NamePotassium voltage-gated channel subfamily H member 3
Synonyms
  • BEC1
  • Brain-specific eag-like channel 1
  • ELK channel 2
  • ELK2
  • Ether-a-go-go-like potassium channel 2
  • KIAA1282
  • Voltage-gated potassium channel subunit Kv12.2
Gene NameKCNH3
OrganismHuman
Amino acid sequence
>lcl|BSEQ0008967|Potassium voltage-gated channel subfamily H member 3
MPAMRGLLAPQNTFLDTIATRFDGTHSNFVLGNAQVAGLFPVVYCSDGFCDLTGFSRAEV
MQRGCACSFLYGPDTSELVRQQIRKALDEHKEFKAELILYRKSGLPFWCLLDVIPIKNEK
GEVALFLVSHKDISETKNRGGPDRWKETGGGRRRYGRARSKGFNANRRRSRAVLYHLSGH
LQKQPKGKHKLNKGVFGEKPNLPEYKVAAIRKSPFILLHCGALRATWDGFILLATLYVAV
TVPYSVCVSTAREPSAARGPPSVCDLAVEVLFILDIVLNFRTTFVSKSGQVVFAPKSICL
HYVTTWFLLDVIAALPFDLLHAFKVNVYFGAHLLKTVRLLRLLRLLPRLDRYSQYSAVVL
TLLMAVFALLAHWVACVWFYIGQREIESSESELPEIGWLQELARRLETPYYLVGRRPAGG
NSSGQSDNCSSSSEANGTGLELLGGPSLRSAYITSLYFALSSLTSVGFGNVSANTDTEKI
FSICTMLIGALMHAVVFGNVTAIIQRMYARRFLYHSRTRDLRDYIRIHRIPKPLKQRMLE
YFQATWAVNNGIDTTELLQSLPDELRADIAMHLHKEVLQLPLFEAASRGCLRALSLALRP
AFCTPGEYLIHQGDALQALYFVCSGSMEVLKGGTVLAILGKGDLIGCELPRREQVVKANA
DVKGLTYCVLQCLQLAGLHDSLALYPEFAPRFSRGLRGELSYNLGAGGGSAEVDTSSLSG
DNTLMSTLEEKETDGEQGPTVSPAPADEPSSPLLSPGCTSSSSAAKLLSPRRTAPRPRLG
GRGRPGRAGALKAEAGPSAPPRALEGLRLPPMPWNVPPDLSPRVVDGIEDGCGSDQPKFS
FRVGQSGPECSSSPSPGPESGLLTVPHGPSEARNTDTLDKLRQAVTELSEQVLQMREGLQ
SLRQAVQLVLAPHREGPCPRASGEGPCPASTSGLLQPLCVDTGASSYCLQPPAGSVLSGT
WPHPRPGPPPLMAPWPWGPPASQSSPWPRATAFWTSTSDSEPPASGDLCSEPSTPASPPP
SEEGARTGPAEPVSQAEATSTGEPPPGSGGLALPWDPHSLEMVLIGCHGSGTVQWTQEEG
TGV
Number of residues1083
Molecular Weight117127.74
Theoretical pINot Available
GO Classification
Functions
  • phosphorelay sensor kinase activity
  • voltage-gated potassium channel activity
Processes
  • potassium ion transport
  • synaptic transmission
  • potassium ion transmembrane transport
  • regulation of membrane potential
Components
  • plasma membrane
  • integral component of membrane
  • integral component of plasma membrane
  • intracellular
General FunctionVoltage-gated potassium channel activity
Specific FunctionPore-forming (alpha) subunit of voltage-gated potassium channel. Elicits an outward current with fast inactivation. Channel properties may be modulated by cAMP and subunit assembly.
