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Search results 301 to 400 out of 469 for Cav3

0.07s
Type Details Score
Publication        
First Author: Mouse Genome Informatics Scientific Curators
Year: 2002
Title: Mouse Genome Informatics Computational Sequence to Gene Associations
Publication      
First Author: Mouse Genome Informatics Scientific Curators
Year: 2010
Journal: Database Download
Title: Mouse Microarray Data Integration in Mouse Genome Informatics, the Affymetrix GeneChip Mouse Genome U74 Array Platform (A, B, C v2).
Publication      
First Author: MGI Genome Annotation Group and UniGene Staff
Year: 2015
Journal: Database Download
Title: MGI-UniGene Interconnection Effort
Publication        
First Author: Marc Feuermann, Huaiyu Mi, Pascale Gaudet, Dustin Ebert, Anushya Muruganujan, Paul Thomas
Year: 2010
Title: Annotation inferences using phylogenetic trees
Publication      
First Author: Mouse Genome Database and National Center for Biotechnology Information
Year: 2000
Journal: Database Release
Title: Entrez Gene Load
Publication      
First Author: Allen Institute for Brain Science
Year: 2004
Journal: Allen Institute
Title: Allen Brain Atlas: mouse riboprobes
Publication      
First Author: Mouse Genome Informatics Scientific Curators
Year: 2009
Journal: Database Download
Title: Mouse Microarray Data Integration in Mouse Genome Informatics, the Affymetrix GeneChip Mouse Gene 1.0 ST Array Platform
Publication      
First Author: Mouse Genome Informatics (MGI) and The National Center for Biotechnology Information (NCBI)
Year: 2010
Journal: Database Download
Title: Consensus CDS project
Publication      
First Author: Mouse Genome Informatics Group
Year: 2003
Journal: Database Procedure
Title: Automatic Encodes (AutoE) Reference
Publication      
First Author: Bairoch A
Year: 1999
Journal: Database Release
Title: SWISS-PROT Annotated protein sequence database
Publication        
First Author: Mouse Genome Informatics Scientific Curators
Year: 2005
Title: Obtaining and Loading Genome Assembly Coordinates from Ensembl Annotations
Publication      
First Author: Mouse Genome Informatics
Year: 2010
Journal: Database Release
Title: Protein Ontology Association Load.
Publication        
First Author: Mouse Genome Informatics Scientific Curators
Year: 2005
Title: Obtaining and loading genome assembly coordinates from NCBI annotations
Publication      
First Author: Mouse Genome Informatics Scientific Curators
Year: 2009
Journal: Database Download
Title: Mouse Microarray Data Integration in Mouse Genome Informatics, the Affymetrix GeneChip Mouse Genome 430 2.0 Array Platform
Allele
Name: caveolin 3; targeted mutation 1, Michael P Lisanti
Allele Type: Targeted
Attribute String: Null/knockout
Allele
Name: caveolin 3; targeted mutation 1, Tateki Kikuchi
Allele Type: Targeted
Attribute String: Null/knockout
Allele
Name: caveolin 3; endonuclease-mediated mutation 1, Shanghai Model Organisms Center
Allele Type: Endonuclease-mediated
Attribute String: Null/knockout
DO Term
Strain
Attribute String: coisogenic, endonuclease-mediated mutation, mutant strain
DO Term
Allele
Name: transgene insertion 1, Yoshihide Sunada
Allele Type: Transgenic
Attribute String: Inserted expressed sequence
Gene
Type: gene
Organism: human
Publication
First Author: Kawakami E
Year: 2013
Journal: PLoS One
Title: Local applications of myostatin-siRNA with atelocollagen increase skeletal muscle mass and recovery of muscle function.
Volume: 8
Issue: 5
Pages: e64719
Genotype
Symbol: Tg(Ckmm-Cav3)1Ysu/?
Background: involves: C57BL/Slc * DBA/Slc
Zygosity: ot
Has Mutant Allele: true
Publication
First Author: Yang S
Year: 2016
Journal: Cell Rep
Title: β-Arrestin-Dependent Dopaminergic Regulation of Calcium Channel Activity in the Axon Initial Segment.
Volume: 16
Issue: 6
Pages: 1518-1526
Publication  
First Author: Zhan X
Year: 2024
Journal: J Neurosci
Title: Calcium-Dependent Regulation of Neuronal Excitability Is Rescued in Fragile X Syndrome by a Tat-Conjugated N-Terminal Fragment of FMRP.
Volume: 44
Issue: 21
Publication  
First Author: Papazoglou A
Year: 2017
Journal: Data Brief
Title: Gender specific hippocampal whole genome transcriptome data from mice lacking the Cav2.3 R-type or Cav3.2 T-type voltage-gated calcium channel.
Volume: 12
Pages: 81-86
Publication
First Author: El-Yazbi AF
Year: 2006
Journal: Am J Physiol Gastrointest Liver Physiol
Title: Impact of caveolin-1 knockout on NANC relaxation in circular muscles of the mouse small intestine compared with longitudinal muscles.
Volume: 290
Issue: 2
Pages: G394-403
Publication
First Author: Cazade M
Year: 2014
Journal: Pflugers Arch
Title: 5,6-EET potently inhibits T-type calcium channels: implication in the regulation of the vascular tone.
