6UQK | pdb_00006uqk

Cryo-EM structure of type 3 IP3 receptor revealing presence of a self-binding peptide

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: mpstruc

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D		e6uqkD1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: G-alpha, MMR_HSR1	F:	ECOD (20:10:01)
C		e6uqkC1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: G-alpha, MMR_HSR1	F:	ECOD (20:10:01)
B		e6uqkB1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: G-alpha, MMR_HSR1	F:	ECOD (20:10:01)
A		e6uqkA1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: G-alpha, MMR_HSR1	F:	ECOD (20:10:01)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF08454	RyR and IP3R Homology associated (RIH_assoc)	RyR and IP3R Homology associated	-	Repeat
A, B, C, D	PF02815	MIR domain (MIR)	MIR domain	The MIR (protein mannosyltransferase, IP3R and RyR) domain is a domain that may have a ligand transferase function [1].	Domain
A, B, C, D	PF01365	RIH domain (RYDR_ITPR)	RIH domain	-	Repeat
A, B, C, D	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	inositol 1,4,5-triphosphate receptor, type 3	binding phospholipid binding lipid binding phosphatidylinositol binding cation binding ion binding calcium ion binding metal ion binding small molecule binding calcium channel activity monoatomic cation transmembrane transporter activity intracellularly ligand-gated monoatomic ion channel activity gated channel activity monoatomic ion channel activity binding phospholipid binding lipid binding phosphatidylinositol binding cation binding ion binding calcium ion binding metal ion binding small molecule binding calcium channel activity monoatomic cation transmembrane transporter activity intracellularly ligand-gated monoatomic ion channel activity gated channel activity monoatomic ion channel activity intracellularly gated calcium channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity channel activity ligand-gated calcium channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity ligand-gated monoatomic cation channel activity transmembrane transporter activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding inositol 1,4,5-trisphosphate-gated calcium channel activity inositol hexakisphosphate binding alcohol binding transition metal ion binding zinc ion binding inositol 1,3,4,5 tetrakisphosphate binding inositol 1,4,5 trisphosphate binding	positive regulation of cytosolic calcium ion concentration biological regulation regulation of biological quality response to stimulus response to metal ion response to chemical response to calcium ion multicellular organismal process system process sensory perception of chemical stimulus sensory perception nervous system process sensory perception of taste protein-containing complex organization positive regulation of cytosolic calcium ion concentration biological regulation regulation of biological quality response to stimulus response to metal ion response to chemical response to calcium ion multicellular organismal process system process sensory perception of chemical stimulus sensory perception nervous system process sensory perception of taste protein-containing complex organization protein homotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis behavior learning or memory cognition memory sensory perception of bitter taste sensory perception of sweet taste regulation of body fluid levels wound healing cell activation hemostasis blood coagulation response to stress coagulation response to wounding platelet activation inorganic ion homeostasis chemical homeostasis homeostatic process monoatomic ion homeostasis calcium ion homeostasis monoatomic cation homeostasis sensory perception of umami taste calcium ion transmembrane import into cytosol transport monoatomic ion transmembrane transport establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport release of sequestered calcium ion into cytosol localization monoatomic ion transport monoatomic cation transport calcium ion transmembrane transport cellular response to stimulus regulation of biological process regulation of cellular process signaling G protein-coupled receptor signaling pathway signal transduction cell communication positive regulation of cell communication modulation of chemical synaptic transmission positive regulation of biological process long-term synaptic potentiation synaptic signaling positive regulation of cellular process regulation of synaptic plasticity trans-synaptic signaling regulation of signaling cell-cell signaling positive regulation of synaptic transmission chemical synaptic transmission regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication positive regulation of signaling	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membraneless organelle intracellular membrane-bounded organelle nucleolus intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle membraneless organelle nuclear lumen membrane apical part of cell cell periphery plasma membrane cluster of actin-based cell projections brush border cytoplasm nucleoplasm organelle subcompartment endomembrane system endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane endoplasmic reticulum membrane protein-containing complex receptor complex platelet dense tubular network platelet dense tubular network membrane bounding membrane of organelle cytoplasmic side of membrane side of membrane cytoplasmic side of endoplasmic reticulum membrane nuclear outer membrane nuclear membrane organelle outer membrane organelle envelope nuclear envelope outer membrane intracellular vesicle cytoplasmic vesicle membrane vesicle membrane cytoplasmic vesicle secretory granule secretory vesicle vesicle secretory granule membrane sarcoplasm sarcoplasmic reticulum somatodendritic compartment cell body neuronal cell body transport vesicle transport vesicle membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR036300	Mir domain superfamily	Homologous Superfamily
A, B, C, D	IPR000699	RIH domain	Domain
A, B, C, D	IPR013662	RyR/IP3R Homology associated domain	Domain
A, B, C, D	IPR016093	MIR motif	Domain
A, B, C, D	IPR014821	Inositol 1,4,5-trisphosphate/ryanodine receptor	Domain
A, B, C, D	IPR000493	Inositol 1,4,5-trisphosphate receptor	Family
A, B, C, D	IPR005821	Ion transport domain	Domain
A, B, C, D	IPR015925	Ryanodine/Inositol 1,4,5-trisphosphate receptor	Family
A, B, C, D	IPR035910	RyR/IP3 receptor binding core, RIH domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: Q14573	type 1 diabetes mellitus acrodermatitis pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia psoriasis testicular germ cell tumor acquired metabolic disease B-cell chronic lymphocytic leukemia Crohn disease Diabetes, Autoimmune Graves disease lung adenocarcinoma medulloblastoma pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma type 1 diabetes mellitus acrodermatitis pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia psoriasis testicular germ cell tumor acquired metabolic disease B-cell chronic lymphocytic leukemia Crohn disease Diabetes, Autoimmune Graves disease lung adenocarcinoma medulloblastoma pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma subependymal giant cell astrocytoma Barrett esophagus esophageal adenocarcinoma Hodgkins lymphoma lung cancer ovarian cancer pancreatic intraductal papillary-mucinous neoplasm pituitary cancer testicular cancer autism spectrum disorder IDDM 1 malignant pancreatic neoplasm

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Calcium Ion-Selective	InsP₃R3 Inositol-1,4,5-trisphosphate receptor and presence of self-binding peptide

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.