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Search results 201 to 300 out of 316 for Kcnab2

0.04s
Type Details Score
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Strong
Sex: Not Specified
Emaps: EMAPS:1756923
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825699
Age: embryonic day 14.5
Image: euxassay_002988_05
Specimen Label: euxassay_002988_05
Detected: true
Specimen Num: 4
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Strong
Sex: Not Specified
Emaps: EMAPS:1756923
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825699
Age: embryonic day 14.5
Image: euxassay_002988_20
Specimen Label: euxassay_002988_20
Detected: true
Specimen Num: 19
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Strong
Sex: Not Specified
Emaps: EMAPS:1756923
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825699
Age: embryonic day 14.5
Image: euxassay_002988_21
Specimen Label: euxassay_002988_21
Detected: true
Specimen Num: 20
GXD Expression  
Probe: MGI:4885035
Assay Type: RNA in situ
Annotation Date: 2011-04-11
Strength: Present
Sex: Not Specified
Emaps: EMAPS:3280923
Pattern: Widespread
Stage: TS23
Assay Id: MGI:4944876
Age: embryonic day 15.5
Image: g00309 E15.5
Specimen Label: g00309 E15.5
Detected: true
Specimen Num: 2
GXD Expression
Probe: MGI:4885035
Assay Type: RNA in situ
Annotation Date: 2011-04-11
Strength: Present
Sex: Not Specified
Emaps: EMAPS:3280928
Pattern: Regionally restricted
Stage: TS28
Assay Id: MGI:4944876
Age: postnatal day 7
Image: g00309 P7
Note: Expression was region specific and scattered.
Specimen Label: g00309 P7
Detected: true
Specimen Num: 3
GXD Expression
Probe: MGI:4885035
Assay Type: RNA in situ
Annotation Date: 2011-04-11
Strength: Present
Sex: Not Specified
Emaps: EMAPS:3280928
Pattern: Regionally restricted
Stage: TS28
Assay Id: MGI:4944876
Age: postnatal day 42
Image: g00309 Adult
Note: Expression was region specific and scattered.
Specimen Label: g00309 Adult
Detected: true
Specimen Num: 4
GXD Expression  
Probe: MGI:4885035
Assay Type: RNA in situ
Annotation Date: 2011-04-11
Strength: Present
Sex: Not Specified
Emaps: EMAPS:3266523
Pattern: Widespread
Stage: TS23
Assay Id: MGI:4944876
Age: embryonic day 15.5
Image: g00309 E15.5
Specimen Label: g00309 E15.5
Detected: true
Specimen Num: 2
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Moderate
Sex: Not Specified
Emaps: EMAPS:1679523
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825700
Age: embryonic day 14.5
Image: euxassay_001129_07
Specimen Label: euxassay_001129_07
Detected: true
Specimen Num: 6
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Moderate
Sex: Not Specified
Emaps: EMAPS:1679523
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825700
Age: embryonic day 14.5
Image: euxassay_001129_18
Specimen Label: euxassay_001129_18
Detected: true
Specimen Num: 17
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Moderate
Sex: Not Specified
Emaps: EMAPS:1679523
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825700
Age: embryonic day 14.5
Image: euxassay_001129_19
Specimen Label: euxassay_001129_19
Detected: true
Specimen Num: 18
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Strong
Sex: Not Specified
Emaps: EMAPS:1679523
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825699
Age: embryonic day 14.5
Image: euxassay_002988_07
Specimen Label: euxassay_002988_07
Detected: true
Specimen Num: 6
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Strong
Sex: Not Specified
Emaps: EMAPS:1679523
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825699
Age: embryonic day 14.5
Image: euxassay_002988_18
Specimen Label: euxassay_002988_18
Detected: true
Specimen Num: 17
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Strong
Sex: Not Specified
Emaps: EMAPS:1679523
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825699
Age: embryonic day 14.5
Image: euxassay_002988_19
Specimen Label: euxassay_002988_19
Detected: true
Specimen Num: 18
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Moderate
Sex: Not Specified
Emaps: EMAPS:1756323
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825700
Age: embryonic day 14.5
Image: euxassay_001129_06
Specimen Label: euxassay_001129_06
Detected: true
Specimen Num: 5
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Moderate
Sex: Not Specified
Emaps: EMAPS:1756323
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825700
Age: embryonic day 14.5
Image: euxassay_001129_07
Specimen Label: euxassay_001129_07
Detected: true
Specimen Num: 6
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Moderate
Sex: Not Specified
Emaps: EMAPS:1756323
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825700
Age: embryonic day 14.5
Image: euxassay_001129_18
Specimen Label: euxassay_001129_18
Detected: true
Specimen Num: 17
GXD Expression  
Probe: MGI:1626317
Assay Type: RNA in situ
Annotation Date: 2010-09-14
Strength: Moderate
Sex: Not Specified
Emaps: EMAPS:1756323
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4825700
Age: embryonic day 14.5
Image: euxassay_001129_19
Specimen Label: euxassay_001129_19
Detected: true
Specimen Num: 18
GXD Expression
Probe: MGI:4885035
Assay Type: RNA in situ
Annotation Date: 2011-04-11
Strength: Present
Sex: Not Specified
Emaps: EMAPS:1757723
Pattern: Regionally restricted
Stage: TS23
Assay Id: MGI:4944876
Age: embryonic day 15.5
Image: g00309 E15.5
Note: Expression was region specific and scattered.