Volume: 466
Issue: 9
Pages: 1759-68
Publication
First Author: Valasek MA
Year: 2005
Journal: J Biol Chem
Title: Caveolin-1 is not required for murine intestinal cholesterol transport.
Volume: 280
Issue: 30
Pages: 28103-9
Publication
First Author: Lundt A
Year: 2019
Journal: BMC Res Notes
Title: Gender specific click and tone burst evoked ABR datasets from mice lacking the Cav3.2 T-type voltage-gated calcium channel.
Volume: 12
Issue: 1
Pages: 157
Publication
First Author: Taniguchi T
Year: 2016
Journal: PLoS One
Title: PTRF/Cavin-1 Deficiency Causes Cardiac Dysfunction Accompanied by Cardiomyocyte Hypertrophy and Cardiac Fibrosis.
Volume: 11
Issue: 9
Pages: e0162513
Publication
First Author: Zhang Y
Year: 2011
Journal: Cardiovasc Res
Title: MG53 participates in ischaemic postconditioning through the RISK signalling pathway.
Volume: 91
Issue: 1
Pages: 108-15
Publication  
First Author: Binda F
Year: 2016
Journal: Sci Rep
Title: Inhibition promotes long-term potentiation at cerebellar excitatory synapses.
Volume: 6
Pages: 33561
Publication
First Author: Yoo KH
Year: 2014
Journal: Dev Biol
Title: The STAT5-regulated miR-193b locus restrains mammary stem and progenitor cell activity and alveolar differentiation.
Volume: 395
Issue: 2
Pages: 245-54
Publication  
First Author: Tian C
Year: 2021
Journal: Hear Res
Title: CACHD1-deficient mice exhibit hearing and balance deficits associated with a disruption of calcium homeostasis in the inner ear.
Volume: 409
Pages: 108327
Publication
First Author: Nixon SJ
Year: 2007
Journal: J Cell Sci
Title: Caveolin-1 is required for lateral line neuromast and notochord development.
Volume: 120
Issue: Pt 13
Pages: 2151-61
Protein Domain
Type: Family
Description: Ca2+ ions are unique in that they not only carry charge but they are also the most widely used of diffusible second messengers. Voltage-dependent Ca2+ channels (VDCC) are a family of molecules that allow cells to couple electrical activity to intracellular Ca2+ signalling. The opening and closing of these channels by depolarizing stimuli, such as action potentials, allows Ca2+ ions to enter neurons down a steep electrochemical gradient, producing transient intracellular Ca2+ signals. Many of the processes that occur in neurons, including transmitter release, gene transcription and metabolism are controlled by Ca2+ influx occurring simultaneously at different cellular locales. The pore is formed by the alpha-1 subunit which incorporates the conduction pore, the voltage sensor and gating apparatus, and the known sites of channel regulation by second messengers, drugs, and toxins []. The activity of this pore is modulated by four tightly-coupled subunits: an intracellular beta subunit; a transmembrane gamma subunit; and a disulphide-linked complex of alpha-2 and delta subunits, which are proteolytically cleaved from the same gene product. Properties of the protein including gating voltage-dependence, G protein modulation and kinase susceptibility can be influenced by these subunits.Voltage-gated calcium channels are classified as T, L, N, P, Q and R, and are distinguished by their sensitivity to pharmacological blocks, single-channel conductance kinetics, and voltage-dependence. On the basis of their voltage activation properties, the voltage-gated calcium classes can be further divided into two broad groups: the low (T-type) and high (L, N, P, Q and R-type) threshold-activated channels.The alpha-1 subunit forms the pore for the import of extracellular calcium ions and, though regulated by the other subunits, is primarily responsible for the pharmacological properties of the channel []. It shares sequence characteristics with all voltage-dependent cation channels, and exploits the same 6-helix bundle structural motif - in both sodium and calcium channels, this motif is repeated 4 times within the sequence to give a 24-helix bundle. Within each of these repeats, 5 of the transmembrane (TM) segments (S1, S2, S3, S5, S6) are hydrophobic, while the other (S4) is positively charged and serves as the voltage-sensor. Several genes encoding alpha-1 subunits have been identified and can be divided into three functionally distinct families based on sequence homology - Cav1, Cav2 and Cav3 []. The Cav1 family forms channels mediating L-type calcium currents, the Cav2 family mediates P/Q-, N-, and R-type calcium currents, while the Cav3 family mediates T-type calcium currents.This entry represents all types of alpha-1 subunit.
Protein
Organism: Mus musculus/domesticus
Length: 2381  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 585  
Fragment?: true
Publication  
First Author: Lewis KJ
Year: 2021
Journal: Bone
Title: Estrogen depletion on In vivo osteocyte calcium signaling responses to mechanical loading.
Volume: 152
Pages: 116072
Publication  
First Author: Catterall WA
Year: 2000
Journal: Annu Rev Cell Dev Biol
Title: Structure and regulation of voltage-gated Ca2+ channels.
