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Structure paper

TitleCryo-EM insights into isoform-specific properties of the IP3R2 channel
Journal, issue, pagesNat Commun, Year 2026
Publish dateMar 22, 2026 (structure data deposition date)
AuthorsBaker MR / Lin X / Fan G / Martinez-Chavez A / Wagner LE / Malik S / Allison T / Bell B / Seryshev AB / Cordero-Morales J ...Baker MR / Lin X / Fan G / Martinez-Chavez A / Wagner LE / Malik S / Allison T / Bell B / Seryshev AB / Cordero-Morales J / Baker ML / Yule DI / Serysheva II
External linksNat Commun / Search PubMed
MethodsEM (single particle)
Resolution2.95 - 3.64 Å
Structure data

EMDB-76249: Apo-IP3R2 Local Refinement of Ligand Binding Domains
Method: EM (single particle) / Resolution: 2.95 Å

EMDB-76250: Apo-IP3R2 Local Refinement of ARM1-HD Domains
Method: EM (single particle) / Resolution: 3.21 Å

EMDB-76251: Apo-IP3R2 Local Refinement of ARM2 Domain
Method: EM (single particle) / Resolution: 3.57 Å

EMDB-76252: Apo-IP3R2 Local Refinement of ARM3-ILD-LNK domains
Method: EM (single particle) / Resolution: 2.98 Å

EMDB-76253: Apo-IP3R2 Local Refinement of TM domains
Method: EM (single particle) / Resolution: 2.99 Å

EMDB-76254: IP3R2 (+IP3/Ca2+/ATP) Local Refinement of Ligand Binding Domains
Method: EM (single particle) / Resolution: 3.57 Å

EMDB-76255: IP3R2 (+IP3/Ca2+/ATP) Local Refinement of ARM1-HD domains
Method: EM (single particle) / Resolution: 3.62 Å

EMDB-76256: IP3R2 (+IP3/Ca2+/ATP) Local Refinement of TM domains
Method: EM (single particle) / Resolution: 3.64 Å

EMDB-76257: IP3R2 (+IP3/Ca2+/ATP) Local Refinement of ARM2 domains
Method: EM (single particle) / Resolution: 3.23 Å

EMDB-76258: IP3R2 (+IP3/Ca2+/ATP) Local Refinement of ARM3-ILD-LNK domains
Method: EM (single particle) / Resolution: 3.34 Å

EMDB-76259: Structure of mammalian Type 2 Inositol 1,4,5-trisphosphate receptors (IP3R2) in the Apo-state (composite map)
Method: EM (single particle) / Resolution: 3.2 Å

76260

12ad

EMDB-76260, PDB-12ad:
Structure of mammalian Type 2 Inositol 1,4,5-trisphosphate receptors (IP3R2) in the Apo-state
Method: EM (single particle) / Resolution: 3.32 Å

EMDB-76262: Structure of mammalian Type 2 Inositol 1,4,5-trisphosphate receptor (IP3R2)in the presence of IP3/Ca2+/ATP (Composite map)
Method: EM (single particle) / Resolution: 3.4 Å

76264

12ai

EMDB-76264, PDB-12ai:
Structure of mammalian Type 2 Inositol 1,4,5-trisphosphate receptor (IP3R2) in the presence of IP3/Ca2+/ATP
Method: EM (single particle) / Resolution: 3.64 Å

Chemicals

ChemComp-ZN:
Unknown entry

ChemComp-PLX:
(9R,11S)-9-({[(1S)-1-HYDROXYHEXADECYL]OXY}METHYL)-2,2-DIMETHYL-5,7,10-TRIOXA-2LAMBDA~5~-AZA-6LAMBDA~5~-PHOSPHAOCTACOSANE-6,6,11-TRIOL / phospholipid*YM

ChemComp-ATP:
ADENOSINE-5'-TRIPHOSPHATE / ATP, energy-carrying molecule*YM

ChemComp-I3P:
D-MYO-INOSITOL-1,4,5-TRIPHOSPHATE

ChemComp-CA:
Unknown entry

Source
  • mus musculus (house mouse)
KeywordsMEMBRANE PROTEIN / ion channel

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