Specimen Label: g00309 E15.5
Detected: true
Specimen Num: 2
GXD Expression
Probe: MGI:4885035
Assay Type: RNA in situ
Annotation Date: 2011-04-11
Strength: Present
Sex: Not Specified
Emaps: EMAPS:1757728
Pattern: Regionally restricted
Stage: TS28
Assay Id: MGI:4944876
Age: postnatal day 7
Image: g00309 P7
Note: Expression was region specific and scattered.
Specimen Label: g00309 P7
Detected: true
Specimen Num: 3
GXD Expression
Probe: MGI:4885035
Assay Type: RNA in situ
Annotation Date: 2011-04-11
Strength: Strong
Sex: Not Specified
Emaps: EMAPS:1757728
Pattern: Regionally restricted
Stage: TS28
Assay Id: MGI:4944876
Age: postnatal day 42
Image: g00309 Adult
Note: Expression was region specific and scattered.
Specimen Label: g00309 Adult
Detected: true
Specimen Num: 4
Publication
First Author: Connor JX
Year: 2005
Journal: Genes Brain Behav
Title: Genetic modifiers of the Kv beta2-null phenotype in mice.
Volume: 4
Issue: 2
Pages: 77-88
Publication
First Author: Ohanyan V
Year: 2021
Journal: Circ Res
Title: Myocardial Blood Flow Control by Oxygen Sensing Vascular Kvβ Proteins.
Volume: 128
Issue: 6
Pages: 738-751
Publication
First Author: Bavassano C
Year: 2013
Journal: Biochim Biophys Acta
Title: Identification of voltage-gated K(+) channel beta 2 (Kvβ2) subunit as a novel interaction partner of the pain transducer Transient Receptor Potential Vanilloid 1 channel (TRPV1).
Volume: 1833
Issue: 12
Pages: 3166-3175
Publication
First Author: Uebele VN
Year: 1996
Journal: J Biol Chem
Title: Functional differences in Kv1.5 currents expressed in mammalian cell lines are due to the presence of endogenous Kv beta 2.1 subunits.
Volume: 271
Issue: 5
Pages: 2406-12
Publication
First Author: Vacher H
Year: 2011
Journal: J Cell Biol
Title: Cdk-mediated phosphorylation of the Kvβ2 auxiliary subunit regulates Kv1 channel axonal targeting.
Volume: 192
Issue: 5
Pages: 813-24
Publication
First Author: Downen M
Year: 1999
Journal: Brain Res Dev Brain Res
Title: Developmental expression of voltage-gated potassium channel beta subunits.
Volume: 117
Issue: 1
Pages: 71-80
Publication
First Author: Fink M
Year: 1996
Journal: J Biol Chem
Title: A new K+ channel beta subunit to specifically enhance Kv2.2 (CDRK) expression.
Volume: 271
Issue: 42
Pages: 26341-8
Publication
First Author: Conforti L
Year: 1999
Journal: Mamm Genome
Title: The major brain isoform of kif1b lacks the putative mitochondria-binding domain.
Volume: 10
Issue: 6
Pages: 617-22
Publication
First Author: Aimond F
Year: 2005
Journal: Circ Res
Title: Accessory Kvbeta1 subunits differentially modulate the functional expression of voltage-gated K+ channels in mouse ventricular myocytes.
Volume: 96
Issue: 4
Pages: 451-8
Publication
First Author: Xu M
Year: 2010
Journal: J Neurosci
Title: Kinesin I transports tetramerized Kv3 channels through the axon initial segment via direct binding.