Volume: 16
Pages: 521-55
Publication
First Author: Ertel EA
Year: 2000
Journal: Neuron
Title: Nomenclature of voltage-gated calcium channels.
Volume: 25
Issue: 3
Pages: 533-5
Protein
Organism: Mus musculus/domesticus
Length: 513  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 2365  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 89  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 138  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 147  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 229  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 111  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 114  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 1901  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 113  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 110  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 102  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 255  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 247  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 541  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 2359  
Fragment?: false
Publication
First Author: Triggle DJ
Year: 2003
Journal: Cell Mol Neurobiol
Title: 1,4-Dihydropyridines as calcium channel ligands and privileged structures.
Volume: 23
Issue: 3
Pages: 293-303
Publication
First Author: Striessnig J
Year: 2004
Journal: Biochem Biophys Res Commun
Title: L-type Ca2+ channels in Ca2+ channelopathies.
Volume: 322
Issue: 4
Pages: 1341-6
Publication
First Author: Turner TJ
Year: 1993
Journal: Proc Natl Acad Sci U S A
Title: Multiple Ca2+ channel types coexist to regulate synaptosomal neurotransmitter release.
Volume: 90
Issue: 20
Pages: 9518-22
Publication
First Author: Hirning LD
Year: 1988
Journal: Science
Title: Dominant role of N-type Ca2+ channels in evoked release of norepinephrine from sympathetic neurons.
Volume: 239
Issue: 4835
Pages: 57-61
Publication
First Author: Luebke JI
Year: 1993
Journal: Neuron
Title: Multiple calcium channel types control glutamatergic synaptic transmission in the hippocampus.
Volume: 11
Issue: 5
Pages: 895-902
Publication
First Author: Snutch TP
Year: 2005
Journal: NeuroRx
Title: Targeting chronic and neuropathic pain: the N-type calcium channel comes of age.
Volume: 2
Issue: 4
Pages: 662-70
Publication
First Author: Gao S
Year: 2021
Journal: Nature
Title: Structure of human Cav2.2 channel blocked by the painkiller ziconotide.
Volume: 596
Issue: 7870
Pages: 143-147
Publication
First Author: Diriong S
Year: 1995
Journal: Genomics
Title: Chromosomal localization of the human genes for alpha 1A, alpha 1B, and alpha 1E voltage-dependent Ca2+ channel subunits.
Volume: 30
Issue: 3
Pages: 605-9
Publication
First Author: Randall AD
Year: 1997
Journal: Neuropharmacology
Title: Contrasting biophysical and pharmacological properties of T-type and R-type calcium channels.
Volume: 36
Issue: 7
Pages: 879-93
Publication
First Author: Foehring RC
Year: 2000
Journal: J Neurophysiol
Title: Unique properties of R-type calcium currents in neocortical and neostriatal neurons.
Volume: 84
Issue: 5
Pages: 2225-36
Publication
First Author: Gasparini S
Year: 2001
Journal: J Neurosci
Title: Presynaptic R-type calcium channels contribute to fast excitatory synaptic transmission in the rat hippocampus.
Volume: 21
Issue: 22
Pages: 8715-21
Publication
First Author: Tanabe T
Year: 1987
Journal: Nature
Title: Primary structure of the receptor for calcium channel blockers from skeletal muscle.
Volume: 328
Issue: 6128
Pages: 313-8
Publication
First Author: Soldatov NM
Year: 1997
Journal: J Biol Chem
Title: Molecular structures involved in L-type calcium channel inactivation. Role of the carboxyl-terminal region encoded by exons 40-42 in alpha1C subunit in the kinetics and Ca2+ dependence of inactivation.
Volume: 272
Issue: 6
Pages: 3560-6
Publication
First Author: Wei X
Year: 1996
Journal: Receptors Channels
Title: Increase in Ca2+ channel expression by deletions at the amino terminus of the cardiac alpha 1C subunit.
Volume: 4
Issue: 4
Pages: 205-15
Publication
First Author: Takimoto K
Year: 1997
Journal: J Mol Cell Cardiol
Title: Distribution, splicing and glucocorticoid-induced expression of cardiac alpha 1C and alpha 1D voltage-gated Ca2+ channel mRNAs.
Volume: 29
Issue: 11
Pages: 3035-42
Publication
First Author: Koschak A
Year: 2001
Journal: J Biol Chem
Title: alpha 1D (Cav1.3) subunits can form l-type Ca2+ channels activating at negative voltages.
Volume: 276
Issue: 25
Pages: 22100-6
Publication
First Author: Moser T
Year: 2000
Journal: Proc Natl Acad Sci U S A
Title: Kinetics of exocytosis and endocytosis at the cochlear inner hair cell afferent synapse of the mouse.
Volume: 97
Issue: 2
Pages: 883-8
Publication
First Author: Magee JC
Year: 1996
Journal: J Neurophysiol
Title: Dihydropyridine-sensitive, voltage-gated Ca2+ channels contribute to the resting intracellular Ca2+ concentration of hippocampal CA1 pyramidal neurons.
Volume: 76
Issue: 5
Pages: 3460-70
Publication
First Author: Pinggera A
Year: 2017
Journal: Hum Mol Genet
Title: New gain-of-function mutation shows CACNA1D as recurrently mutated gene in autism spectrum disorders and epilepsy.
