7XLQ

Structure of human R-type voltage-gated CaV2.3-alpha2/delta1-beta1 channel complex in the ligand-free (apo) state

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: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
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)
A	PF16905	e7xlqA3	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: PF16905	ECOD (1.6)
A	PF00520	e7xlqA1	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: PF00520	ECOD (1.6)
A	PF08763	e7xlqA6	A: extended segments	X: Voltage gated calcium channel IQ domain (From Topology)	H: Voltage gated calcium channel IQ domain (From Topology)	T: Voltage gated calcium channel IQ domain	F: PF08763	ECOD (1.6)
C [auth B]	PF00625	e7xlqB1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00625	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF16905	Voltage-dependent L-type calcium channel, IQ-associated (GPHH)	Voltage-dependent L-type calcium channel, IQ-associated	-	Family
A	PF08763	Voltage gated calcium channel IQ domain (Ca_chan_IQ)	Voltage gated calcium channel IQ domain	Voltage gated calcium channels control cellular calcium entry in response to changes in membrane potential. The isoleucine-glutamine (IQ) motif in the voltage gated calcium channel IQ domain interacts with hydrophobic pockets of Ca2+/calmodulin [1]. ...	Voltage gated calcium channels control cellular calcium entry in response to changes in membrane potential. The isoleucine-glutamine (IQ) motif in the voltage gated calcium channel IQ domain interacts with hydrophobic pockets of Ca2+/calmodulin [1]. The interaction regulates two self-regulatory calcium dependent feedback mechanism, calcium dependent inactivation (CDI), and calcium-dependent facilitation (CDF).	Domain
A	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family
B [auth D]	PF08399	VWA N-terminal (VWA_N)	VWA N-terminal	-	Family
B [auth D]	PF00092	von Willebrand factor type A domain (VWA)	von Willebrand factor type A domain	-	Domain
B [auth D]	PF08473	Neuronal voltage-dependent calcium channel alpha 2acd (VGCC_alpha2)	Neuronal voltage-dependent calcium channel alpha 2acd	-	Family
C [auth B]	PF00625	Guanylate kinase (Guanylate_kin)	Guanylate kinase	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Voltage-dependent R-type calcium channel subunit alpha-1E	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity cation binding ion binding binding calcium ion binding metal ion binding small molecule binding calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity channel activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity high voltage-gated calcium channel activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity	import into cell calcium ion transmembrane import into cytosol transport monoatomic ion transmembrane transport import across plasma membrane inorganic ion transmembrane transport establishment of localization inorganic cation import across plasma membrane calcium ion transport metal ion transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization calcium ion import across plasma membrane import into cell calcium ion transmembrane import into cytosol transport monoatomic ion transmembrane transport import across plasma membrane inorganic ion transmembrane transport establishment of localization inorganic cation import across plasma membrane calcium ion transport metal ion transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization calcium ion import across plasma membrane inorganic ion import across plasma membrane monoatomic ion transport cellular process calcium ion import calcium ion import into cytosol monoatomic cation transport calcium ion transmembrane transport trans-synaptic signaling synaptic signaling regulation of biological process signaling anterograde trans-synaptic signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication	synapse cell junction cellular anatomical entity somatodendritic compartment cell body neuronal cell body cell periphery plasma membrane membrane protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane protein complex cation channel complex synapse cell junction cellular anatomical entity somatodendritic compartment cell body neuronal cell body cell periphery plasma membrane membrane protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane protein complex cation channel complex transporter complex transmembrane transporter complex calcium channel complex monoatomic ion channel complex
B [auth D]	Voltage-dependent calcium channel subunit alpha-2/delta-1	calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity channel activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity channel activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity cation binding ion binding binding metal ion binding small molecule binding	heart process cardiac muscle cell contraction multicellular organismal process system process cardiac muscle cell action potential involved in contraction biological regulation action potential actin filament-based movement cardiac muscle contraction muscle contraction muscle system process striated muscle contraction circulatory system process actin filament-based process heart process cardiac muscle cell contraction multicellular organismal process system process cardiac muscle cell action potential involved in contraction biological regulation action potential actin filament-based movement cardiac muscle contraction muscle contraction muscle system process striated muscle contraction circulatory system process actin filament-based process cellular process regulation of biological quality actin-mediated cell contraction heart contraction cardiac muscle cell action potential blood circulation regulation of membrane potential calcium ion transmembrane import into cytosol transport monoatomic ion transmembrane transport positive regulation of cytosolic calcium ion concentration inorganic ion transmembrane transport establishment of localization calcium ion transport metal ion transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport monoatomic cation transport calcium ion transport into cytosol calcium ion transmembrane transport regulation of action potential regulation of biological process regulation of membrane repolarization during action potential membrane repolarization regulation of membrane repolarization membrane repolarization during action potential regulation of calcium ion transport regulation of localization regulation of transport regulation of monoatomic ion transport regulation of metal ion transport calcium ion transmembrane transport via high voltage-gated calcium channel cardiac muscle cell membrane repolarization ventricular cardiac muscle cell membrane repolarization regulation of cardiac muscle cell membrane repolarization regulation of ventricular cardiac muscle cell membrane repolarization regulation of calcium ion transmembrane transporter activity positive regulation of cation transmembrane transport positive regulation of calcium ion transport regulation of cellular process regulation of voltage-gated calcium channel activity positive regulation of monoatomic ion transport