Volume: 30
Issue: 47
Pages: 15987-6001
Publication
First Author: Coleman MP
Year: 1996
Journal: Mamm Genome
Title: High-resolution mapping of the genes Kcnb3 and Ly63 on distal mouse chromosome 4.
Volume: 7
Issue: 7
Pages: 552-3
Publication
First Author: Ogawa Y
Year: 2008
Journal: J Neurosci
Title: Postsynaptic density-93 clusters Kv1 channels at axon initial segments independently of Caspr2.
Volume: 28
Issue: 22
Pages: 5731-9
Publication
First Author: Poliak S
Year: 2003
Journal: J Cell Biol
Title: Juxtaparanodal clustering of Shaker-like K+ channels in myelinated axons depends on Caspr2 and TAG-1.
Volume: 162
Issue: 6
Pages: 1149-60
Publication
First Author: Autieri MV
Year: 1995
Journal: Genomics
Title: Genomic organization and genetic mapping of the neuroimmune gene I2rf5 to mouse chromosome 4.
Volume: 25
Issue: 1
Pages: 282-4
Publication
First Author: Chen N
Year: 2015
Journal: Biochim Biophys Acta
Title: Interaction proteomics of canonical Caspr2 (CNTNAP2) reveals the presence of two Caspr2 isoforms with overlapping interactomes.
Volume: 1854
Issue: 7
Pages: 827-33
Publication
First Author: Lyu MS
Year: 1999
Journal: Mamm Genome
Title: Genetic mapping of six mouse peroxiredoxin genes and fourteen peroxiredoxin related sequences.
Volume: 10
Issue: 10
Pages: 1017-9
Publication
First Author: Nagamachi A
Year: 2013
Journal: Cancer Cell
Title: Haploinsufficiency of SAMD9L, an endosome fusion facilitator, causes myeloid malignancies in mice mimicking human diseases with monosomy 7.
Volume: 24
Issue: 3
Pages: 305-17
Publication
First Author: Harrell MD
Year: 2007
Journal: Physiol Genomics
Title: Large-scale analysis of ion channel gene expression in the mouse heart during perinatal development.
Volume: 28
Issue: 3
Pages: 273-83
Publication      
First Author: Shanghai Model Organisms Center
Year: 2017
Journal: MGI Direct Data Submission
Title: Information obtained from the Shanghai Model Organisms Center (SMOC), Shanghai, China
Publication      
First Author: Freeman TC
Year: 1998
Journal: MGI Direct Data Submission
Title: Expression Mapping of Mouse Genes
Publication        
First Author: Haiming Tang, Dustin Ebert, Matthias Blum, Robert Finn, Paul Thomas
Year: 2023
Title: TreeGrafter-generated GO annotations
Publication        
First Author: Mouse Genome Informatics Scientific Curators
Year: 2005
Title: Mouse Synonym Curation
Publication      
First Author: MGI and IMPC
Year: 2018
Journal: Database Release
Title: MGI Load of Endonuclease-Mediated Alleles (CRISPR) from the International Mouse Phenotyping Consortium (IMPC)
Publication        
First Author: The Gene Ontology Consortium
Year: 2016
Title: Automatic assignment of GO terms using logical inference, based on on inter-ontology links
Publication      
First Author: Wellcome Trust Sanger Institute
Year: 2009
Journal: MGI Direct Data Submission
Title: Alleles produced for the KOMP project by the Wellcome Trust Sanger Institute
Publication        
First Author: DDB, FB, MGI, GOA, ZFIN curators
Year: 2001
Title: Gene Ontology annotation through association of InterPro records with GO terms
Publication      
First Author: Mouse Genome Informatics and the International Mouse Phenotyping Consortium (IMPC)
Year: 2014
Journal: Database Release
Title: Obtaining and Loading Phenotype Annotations from the International Mouse Phenotyping Consortium (IMPC) Database
Publication        
First Author: The Gene Ontology Consortium
Year: 2014
Title: Automated transfer of experimentally-verified manual GO annotation data to mouse-rat orthologs
Publication
First Author: Magdaleno S
Year: 2006
Journal: PLoS Biol
Title: BGEM: an in situ hybridization database of gene expression in the embryonic and adult mouse nervous system.
Volume: 4
Issue: 4
Pages: e86
Publication
First Author: Carninci P
Year: 2005
Journal: Science
Title: The transcriptional landscape of the mammalian genome.