Volume: 26
Issue: 15
Pages: 2923-2932
Protein Domain
Type: Family
Description: Ca2+ ions are unique in that they not only carry charge but they are also the most widely used of diffusible second messengers. Voltage-dependent Ca2+ channels (VDCC) are a family of molecules that allow cells to couple electrical activity to intracellular Ca2+ signalling. The opening and closing of these channels by depolarizing stimuli, such as action potentials, allows Ca2+ ions to enter neurons down a steep electrochemical gradient, producing transient intracellular Ca2+ signals. Many of the processes that occur in neurons, including transmitter release, gene transcription and metabolism are controlled by Ca2+ influx occurring simultaneously at different cellular locales. The pore is formed by the alpha-1 subunit which incorporates the conduction pore, the voltage sensor and gating apparatus, and the known sites of channel regulation by second messengers, drugs, and toxins []. The activity of this pore is modulated by four tightly-coupled subunits: an intracellular beta subunit; a transmembrane gamma subunit; and a disulphide-linked complex of alpha-2 and delta subunits, which are proteolytically cleaved from the same gene product. Properties of the protein including gating voltage-dependence, G protein modulation and kinase susceptibility can be influenced by these subunits.Voltage-gated calcium channels are classified as T, L, N, P, Q and R, and are distinguished by their sensitivity to pharmacological blocks, single-channel conductance kinetics, and voltage-dependence. On the basis of their voltage activation properties, the voltage-gated calcium classes can be further divided into two broad groups: the low (T-type) and high (L, N, P, Q and R-type) threshold-activated channels.The alpha-1 subunit forms the pore for the import of extracellular calcium ions and, though regulated by the other subunits, is primarily responsible for the pharmacological properties of the channel []. It shares sequence characteristics with all voltage-dependent cation channels, and exploits the same 6-helix bundle structural motif - in both sodium and calcium channels, this motif is repeated 4 times within the sequence to give a 24-helix bundle. Within each of these repeats, 5 of the transmembrane (TM) segments (S1, S2, S3, S5, S6) are hydrophobic, while the other (S4) is positively charged and serves as the voltage-sensor. Several genes encoding alpha-1 subunits have been identified and can be divided into three functionally distinct families based on sequence homology - Cav1, Cav2 and Cav3 []. The Cav1 family forms channels mediating L-type calcium currents, the Cav2 family mediates P/Q-, N-, and R-type calcium currents, while the Cav3 family mediates T-type calcium currents.L-type calcium channels are formed from alpha-1S, alpha-1C, alpha-1D, and alpha-1F subunits. They are widely distributed and are well characterised in the heart, smooth and skeletal muscle, and some neurons. Their primary functions are in both excitation-contraction and excitation-secretion coupling. In skeletal muscle, the L-type calcium channels act as a voltage sensor for excitation-contraction coupling, and in cardiac muscle, they provide a pathway for calcium influx. Mutations affecting L-type channel subunits result in three diseases: (1) muscular dystrophy, which is characterised by a lack of functional skeletal muscle; (2) hypokalaemic periodic paralysis, which is characterised by episodic attacks of skeletal muscle weakness; and (3) malignant hyperthermia, which is the main cause of death due to anaesthesia. 1,4-dihydropyridines act as antagonists of these channels [, ].
Protein Domain
Type: Family
Description: Ca2+ ions are unique in that they not only carry charge but they are also the most widely used of diffusible second messengers. Voltage-dependent Ca2+ channels (VDCC) are a family of molecules that allow cells to couple electrical activity to intracellular Ca2+ signalling. The opening and closing of these channels by depolarizing stimuli, such as action potentials, allows Ca2+ ions to enter neurons down a steep electrochemical gradient, producing transient intracellular Ca2+ signals. Many of the processes that occur in neurons, including transmitter release, gene transcription and metabolism are controlled by Ca2+ influx occurring simultaneously at different cellular locales. The pore is formed by the alpha-1 subunit which incorporates the conduction pore, the voltage sensor and gating apparatus, and the known sites of channel regulation by second messengers, drugs, and toxins []. The activity of this pore is modulated by four tightly-coupled subunits: an intracellular beta subunit; a transmembrane gamma subunit; and a disulphide-linked complex of alpha-2 and delta subunits, which are proteolytically cleaved from the same gene product. Properties of the protein including gating voltage-dependence, G protein modulation and kinase susceptibility can be influenced by these subunits.Voltage-gated calcium channels are classified as T, L, N, P, Q and R, and are distinguished by their sensitivity to pharmacological blocks, single-channel conductance kinetics, and voltage-dependence. On the basis of their voltage activation properties, the voltage-gated calcium classes can be further divided into two broad groups: the low (T-type) and high (L, N, P, Q and R-type) threshold-activated channels.The alpha-1 subunit forms the pore for the import of extracellular calcium ions and, though regulated by the other subunits, is primarily responsible for the pharmacological properties of the channel []. It shares sequence characteristics with all voltage-dependent cation channels, and exploits the same 6-helix bundle structural motif - in both sodium and calcium channels, this motif is repeated 4 times within the sequence to give a 24-helix bundle. Within each of these repeats, 5 of the transmembrane (TM) segments (S1, S2, S3, S5, S6) are hydrophobic, while the other (S4) is positively charged and serves as the voltage-sensor. Several genes encoding alpha-1 subunits have been identified and can be divided into three functionally distinct families based on sequence homology - Cav1, Cav2 and Cav3 []. The Cav1 family forms channels mediating L-type calcium currents, the Cav2 family mediates P/Q-, N-, and R-type calcium currents, while the Cav3 family mediates T-type calcium currents.N-type calcium channels are composed from alpha-1B subunits. Experiments employing CTX have demonstrated the physiological importance of the N-type calcium channels in the nervous system, where they have a significant developmental role in the migration of immature neurons before the establishment of their synaptic circuit. In peripheral neurons, such as autonomic neurons, motor neurons and spinal cord neurons, they have also been shown to be critically involved in the release of neurotransmitters, including glutamate [], gamma-amino-butyric acid, acetylcholine, dopamine []and norepinephrine []. N-type calcium channels are promising targets for the development of drugs to relieve chronic and neuropathic pain []. Recently, it has been shown to be specifically blocked by ziconotide [].
