging Center, McGovern Medical School at The University of Texas Health Science Center at HoustonVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of MedicineDepartment of Pharmacology and Physiology, School of Medicine and Dentistry, University of RochesterDepartment of Biochemistry and Molecular Biology, Structural Biology Imaging Center, McGovern Medical School at The University of Texas Health Science Center at HoustonHere authors report cryo-EM structures of IP3R1 which provide atomic details of IP3, Ca2+ and ATP binding. Molecular motions of key domains and sidechains were found to regulate ligand binding and gating, which are validated by functional assays.https://doi.org/10.1038/s41467-022-34574-1
spellingShingle Guizhen Fan
Mariah R. Baker
Lara E. Terry
Vikas Arige
Muyuan Chen
Alexander B. Seryshev
Matthew L. Baker
Steven J. Ludtke
David I. Yule
Irina I. Serysheva
Conformational motions and ligand-binding underlying gating and regulation in IP3R channel
Nature Communications
title Conformational motions and ligand-binding underlying gating and regulation in IP3R channel
title_full Conformational motions and ligand-binding underlying gating and regulation in IP3R channel
title_fullStr Conformational motions and ligand-binding underlying gating and regulation in IP3R channel
title_full_unstemmed Conformational motions and ligand-binding underlying gating and regulation in IP3R channel
title_short Conformational motions and ligand-binding underlying gating and regulation in IP3R channel
title_sort conformational motions and ligand binding underlying gating and regulation in ip3r channel
url https://doi.org/10.1038/s41467-022-34574-1
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