Volume: 309
Issue: 5740
Pages: 1559-63
Publication        
First Author: MGD Nomenclature Committee
Year: 1995
Title: Nomenclature Committee Use
Publication
First Author: Skarnes WC
Year: 2011
Journal: Nature
Title: A conditional knockout resource for the genome-wide study of mouse gene function.
Volume: 474
Issue: 7351
Pages: 337-42
Publication
First Author: Adams DJ
Year: 2024
Journal: Nature
Title: Genetic determinants of micronucleus formation in vivo.
Volume: 627
Issue: 8002
Pages: 130-136
Publication        
First Author: GemPharmatech
Year: 2020
Title: GemPharmatech Website.
Publication        
First Author: AgBase, BHF-UCL, Parkinson's UK-UCL, dictyBase, HGNC, Roslin Institute, FlyBase and UniProtKB curators
Year: 2011
Title: Manual transfer of experimentally-verified manual GO annotation data to orthologs by curator judgment of sequence similarity
Publication      
First Author: The Jackson Laboratory Mouse Radiation Hybrid Database
Year: 2004
Journal: Database Release
Title: Mouse T31 Radiation Hybrid Data Load
Publication        
First Author: The Gene Ontology Consortium
Year: 2010
Title: Automated transfer of experimentally-verified manual GO annotation data to mouse-human orthologs
Publication
First Author: Diez-Roux G
Year: 2011
Journal: PLoS Biol
Title: A high-resolution anatomical atlas of the transcriptome in the mouse embryo.
Volume: 9
Issue: 1
Pages: e1000582
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: Mouse Genome Informatics Scientific Curators
Year: 2002
Title: Mouse Genome Informatics Computational Sequence to Gene Associations
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: Mouse Genome Informatics Group
Year: 2003
Journal: Database Procedure
Title: Automatic Encodes (AutoE) Reference
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 Scientific Curators
Year: 2005
Title: Obtaining and loading genome assembly coordinates from NCBI annotations
Publication      
First Author: Mouse Genome Informatics
Year: 2010
Journal: Database Release
Title: Protein Ontology Association Load.
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: 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 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
Publication        
First Author: Mouse Genome Informatics Scientific Curators
Year: 2005
Title: Obtaining and Loading Genome Assembly Coordinates from Ensembl Annotations
Publication      
First Author: Allen Institute for Brain Science
Year: 2004
Journal: Allen Institute
Title: Allen Brain Atlas: mouse riboprobes
Publication
First Author: Zerr P
Year: 2000
Journal: Neurogenetics
Title: The murine Bis1 seizure gene and the Kcnab2 gene encoding the beta2-subunit of the K+ channel are different.
Volume: 2
Issue: 4
Pages: 231-4
Protein
Organism: Mus musculus/domesticus
Length: 38  
Fragment?: true
Protein Domain
Type: Family
Description: Potassium channels are the most diverse group of the ion channel family [, ]. They are important in shaping the action potential, and in neuronal excitability and plasticity []. The potassium channel family is composed of several functionally distinct isoforms, which can be broadly separated into 2 groups []: the practically non-inactivating 'delayed' group and the rapidly inactivating 'transient' group.These are all highly similar proteins, with only small amino acid changes causing the diversity of the voltage-dependent gating mechanism, channel conductance and toxin binding properties. Each type of K+channel is activated by different signals and conditions depending on their type of regulation: some open in response to depolarisation of the plasma membrane; others in response to hyperpolarisation or an increase in intracellular calcium concentration; some can be regulated by binding of a transmitter, together with intracellular kinases; while others are regulated by GTP-binding proteins or other second messengers []. In eukaryotic cells, K+channels are involved in neural signalling and generation of the cardiac rhythm, act as effectors in signal transduction pathways involving G protein-coupled receptors (GPCRs) and may have a role in target cell lysis by cytotoxic T-lymphocytes []. In prokaryotic cells, they play a role in the maintenance of ionic homeostasis [].All K+channels discovered so far possess a core of alpha subunits, each comprising either one or two copies of a highly conserved pore loop domain (P-domain). The P-domain contains the sequence (T/SxxTxGxG), which has been termed the K+selectivity sequence. In families that contain one P-domain, four subunits assemble to form a selective pathway for K+across the