Protein Domain
Type: Family
Description: Ca2+ ions are unique in that they not only carry charge but they are also the most widely used of diffusible second messengers. Voltage-dependent Ca2+ channels (VDCC) are a family of molecules that allow cells to couple electrical activity to intracellular Ca2+ signalling. The opening and closing of these channels by depolarizing stimuli, such as action potentials, allows Ca2+ ions to enter neurons down a steep electrochemical gradient, producing transient intracellular Ca2+ signals. Many of the processes that occur in neurons, including transmitter release, gene transcription and metabolism are controlled by Ca2+ influx occurring simultaneously at different cellular locales. The pore is formed by the alpha-1 subunit which incorporates the conduction pore, the voltage sensor and gating apparatus, and the known sites of channel regulation by second messengers, drugs, and toxins []. The activity of this pore is modulated by four tightly-coupled subunits: an intracellular beta subunit; a transmembrane gamma subunit; and a disulphide-linked complex of alpha-2 and delta subunits, which are proteolytically cleaved from the same gene product. Properties of the protein including gating voltage-dependence, G protein modulation and kinase susceptibility can be influenced by these subunits.Voltage-gated calcium channels are classified as T, L, N, P, Q and R, and are distinguished by their sensitivity to pharmacological blocks, single-channel conductance kinetics, and voltage-dependence. On the basis of their voltage activation properties, the voltage-gated calcium classes can be further divided into two broad groups: the low (T-type) and high (L, N, P, Q and R-type) threshold-activated channels.The alpha-1 subunit forms the pore for the import of extracellular calcium ions and, though regulated by the other subunits, is primarily responsible for the pharmacological properties of the channel []. It shares sequence characteristics with all voltage-dependent cation channels, and exploits the same 6-helix bundle structural motif - in both sodium and calcium channels, this motif is repeated 4 times within the sequence to give a 24-helix bundle. Within each of these repeats, 5 of the transmembrane (TM) segments (S1, S2, S3, S5, S6) are hydrophobic, while the other (S4) is positively charged and serves as the voltage-sensor. Several genes encoding alpha-1 subunits have been identified and can be divided into three functionally distinct families based on sequence homology - Cav1, Cav2 and Cav3 []. The Cav1 family forms channels mediating L-type calcium currents, the Cav2 family mediates P/Q-, N-, and R-type calcium currents, while the Cav3 family mediates T-type calcium currents.Several genes encoding alpha-1 subunits have been identified, each forming a distinct electrophysiological channel. P- and Q-type channels are formed from alpha-1A subunits and function in transmitter release []. P-type channels are prevalent in cerebellar Purkinje cells, but are also expressed in many central and peripheral neurons, such as the spinal cord and visual cortex. By contrast, Q-type channels are found in cerebellar granule neurones and the hippocampus. Different mutations in the alpha-1A subunit can produce the following human diseases: episodic ataxia type-2familial hemiplegic migrainespinocerebellar ataxia type-6All 3 diseases result in cerebellar atrophy, but they differ in the extent and rate of progression of neuronal degeneration.
