7XLQ | pdb_00007xlq

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
Domain Annotation: CATH
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)
C [auth B]	ECH_1	e7xlqB1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: ECH_1	ECOD (develop294)
A	ECH_1	e7xlqA1	A: alpha bundles	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: ECH_1	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth D]	3.30.450.20	Alpha Beta	2-Layer Sandwich	Beta-Lactamase	PAS domain	CATH (utative)
B [auth D]	3.40.50.410	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	von Willebrand factor, type A domain	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
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
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
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 channel activity monoatomic ion transmembrane transporter activity transporter activity metal 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 channel 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 establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport 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 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 regulation of heart contraction regulation of system process 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 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 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 regulation of transmembrane transport regulation of monoatomic cation transmembrane transport cellular response to nitrogen compound cellular response to stimulus response to stimulus response to oxygen-containing compound response to nitrogen compound cellular response to amyloid-beta cellular response to oxygen-containing compound cellular response to chemical stimulus response to chemical 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 transporter complex cell periphery cellular anatomical structure 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 transporter complex cell periphery cellular anatomical structure 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 GABA-ergic synapse synapse cell junction presynaptic active zone membrane presynaptic membrane synaptic membrane presynapse plasma membrane region presynaptic active zone 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 channel activity monoatomic ion transmembrane transporter activity high voltage-gated calcium channel activity 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 channel activity monoatomic ion transmembrane transporter activity high voltage-gated calcium channel activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity channel regulator activity ion channel regulator activity calcium channel regulator activity molecular function regulator activity transporter regulator activity	transport monoatomic ion transmembrane transport establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport calcium ion transmembrane transport trans-synaptic signaling synaptic signaling transport monoatomic ion transmembrane transport establishment of localization calcium ion transport metal ion transport monoatomic cation transmembrane transport 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 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 nitrogen compound cellular response to stimulus response to stimulus response to oxygen-containing compound response to nitrogen compound cellular response to amyloid-beta cellular response to oxygen-containing compound cellular response to chemical stimulus response to chemical 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 transporter complex cell periphery cellular anatomical structure 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 transporter complex cell periphery cellular anatomical structure transmembrane transporter complex T-tubule L-type voltage-gated calcium channel complex calcium channel complex monoatomic ion channel complex synapse cell junction
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 channel 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 establishment of localization inorganic cation import across plasma membrane calcium ion transport metal ion transport monoatomic cation transmembrane transport transmembrane transport localization calcium ion import across plasma membrane inorganic ion import across plasma membrane monoatomic ion transport import into cell calcium ion transmembrane import into cytosol transport monoatomic ion transmembrane transport import across plasma membrane establishment of localization inorganic cation import across plasma membrane calcium ion transport metal ion transport monoatomic cation transmembrane transport 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	cellular anatomical structure synapse cell junction 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 cellular anatomical structure synapse cell junction 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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth D]	IPR013608	VWA N-terminal	Domain
B [auth D]	IPR036465	von Willebrand factor A-like domain superfamily	Homologous Superfamily
B [auth D]	IPR051173	Voltage-dependent calcium channel subunit alpha-2/delta	Family
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
A	IPR005821	Ion transport domain	Domain
A	IPR014873	Voltage-dependent calcium channel, alpha-1 subunit, IQ domain	Domain
A	IPR050599	Voltage-dependent calcium channel alpha-1 subunit	Family
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

Pharos: Disease Associations Pharos Homepage Annotation

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

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