membrane. However, it remains unclear how the 2 P-domain subunits assemble to form a selective pore. The functional diversity of these families can arise through homo- or hetero-associations of alpha subunits or association with auxiliary cytoplasmic beta subunits. K+channel subunits containing one pore domain can be assigned into one of two superfamilies: those that possess six transmembrane (TM) domains and those that possess only two TM domains. The six TM domain superfamily can be further subdivided into conserved gene families: the voltage-gated (Kv) channels; the KCNQ channels (originally known as KvLQT channels); the EAG-like K+channels; and three types of calcium (Ca)-activated K+channels (BK, IK and SK) []. The 2TM domain family comprises inward-rectifying K+channels. In addition, there are K+channel alpha-subunits that possess two P-domains. These are usually highly regulated K+selective leak channels.The KCNAB family (also known as the Kvbeta family) of voltage-dependent potassium channel beta subunits form complexes with the alpha subunits which can modify the properties of the channel. Four of these soluble beta subunits form a complex with four alpha subunit cytoplasmic (T1) regions. These subunits belong to the family of are NADPH-dependent aldo-keto reductases, and bind NADPH-cofactors in their active sites. Changes in the oxidoreductase activity appear to markedly influence the gating mode of Kv channels, since mutations to the catalytic residues in the active site lessen the inactivating activity of KCNAB []. The KCNAB family is further divided into 3 subfamilies: KCNAB1 (Kvbeta1), KCNAB2 (Kvbeta2) and KCNAB3 (Kvbeta3).KCNAB2 associates with Kv1.4 alpha subunits; however, association has onlyvery modest effects on the gating of this channel []. Two isoforms of KCNAB2exist, which are produced by alternative splicing of amino acids 26-39.
Allele
Name: potassium voltage-gated channel, shaker-related subfamily, beta member 2; endonuclease-mediated mutation 1, Shanghai Model Organisms Center
Allele Type: Endonuclease-mediated
Attribute String: Null/knockout
Strain
Attribute String: coisogenic, mutant strain, endonuclease-mediated mutation
Protein
Organism: Mus musculus/domesticus
Length: 134  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 367  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 353  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 257  
Fragment?: true
Protein
Organism: Mus musculus/domesticus
Length: 382  
Fragment?: false
Protein
Organism: Mus musculus/domesticus
Length: 347  
Fragment?: true
Publication
First Author: Bähring R
Year: 2001
Journal: J Biol Chem
Title: Coupling of voltage-dependent potassium channel inactivation and oxidoreductase active site of Kvbeta subunits.
Volume: 276
Issue: 25
Pages: 22923-9
Publication      
First Author: Sakano H
Year: 2023
Journal: Laryngoscope
Title: Cochlear Nucleus Transcriptome of a Fragile X Mouse Model Reveals Candidate Genes for Hyperacusis.
Publication
First Author: Tempel BL
Year: 1988
Journal: Nature
Title: Cloning of a probable potassium channel gene from mouse brain.
Volume: 332
Issue: 6167
Pages: 837-9
Publication
First Author: Perney TM
Year: 1991
Journal: Curr Opin Cell Biol
Title: The molecular biology of K+ channels.
Volume: 3
Issue: 4
Pages: 663-70
Publication
First Author: Luneau C
Year: 1991
Journal: FEBS Lett
Title: Shaw-like rat brain potassium channel cDNA's with divergent 3' ends.
Volume: 288
Issue: 1-2
Pages: 163-7
Publication
First Author: Attali B
Year: 1992
Journal: J Biol Chem
Title: Cloning, functional expression, and regulation of two K+ channels in human T lymphocytes.
Volume: 267
Issue: 12
Pages: 8650-7
Publication
First Author: Schwarz TL
Year: 1988
Journal: Nature
Title: Multiple potassium-channel components are produced by alternative splicing at the Shaker locus in Drosophila.
Volume: 331
Issue: 6152
Pages: 137-42
Publication
First Author: Stühmer W
Year: 1989
Journal: EMBO J
Title: Molecular basis of functional diversity of voltage-gated potassium channels in mammalian brain.
Volume: 8
Issue: 11
Pages: 3235-44
Publication
First Author: Miller C
Year: 2000
Journal: Genome Biol
Title: An overview of the potassium channel family.
Volume: 1
Issue: 4
Pages: REVIEWS0004
Publication
First Author: Grant AW
Year: 2003
Journal: FEMS Microbiol Lett
Title: A novel aldo-keto reductase from Escherichia coli can increase resistance to methylglyoxal toxicity.
Volume: 218
Issue: 1
Pages: 93-9
Publication
First Author: Desai KK
Year: 2008
Journal: Biochemistry
Title: A metabolic bypass of the triosephosphate isomerase reaction.