Protein Domain
Type: Family
Description: Ca2+ ions are unique in that they not only carry charge but they are also the most widely used of diffusible second messengers. Voltage-dependent Ca2+ channels (VDCC) are a family of molecules that allow cells to couple electrical activity to intracellular Ca2+ signalling. The opening and closing of these channels by depolarizing stimuli, such as action potentials, allows Ca2+ ions to enter neurons down a steep electrochemical gradient, producing transient intracellular Ca2+ signals. Many of the processes that occur in neurons, including transmitter release, gene transcription and metabolism are controlled by Ca2+ influx occurring simultaneously at different cellular locales. The pore is formed by the alpha-1 subunit which incorporates the conduction pore, the voltage sensor and gating apparatus, and the known sites of channel regulation by second messengers, drugs, and toxins []. The activity of this pore is modulated by four tightly-coupled subunits: an intracellular beta subunit; a transmembrane gamma subunit; and a disulphide-linked complex of alpha-2 and delta subunits, which are proteolytically cleaved from the same gene product. Properties of the protein including gating voltage-dependence, G protein modulation and kinase susceptibility can be influenced by these subunits.Voltage-gated calcium channels are classified as T, L, N, P, Q and R, and are distinguished by their sensitivity to pharmacological blocks, single-channel conductance kinetics, and voltage-dependence. On the basis of their voltage activation properties, the voltage-gated calcium classes can be further divided into two broad groups: the low (T-type) and high (L, N, P, Q and R-type) threshold-activated channels.The alpha-1 subunit forms the pore for the import of extracellular calcium ions and, though regulated by the other subunits, is primarily responsible for the pharmacological properties of the channel []. It shares sequence characteristics with all voltage-dependent cation channels, and exploits the same 6-helix bundle structural motif - in both sodium and calcium channels, this motif is repeated 4 times within the sequence to give a 24-helix bundle. Within each of these repeats, 5 of the transmembrane (TM) segments (S1, S2, S3, S5, S6) are hydrophobic, while the other (S4) is positively charged and serves as the voltage-sensor. Several genes encoding alpha-1 subunits have been identified and can be divided into three functionally distinct families based on sequence homology - Cav1, Cav2 and Cav3 []. The Cav1 family forms channels mediating L-type calcium currents, the Cav2 family mediates P/Q-, N-, and R-type calcium currents, while the Cav3 family mediates T-type calcium currents.R-type calcium channels are composed of alpha-1E subunits and are found in a variety of neuronal populations, such as cerebellar granule neurons and dendrites of hippocampal pyrimidal neurons []. They are believed to play an important role in the body's natural communication network, where they contribute to the regulation of brain function by synaptic integration []. Their hypolarised inactivation range and rapid kinetics of inactivation make R-type channels more suited to providing a transient surge of Ca2+ influx [].
Protein Domain
Type: Family
Description: Ca2+ ions are unique in that they not only carry charge but they are also the most widely used of diffusible second messengers. Voltage-dependent Ca2+ channels (VDCC) are a family of molecules that allow cells to couple electrical activity to intracellular Ca2+ signalling. The opening and closing of these channels by depolarizing stimuli, such as action potentials, allows Ca2+ ions to enter neurons down a steep electrochemical gradient, producing transient intracellular Ca2+ signals. Many of the processes that occur in neurons, including transmitter release, gene transcription and metabolism are controlled by Ca2+ influx occurring simultaneously at different cellular locales. The pore is formed by the alpha-1 subunit which incorporates the conduction pore, the voltage sensor and gating apparatus, and the known sites of channel regulation by second messengers, drugs, and toxins []. The activity of this pore is modulated by four tightly-coupled subunits: an intracellular beta subunit; a transmembrane gamma subunit; and a disulphide-linked complex of alpha-2 and delta subunits, which are proteolytically cleaved from the same gene product. Properties of the protein including gating voltage-dependence, G protein modulation and kinase susceptibility can be influenced by these subunits.Voltage-gated calcium channels are classified as T, L, N, P, Q and R, and are distinguished by their sensitivity to pharmacological blocks, single-channel conductance kinetics, and voltage-dependence. On the basis of their voltage activation properties, the voltage-gated calcium classes can be further divided into two broad groups: the low (T-type) and high (L, N, P, Q and R-type) threshold-activated channels.The alpha-1 subunit forms the pore for the import of extracellular calcium ions and, though regulated by the other subunits, is primarily responsible for the pharmacological properties of the channel []. It shares sequence characteristics with all voltage-dependent cation channels, and exploits the same 6-helix bundle structural motif - in both sodium and calcium channels, this motif is repeated 4 times within the sequence to give a 24-helix bundle. Within each of these repeats, 5 of the transmembrane (TM) segments (S1, S2, S3, S5, S6) are hydrophobic, while the other (S4) is positively charged and serves as the voltage-sensor. Several genes encoding alpha-1 subunits have been identified and can be divided into three functionally distinct families based on sequence homology - Cav1, Cav2 and Cav3 []. The Cav1 family forms channels mediating L-type calcium currents, the Cav2 family mediates P/Q-, N-, and R-type calcium currents, while the Cav3 family mediates T-type calcium currents.T-type calcium channels exhibit unique voltage-dependent kinetics, small single channel conductance, rapid inactivation, slow deactivation and a relatively high permeability to calcium []. They are primarily responsible for rebound burst firing in central neurons and are implicated in normal brain functions, such as slow wave sleep, and in diseased states, such as epilepsy []. They also play an important role in hormone secretion []and smooth muscle excitability [].