positive regulation of monoatomic ion transmembrane transport regulation of cation channel activity positive regulation of cation channel activity regulation of molecular function regulation of transmembrane transport positive regulation of voltage-gated calcium channel activity positive regulation of biological process regulation of transmembrane transporter activity regulation of monoatomic ion transmembrane transport regulation of transporter activity regulation of calcium ion transmembrane transport positive regulation of molecular function positive regulation of calcium ion transmembrane transporter activity positive regulation of calcium ion transmembrane transport positive regulation of transmembrane transport positive regulation of cellular process positive regulation of high voltage-gated calcium channel activity regulation of monoatomic ion transmembrane transporter activity regulation of high voltage-gated calcium channel activity positive regulation of transport positive regulation of transporter activity positive regulation of ion transmembrane transporter activity regulation of monoatomic cation transmembrane transport import into cell import across plasma membrane inorganic cation import across plasma membrane calcium ion import across plasma membrane inorganic ion import across plasma membrane calcium ion import calcium ion import into cytosol signaling regulation of heart contraction regulation of system process cell-cell signaling involved in cardiac conduction membrane depolarization during cardiac muscle cell action potential cell communication bundle of His cell to Purkinje myocyte signaling regulation of multicellular organismal process cell communication involved in cardiac conduction bundle of His cell to Purkinje myocyte communication membrane depolarization during action potential cell-cell signaling regulation of blood circulation bundle of His cell action potential membrane depolarization cardiac conduction membrane depolarization during bundle of His cell action potential regulation of calcium ion transmembrane transport via high voltage-gated calcium channel cellular response to stimulus cellular response to nitrogen compound response to organic substance response to stimulus response to organonitrogen compound response to endogenous stimulus response to oxygen-containing compound response to nitrogen compound cellular response to amyloid-beta cellular response to oxygen-containing compound cellular response to endogenous stimulus cellular response to chemical stimulus cellular response to organonitrogen compound response to chemical cellular response to organic substance response to amyloid-beta regulation of heart rate by cardiac conduction regulation of heart rate	protein-containing complex plasma membrane protein complex sarcolemma voltage-gated calcium channel complex plasma membrane membrane membrane protein complex cation channel complex cellular anatomical entity transporter complex cell periphery transmembrane transporter complex T-tubule L-type voltage-gated calcium channel complex protein-containing complex plasma membrane protein complex sarcolemma voltage-gated calcium channel complex plasma membrane membrane membrane protein complex cation channel complex cellular anatomical entity transporter complex cell periphery transmembrane transporter complex T-tubule L-type voltage-gated calcium channel complex calcium channel complex monoatomic ion channel complex membrane-bounded organelle intracellular anatomical structure dense core granule intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle secretory granule secretory vesicle cytoplasm vesicle neuronal dense core vesicle extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space extracellular membrane-bounded organelle sarcoplasm endoplasmic reticulum sarcoplasmic reticulum
C [auth B]	Voltage-dependent L-type calcium channel subunit beta-1	calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity channel activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity channel activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity high voltage-gated calcium channel activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity	transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization calcium ion transport metal ion transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport calcium ion transmembrane transport transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization calcium ion transport metal ion transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport calcium ion transmembrane transport trans-synaptic signaling synaptic signaling regulation of biological process signaling anterograde trans-synaptic signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication cellular component organization cell junction organization neuromuscular junction development synapse organization cellular component organization or biogenesis regulation of calcium ion transport regulation of localization regulation of cellular process regulation of monoatomic ion transmembrane transport regulation of calcium ion transmembrane transport regulation of calcium ion transmembrane transport via high voltage-gated calcium channel calcium ion transmembrane transport via high voltage-gated calcium channel regulation of metal ion transport regulation of transport regulation of monoatomic ion transport regulation of transmembrane transport regulation of monoatomic cation transmembrane transport multicellular organismal process system process regulation of system process positive regulation of biological process muscle contraction muscle system process regulation of muscle system process regulation of muscle contraction positive regulation of muscle contraction positive regulation of multicellular organismal process regulation of multicellular organismal process cellular response to stimulus cellular response to nitrogen compound response to organic substance response to stimulus response to organonitrogen compound response to endogenous stimulus response to oxygen-containing compound response to nitrogen compound cellular response to amyloid-beta cellular response to oxygen-containing compound cellular response to endogenous stimulus cellular response to chemical stimulus cellular response to organonitrogen compound response to chemical cellular response to organic substance response to amyloid-beta	protein-containing complex plasma membrane protein complex sarcolemma voltage-gated calcium channel complex plasma membrane membrane membrane protein complex cation channel complex cellular anatomical entity transporter complex cell periphery transmembrane transporter complex T-tubule L-type voltage-gated calcium channel complex protein-containing complex plasma membrane protein complex sarcolemma voltage-gated calcium channel complex plasma membrane membrane membrane protein complex cation channel complex cellular anatomical entity transporter complex cell periphery transmembrane transporter complex T-tubule L-type voltage-gated calcium channel complex calcium channel complex monoatomic ion channel complex synapse cell junction