Volume: 47
Issue: 31
Pages: 7983-5
Publication
First Author: Gulbis JM
Year: 1999
Journal: Cell
Title: Structure of a voltage-dependent K+ channel beta subunit.
Volume: 97
Issue: 7
Pages: 943-52
Publication
First Author: Leicher T
Year: 1998
Journal: J Biol Chem
Title: Coexpression of the KCNA3B gene product with Kv1.5 leads to a novel A-type potassium channel.
Volume: 273
Issue: 52
Pages: 35095-101
Protein Domain
Type: Family
Description: This entry consists of the voltage-dependent potassium channel beta subunit KCNAB and related proteins. The bacterial proteins in this entry lack apparent alpha subunit partners and predicted to function as soluble aldo/keto reductase enzymes [, ].Potassium channels are the most diverse group of the ion channel family [, ]. They are important in shaping the action potential, and in neuronal excitability and plasticity []. The potassium channel family is composed of several functionally distinct isoforms, which can be broadly separated into 2 groups []: the practically non-inactivating 'delayed' group and the rapidly inactivating 'transient' group.These are all highly similar proteins, with only small amino acid changes causing the diversity of the voltage-dependent gating mechanism, channel conductance and toxin binding properties. Each type of K+channel is activated by different signals and conditions depending on their type of regulation: some open in response to depolarisation of the plasma membrane; others in response to hyperpolarisation or an increase in intracellular calcium concentration; some can be regulated by binding of a transmitter, together with intracellular kinases; while others are regulated by GTP-binding proteins or other second messengers []. In eukaryotic cells, K+channels are involved in neural signalling and generation of the cardiac rhythm, act as effectors in signal transduction pathways involving G protein-coupled receptors (GPCRs) and may have a role in target cell lysis by cytotoxic T-lymphocytes []. In prokaryotic cells, they play a role in the maintenance of ionic homeostasis [].All K+channels discovered so far possess a core of alpha subunits, each comprising either one or two copies of a highly conserved pore loop domain (P-domain). The P-domain contains the sequence (T/SxxTxGxG), which has been termed the K+selectivity sequence. In families that contain one P-domain, four subunits assemble to form a selective pathway for K+across the membrane. However, it remains unclear how the 2 P-domain subunits assemble to form a selective pore. The functional diversity of these families can arise through homo- or hetero-associations of alpha subunits or association with auxiliary cytoplasmic beta subunits. K+channel subunits containing one pore domain can be assigned into one of two superfamilies: those that possess six transmembrane (TM) domains and those that possess only two TM domains. The six TM domain superfamily can be further subdivided into conserved gene families: the voltage-gated (Kv) channels; the KCNQ channels (originally known as KvLQT channels); the EAG-like K+channels; and three types of calcium (Ca)-activated K+channels (BK, IK and SK) []. The 2TM domain family comprises inward-rectifying K+channels. In addition, there are K+channel alpha-subunits that possess two P-domains. These are usually highly regulated K+selective leak channels.The KCNAB family (also known as the Kvbeta family) of voltage-dependent potassium channel beta subunits form complexes with the alpha subunits which can modify the properties of the channel. Four of these soluble beta subunits form a complex with four alpha subunit cytoplasmic (T1) regions. These subunits belong to the family of are NADPH-dependent aldo-keto reductases, and bind NADPH-cofactors in their active sites. Changes in the oxidoreductase activity appear to markedly influence the gating mode of Kv channels, since mutations to the catalytic residues in the active site lessen the inactivating activity of KCNAB []. The KCNAB family is further divided into 3 subfamilies: KCNAB1 (Kvbeta1), KCNAB2 (Kvbeta2) and KCNAB3 (Kvbeta3).