Protein Domain
Type: Family
Description: Ca2+ ions are unique in that they not only carry charge but they are also the most widely used of diffusible second messengers. Voltage-dependent Ca2+ channels (VDCC) are a family of molecules that allow cells to couple electrical activity to intracellular Ca2+ signalling. The opening and closing of these channels by depolarizing stimuli, such as action potentials, allows Ca2+ ions to enter neurons down a steep electrochemical gradient, producing transient intracellular Ca2+ signals. Many of the processes that occur in neurons, including transmitter release, gene transcription and metabolism are controlled by Ca2+ influx occurring simultaneously at different cellular locales. The pore is formed by the alpha-1 subunit which incorporates the conduction pore, the voltage sensor and gating apparatus, and the known sites of channel regulation by second messengers, drugs, and toxins []. The activity of this pore is modulated by four tightly-coupled subunits: an intracellular beta subunit; a transmembrane gamma subunit; and a disulphide-linked complex of alpha-2 and delta subunits, which are proteolytically cleaved from the same gene product. Properties of the protein including gating voltage-dependence, G protein modulation and kinase susceptibility can be influenced by these subunits.Voltage-gated calcium channels are classified as T, L, N, P, Q and R, and are distinguished by their sensitivity to pharmacological blocks, single-channel conductance kinetics, and voltage-dependence. On the basis of their voltage activation properties, the voltage-gated calcium classes can be further divided into two broad groups: the low (T-type) and high (L, N, P, Q and R-type) threshold-activated channels.The alpha-1 subunit forms the pore for the import of extracellular calcium ions and, though regulated by the other subunits, is primarily responsible for the pharmacological properties of the channel []. It shares sequence characteristics with all voltage-dependent cation channels, and exploits the same 6-helix bundle structural motif - in both sodium and calcium channels, this motif is repeated 4 times within the sequence to give a 24-helix bundle. Within each of these repeats, 5 of the transmembrane (TM) segments (S1, S2, S3, S5, S6) are hydrophobic, while the other (S4) is positively charged and serves as the voltage-sensor. Several genes encoding alpha-1 subunits have been identified and can be divided into three functionally distinct families based on sequence homology - Cav1, Cav2 and Cav3 []. The Cav1 family forms channels mediating L-type calcium currents, the Cav2 family mediates P/Q-, N-, and R-type calcium currents, while the Cav3 family mediates T-type calcium currents.L-type calcium channels are formed from alpha-1S, alpha-1C, alpha-1D, and alpha-1F subunits. They are widely distributed and are well characterised in the heart, smooth and skeletal muscle, and some neurons. Their primary functions are in both excitation-contraction and excitation-secretion coupling. In skeletal muscle, the L-type calcium channels act as a voltage sensor for excitation-contraction coupling, and in cardiac muscle, they provide a pathway for calcium influx. Mutations affecting L-type channel subunits result in three diseases: (1) muscular dystrophy, which is characterised by a lack of functional skeletal muscle; (2) hypokalaemic periodic paralysis, which is characterised by episodic attacks of skeletal muscle weakness; and (3) malignant hyperthermia, which is the main cause of death due to anaesthesia. 1,4-dihydropyridines act as antagonists of these channels [, ].Alpha-1C subunits can be found in a number of excitable tissues, as well as the heart and lungs []. The variability in the C-terminal region of the alpha-1C subunit generated by alternative splicing influences the kinetics, calcium- and voltage-dependence of L-type channels []. The N terminus is also a site of significant structural diversity [].
Protein Domain
Type: Family
Description: Ca2+ ions are unique in that they not only carry charge but they are also the most widely used of diffusible second messengers. Voltage-dependent Ca2+ channels (VDCC) are a family of molecules that allow cells to couple electrical activity to intracellular Ca2+ signalling. The opening and closing of these channels by depolarizing stimuli, such as action potentials, allows Ca2+ ions to enter neurons down a steep electrochemical gradient, producing transient intracellular Ca2+ signals. Many of the processes that occur in neurons, including transmitter release, gene transcription and metabolism are controlled by Ca2+ influx occurring simultaneously at different cellular locales. The pore is formed by the alpha-1 subunit which incorporates the conduction pore, the voltage sensor and gating apparatus, and the known sites of channel regulation by second messengers, drugs, and toxins []. The activity of this pore is modulated by four tightly-coupled subunits: an intracellular beta subunit; a transmembrane gamma subunit; and a disulphide-linked complex of alpha-2 and delta subunits, which are proteolytically cleaved from the same gene product. Properties of the protein including gating voltage-dependence, G protein modulation and kinase susceptibility can be influenced by these subunits.Voltage-gated calcium channels are classified as T, L, N, P, Q and R, and are distinguished by their sensitivity to pharmacological blocks, single-channel conductance kinetics, and voltage-dependence. On the basis of their voltage activation properties, the voltage-gated calcium classes can be further divided into two broad groups: the low (T-type) and high (L, N, P, Q and R-type) threshold-activated channels.The alpha-1 subunit forms the pore for the import of extracellular calcium ions and, though regulated by the other subunits, is primarily responsible for the pharmacological properties of the channel []. It shares sequence characteristics with all voltage-dependent cation channels, and exploits the same 6-helix bundle structural motif - in both sodium and calcium channels, this motif is repeated 4 times within the sequence to give a 24-helix bundle. Within each of these repeats, 5 of the transmembrane (TM) segments (S1, S2, S3, S5, S6) are hydrophobic, while the other (S4) is positively charged and serves as the voltage-sensor. Several genes encoding alpha-1 subunits have been identified and can be divided into three functionally distinct families based on sequence homology - Cav1, Cav2 and Cav3 []. The Cav1 family forms channels mediating L-type calcium currents, the Cav2 family mediates P/Q-, N-, and R-type calcium currents, while the Cav3 family mediates T-type calcium currents.L-type calcium channels are formed from alpha-1S, alpha-1C, alpha-1D, and alpha-1F subunits. They are widely distributed and are well characterised in the heart, smooth and skeletal muscle, and some neurons. Their primary functions are in both excitation-contraction and excitation-secretion coupling. In skeletal muscle, the L-type calcium channels act as a voltage sensor for excitation-contraction coupling, and in cardiac muscle, they provide a pathway for calcium influx. Mutations affecting L-type channel subunits result in three diseases: (1) muscular dystrophy, which is characterised by a lack of functional skeletal muscle; (2) hypokalaemic periodic paralysis, which is characterised by episodic attacks of skeletal muscle weakness; and (3) malignant hyperthermia, which is the main cause of death due to anaesthesia. 1,4-dihydropyridines act as antagonists of these channels [, ].Alpha-1D subunits allow cells to slowly inactivate voltage-gated Ca2+ influx to weak depolarisations []. This property allows them to participate in important physiological functions, such as tonic neurotransmitter release in cochlear inner hair cells []. In addition, these properties make them ideally suited to contribute to subthreshold Ca2+ signalling, for example in hippocampal pyramidal cells []. Mutations in this channel have been associated with autism spectrum disorders and epilepsy [].