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR005821	Ion transport domain	Domain
A	IPR014873	Voltage-dependent calcium channel, alpha-1 subunit, IQ domain	Domain
A	IPR002077	Voltage-dependent calcium channel, alpha-1 subunit	Family
A	IPR005449	Voltage-dependent calcium channel, R-type, alpha-1 subunit	Family
A	IPR031649	Voltage-dependent L-type calcium channel, IQ-associated domain	Domain
A	IPR002048	EF-hand domain	Domain
A	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily
B [auth D]	IPR013608	VWA N-terminal	Domain
B [auth D]	IPR036465	von Willebrand factor A-like domain superfamily	Homologous Superfamily
B [auth D]	IPR013680	Voltage-dependent calcium channel, alpha-2/delta subunit, conserved region	Domain
B [auth D]	IPR002035	von Willebrand factor, type A	Domain
C [auth B]	IPR008145	Guanylate kinase/L-type calcium channel beta subunit	Domain
C [auth B]	IPR005443	Voltage-dependent calcium channel, L-type, beta-1 subunit	Family
C [auth B]	IPR001452	SH3 domain	Domain
C [auth B]	IPR036028	SH3-like domain superfamily	Homologous Superfamily
C [auth B]	IPR046937	Voltage-dependent L-type calcium channel subunit beta-1-4, N-terminal A domain	Domain
C [auth B]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
C [auth B]	IPR000584	Voltage-dependent calcium channel, L-type, beta subunit	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q15878	astrocytic tumor epilepsy lung adenocarcinoma malignant glioma Pick disease atypical teratoid rhabdoid tumor glioblastoma lung cancer medulloblastoma pilocytic astrocytoma endogenous depression large cell medulloblastoma malignant ependymoma oligodendroglioma
B [auth D]	Pharos: P54289	Brugada syndrome malignant colon neoplasm hypertensive disorder Pain short QT syndrome type 1 neuralgia lung carcinoma pituitary cancer malignant glioma psoriasis sarcoidosis atopic eczema breast cancer colonic neoplasm oligodendroglioma Brugada syndrome malignant colon neoplasm hypertensive disorder Pain short QT syndrome type 1 neuralgia lung carcinoma pituitary cancer malignant glioma psoriasis sarcoidosis atopic eczema breast cancer colonic neoplasm oligodendroglioma ductal breast carcinoma in situ glioblastoma invasive ductal breast carcinoma Pick disease postherpetic neuralgia malignant hyperthermia of anesthesia medulloblastoma ulcerative colitis atypical teratoid rhabdoid tumor breast carcinoma dermatomyositis osteosarcoma fibromyalgia large cell medulloblastoma pilocytic astrocytoma malignant ependymoma primitive neuroectodermal tumor malignant mesothelioma restless legs syndrome nasopharyngeal carcinoma astrocytic tumor benign colon neoplasm ovarian cancer generalized anxiety disorder pancreatic ductal adenocarcinoma
C [auth B]	Pharos: Q02641	colorectal cancer medulloblastoma malignant ependymoma osteosarcoma malignant glioma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B [auth D], C [auth B]	OPM	Transmembrane	Alpha-helical polytopic	Ion channel (VIC) superfamily	Voltage-sensitive calcium channel

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B [auth D], C [auth B]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B [auth D], C [auth B]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Calcium Ion-Selective	Ca_v2.3 R-type voltage-gated calcium channel in complex with the α2δ1 and β1 subunits, ligand-free (apo) state

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 R01GM133198.