Protein Domain
Type: Family
Description: Potassium channels are the most diverse group of the ion channel family [, ]. They are important in shaping the action potential, and in neuronal excitability and plasticity []. The potassium channel family is composed of several functionally distinct isoforms, which can be broadly separated into 2 groups []: the practically non-inactivating 'delayed' group and the rapidly inactivating 'transient' group.These are all highly similar proteins, with only small amino acid changes causing the diversity of the voltage-dependent gating mechanism, channel conductance and toxin binding properties. Each type of K+channel is activated by different signals and conditions depending on their type of regulation: some open in response to depolarisation of the plasma membrane; others in response to hyperpolarisation or an increase in intracellular calcium concentration; some can be regulated by binding of a transmitter, together with intracellular kinases; while others are regulated by GTP-binding proteins or other second messengers []. In eukaryotic cells, K+channels are involved in neural signalling and generation of the cardiac rhythm, act as effectors in signal transduction pathways involving G protein-coupled receptors (GPCRs) and may have a role in target cell lysis by cytotoxic T-lymphocytes []. In prokaryotic cells, they play a role in the maintenance of ionic homeostasis [].All K+channels discovered so far possess a core of alpha subunits, each comprising either one or two copies of a highly conserved pore loop domain (P-domain). The P-domain contains the sequence (T/SxxTxGxG), which has been termed the K+selectivity sequence. In families that contain one P-domain, four subunits assemble to form a selective pathway for K+across the membrane. However, it remains unclear how the 2 P-domain subunits assemble to form a selective pore. The functional diversity of these families can arise through homo- or hetero-associations of alpha subunits or association with auxiliary cytoplasmic beta subunits. K+channel subunits containing one pore domain can be assigned into one of two superfamilies: those that possess six transmembrane (TM) domains and those that possess only two TM domains. The six TM domain superfamily can be further subdivided into conserved gene families: the voltage-gated (Kv) channels; the KCNQ channels (originally known as KvLQT channels); the EAG-like K+channels; and three types of calcium (Ca)-activated K+channels (BK, IK and SK) []. The 2TM domain family comprises inward-rectifying K+channels. In addition, there are K+channel alpha-subunits that possess two P-domains. These are usually highly regulated K+selective leak channels.The KCNAB family (also known as the Kvbeta family) of voltage-dependent potassium channel beta subunits form complexes with the alpha subunits which can modify the properties of the channel. Four of these soluble beta subunits form a complex with four alpha subunit cytoplasmic (T1) regions. These subunits belong to the family of are NADPH-dependent aldo-keto reductases, and bind NADPH-cofactors in their active sites. Changes in the oxidoreductase activity appear to markedly influence the gating mode of Kv channels, since mutations to the catalytic residues in the active site lessen the inactivating activity of KCNAB []. The KCNAB family is further divided into 3 subfamilies: KCNAB1 (Kvbeta1), KCNAB2 (Kvbeta2) and KCNAB3 (Kvbeta3).
Protein Domain
Type: Family
Description: Potassium channels are the most diverse group of the ion channel family [, ]. They are important in shaping the action potential, and in neuronal excitability and plasticity []. The potassium channel family is composed of several functionally distinct isoforms, which can be broadly separated into 2 groups []: the practically non-inactivating 'delayed' group and the rapidly inactivating 'transient' group.These are all highly similar proteins, with only small amino acid changes causing the diversity of the voltage-dependent gating mechanism, channel conductance and toxin binding properties. Each type of K+channel is activated by different signals and conditions depending on their type of regulation: some open in response to depolarisation of the plasma membrane; others in response to hyperpolarisation or an increase in intracellular calcium concentration; some can be regulated by binding of a transmitter, together with intracellular kinases; while others are regulated by GTP-binding proteins or other second messengers []. In eukaryotic cells, K+channels are involved in neural signalling and generation of the cardiac rhythm, act as effectors in signal transduction pathways involving G protein-coupled receptors (GPCRs) and may have a role in target cell lysis by cytotoxic T-lymphocytes []. In prokaryotic cells, they play a role in the maintenance of ionic homeostasis [].All K+channels discovered so far possess a core of alpha subunits, each comprising either one or two copies of a highly conserved pore loop domain (P-domain). The P-domain contains the sequence (T/SxxTxGxG), which has been termed the K+selectivity sequence. In families that contain one P-domain, four subunits assemble to form a selective pathway for K+across the membrane. However, it remains unclear how the 2 P-domain subunits assemble to form a selective pore. Thefunctional diversity of these families can arise through homo- or hetero-associations of alpha subunits or association with auxiliary cytoplasmic beta subunits. K+channel subunits containing one pore domain can be assigned into one of two superfamilies: those that possess six transmembrane (TM) domains and those that possess only two TM domains. The six TM domain superfamily can be further subdivided into conserved gene families: the voltage-gated (Kv) channels; the KCNQ channels (originally known as KvLQT channels); the EAG-like K+channels; and three types of calcium (Ca)-activated K+channels (BK, IK and SK) []. The 2TM domain family comprises inward-rectifying K+channels. In addition, there are K+channel alpha-subunits that possess two P-domains. These are usually highly regulated K+selective leak channels.The KCNAB family (also known as the Kvbeta family) of voltage-dependent potassium channel beta subunits form complexes with the alpha subunits which can modify the properties of the channel. Four of these soluble beta subunits form a complex with four alpha subunit cytoplasmic (T1) regions. These subunits belong to the family of are NADPH-dependent aldo-keto reductases, and bind NADPH-cofactors in their active sites. Changes in the oxidoreductase activity appear to markedly influence the gating mode of Kv channels, since mutations to the catalytic residues in the active site lessen the inactivating activity of KCNAB []. The KCNAB family is further divided into 3 subfamilies: KCNAB1 (Kvbeta1), KCNAB2 (Kvbeta2) and KCNAB3 (Kvbeta3).KCNAB3 associates with Kv1.5 alpha subunits, resulting in a much faster inactivation than is observed in kv1.5 channels formed from alpha subunitsalone []. KCNAB3 channels are expressed specifically in the brain, with most prominent expression in the cerebellum. Weaker expression is observed in the cortex, occipital lobe, frontal lobe and temporal lobe.