Protein Domain
Type: Family
Description: Ca2+ ions are unique in that they not only carry charge but they are also the most widely used of diffusible second messengers. Voltage-dependent Ca2+ channels (VDCC) are a family of molecules that allow cells to couple electrical activity to intracellular Ca2+ signalling. The opening and closing of these channels by depolarizing stimuli, such as action potentials, allows Ca2+ ions to enter neurons down a steep electrochemical gradient, producing transient intracellular Ca2+ signals. Many of the processes that occur in neurons, including transmitter release, gene transcription and metabolism are controlled by Ca2+ influx occurring simultaneously at different cellular locales. The pore is formed by the alpha-1 subunit which incorporates the conduction pore, the voltage sensor and gating apparatus, and the known sites of channel regulation by second messengers, drugs, and toxins []. The activity of this pore is modulated by four tightly-coupled subunits: an intracellular beta subunit; a transmembrane gamma subunit; and a disulphide-linked complex of alpha-2 and delta subunits, which are proteolytically cleaved from the same gene product. Properties of the protein including gating voltage-dependence, G protein modulation and kinase susceptibility can be influenced by these subunits.Voltage-gated calcium channels are classified as T, L, N, P, Q and R, and are distinguished by their sensitivity to pharmacological blocks, single-channel conductance kinetics, and voltage-dependence. On the basis of their voltage activation properties, the voltage-gated calcium classes can be further divided into two broad groups: the low (T-type) and high (L, N, P, Q and R-type) threshold-activated channels.The alpha-1 subunit forms the pore for the import of extracellular calcium ions and, though regulated by the other subunits, is primarily responsible for the pharmacological properties of the channel []. It shares sequence characteristics with all voltage-dependent cation channels, and exploits the same 6-helix bundle structural motif - in both sodium and calcium channels, this motif is repeated 4 times within the sequence to give a 24-helix bundle. Within each of these repeats, 5 of the transmembrane (TM) segments (S1, S2, S3, S5, S6) are hydrophobic, while the other (S4) is positively charged and serves as the voltage-sensor. Several genes encoding alpha-1 subunits have been identified and can be divided into three functionally distinct families based on sequence homology - Cav1, Cav2 and Cav3 []. The Cav1 family forms channels mediating L-type calcium currents, the Cav2 family mediates P/Q-, N-, and R-type calcium currents, while the Cav3 family mediates T-type calcium currents.L-type calcium channels are formed from alpha-1S, alpha-1C, alpha-1D, and alpha-1F subunits. They are widely distributed and are well characterised in the heart, smooth and skeletal muscle, and some neurons. Their primary functions are in both excitation-contraction and excitation-secretion coupling. In skeletal muscle, the L-type calcium channels act as a voltage sensor for excitation-contraction coupling, and in cardiac muscle, they provide a pathway for calcium influx. Mutations affecting L-type channel subunits result in three diseases: (1) muscular dystrophy, which is characterised by a lack of functional skeletal muscle; (2) hypokalaemic periodic paralysis, which is characterised by episodic attacks of skeletal muscle weakness; and (3) malignant hyperthermia, which is the main cause of death due to anaesthesia. 1,4-dihydropyridines act as antagonists of these channels [, ].The alpha-1S subunit is present in skeletal muscle and has also been detected in kidney and brain []. In the skeletal muscle, it is present in two size variants, a full-length, minor (~5%) form of ~212kDa, and a major (~95%) species of ~190kDa, derived from the longer protein by post-translational cleavage.
Protein
Organism: Mus musculus/domesticus
Length: 2368  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 844  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 2321  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 2368  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 431  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 2327  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 2321  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 2321  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 2365  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 2457  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 1852  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 2139  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 2179  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 2063  
Fragment?: false