Protein Domain
Type: Family
Description: Potassium channels are the most diverse group of the ion channel family [, ]. They are important in shaping the action potential, and in neuronal excitability and plasticity []. The potassium channel family is composed of several functionally distinct isoforms, which can be broadly separated into 2 groups []: the practically non-inactivating 'delayed' group and the rapidly inactivating 'transient' group.These are all highly similar proteins, with only small amino acid changes causing the diversity of the voltage-dependent gating mechanism, channel conductance and toxin binding properties. Each type of K+channel is activated by different signals and conditions depending on their type of regulation: some open in response to depolarisation of the plasma membrane; others in response to hyperpolarisation or an increase in intracellular calcium concentration; some can be regulated by binding of a transmitter, together with intracellular kinases; while others are regulated by GTP-binding proteins or other second messengers []. In eukaryotic cells, K+channels are involved in neural signalling and generation of the cardiac rhythm, act as effectors in signal transduction pathways involving G protein-coupled receptors (GPCRs) and may have a role in target cell lysis by cytotoxic T-lymphocytes []. In prokaryotic cells, they play a role in the maintenance of ionic homeostasis [].All K+channels discovered so far possess a core of alpha subunits, each comprising either one or two copies of a highly conserved pore loop domain (P-domain). The P-domain contains the sequence (T/SxxTxGxG), which has been termed the K+selectivity sequence. In families that contain one P-domain, four subunits assemble to form a selective pathway for K+across the membrane. However, it remains unclear how the 2 P-domain subunits assemble to form a selective pore. The functional diversity of these families can arise through homo- or hetero-associations of alpha subunits or association with auxiliary cytoplasmic beta subunits. K+channel subunits containing one pore domain can be assigned into one of two superfamilies: those that possess six transmembrane (TM) domains and those that possess only two TM domains. The six TM domain superfamily can be further subdivided into conserved gene families: the voltage-gated (Kv) channels; the KCNQ channels (originally known as KvLQT channels); the EAG-like K+channels; and three types of calcium (Ca)-activated K+channels (BK, IK and SK) []. The 2TM domain family comprises inward-rectifying K+channels. In addition, there are K+channel alpha-subunits that possess two P-domains. These are usually highly regulated K+selective leak channels.The KCNAB family (also known as the Kvbeta family) of voltage-dependent potassium channel beta subunits form complexes with the alpha subunits which can modify the properties of the channel. Four of these soluble beta subunits form a complex with four alpha subunit cytoplasmic (T1) regions. These subunits belong to the family of are NADPH-dependent aldo-keto reductases, and bind NADPH-cofactors in their active sites. Changes in the oxidoreductase activity appear to markedly influence the gating mode of Kv channels, since mutations to the catalytic residues in the active site lessen the inactivating activity of KCNAB []. The KCNAB family is further divided into 3 subfamilies: KCNAB1 (Kvbeta1), KCNAB2 (Kvbeta2) and KCNAB3 (Kvbeta3).KCNAB1 associates with Kv1.4 and Kv1.5 alpha subunits and appears to have an N-terminal sequence that is similar to the Kv1 channel inactivation gate.Thus, when KCNAB1 subunits associate, their N-termini appear to be able to substitute for alpha subunit inactivation gates []. Three isoforms of KCNAB1 exist, which are produced by alternative splicing of the N-terminal90 amino acids. KCNAB1 channels are expressed in brain (caudate nucleus,hippocampus, amygdala, subthalamic nucleus and thalamus) and heart.