Pfam Domain Function
Transmembrane Regions229-249 260-280 303-323 332-352 362-382 480-500
GenBank Protein IDNot Available
UniProtKB IDQ9ULD8
UniProtKB Entry NameKCNH3_HUMAN
Cellular LocationMembrane
Gene sequence
>lcl|BSEQ0021432|Potassium voltage-gated channel subfamily H member 3 (KCNH3)
ATGCCGGCCATGCGGGGCCTCCTGGCGCCGCAGAACACCTTCCTGGACACCATCGCTACG
CGCTTCGACGGCACGCACAGTAACTTCGTGCTGGGCAACGCCCAGGTGGCGGGGCTCTTC
CCCGTGGTCTACTGCTCTGATGGCTTCTGTGACCTCACGGGCTTCTCCCGGGCTGAGGTC
ATGCAGCGGGGCTGTGCCTGCTCCTTCCTTTATGGGCCAGACACCAGTGAGCTCGTCCGC
CAACAGATCCGCAAGGCCCTGGACGAGCACAAGGAGTTCAAGGCTGAGCTGATCCTGTAC
CGGAAGAGCGGGCTCCCGTTCTGGTGTCTCCTGGATGTGATACCCATAAAGAATGAGAAA
GGGGAGGTGGCTCTCTTCCTAGTCTCTCACAAGGACATCAGCGAAACCAAGAACCGAGGG
GGCCCCGACAGATGGAAGGAGACAGGTGGTGGCCGGCGCCGATATGGCCGGGCACGATCC
AAAGGCTTCAATGCCAACCGGCGGCGGAGCCGGGCCGTGCTCTACCACCTGTCCGGGCAC
CTGCAGAAGCAGCCCAAGGGCAAGCACAAGCTCAATAAGGGGGTGTTTGGGGAGAAACCA
AACTTGCCTGAGTACAAAGTAGCCGCCATCCGGAAGTCGCCCTTCATCCTGTTGCACTGT
GGGGCACTGAGAGCCACCTGGGATGGCTTCATCCTGCTCGCCACACTCTATGTGGCTGTC
ACTGTGCCCTACAGCGTGTGTGTGAGCACAGCACGGGAGCCCAGTGCCGCCCGCGGCCCG
CCCAGCGTCTGTGACCTGGCCGTGGAGGTCCTCTTCATCCTTGACATTGTGCTGAATTTC
CGTACCACATTCGTGTCCAAGTCGGGCCAGGTGGTGTTTGCCCCAAAGTCCATTTGCCTC
CACTACGTCACCACCTGGTTCCTGCTGGATGTCATCGCAGCGCTGCCCTTTGACCTGCTA
CATGCCTTCAAGGTCAACGTGTACTTCGGGGCCCATCTGCTGAAGACGGTGCGCCTGCTG
CGCCTGCTGCGCCTGCTTCCGCGGCTGGACCGGTACTCGCAGTACAGCGCCGTGGTGCTG
ACACTGCTCATGGCCGTGTTCGCCCTGCTCGCGCACTGGGTCGCCTGCGTCTGGTTTTAC
ATTGGCCAGCGGGAGATCGAGAGCAGCGAATCCGAGCTGCCTGAGATTGGCTGGCTGCAG
GAGCTGGCCCGCCGACTGGAGACTCCCTACTACCTGGTGGGCCGGAGGCCAGCTGGAGGG
AACAGCTCCGGCCAGAGTGACAACTGCAGCAGCAGCAGCGAGGCCAACGGGACGGGGCTG
GAGCTGCTGGGCGGCCCGTCGCTGCGCAGCGCCTACATCACCTCCCTCTACTTCGCACTC
AGCAGCCTCACCAGCGTGGGCTTCGGCAACGTGTCCGCCAACACGGACACCGAGAAGATC
TTCTCCATCTGCACCATGCTCATCGGCGCCCTGATGCACGCGGTGGTGTTTGGGAACGTG
ACGGCCATCATCCAGCGCATGTACGCCCGCCGCTTTCTGTACCACAGCCGCACGCGCGAC
CTGCGCGACTACATCCGCATCCACCGTATCCCCAAGCCCCTCAAGCAGCGCATGCTGGAG
TACTTCCAGGCCACCTGGGCGGTGAACAATGGCATCGACACCACCGAGCTGCTGCAGAGC
CTCCCTGACGAGCTGCGCGCAGACATCGCCATGCACCTGCACAAGGAGGTCCTGCAGCTG
CCACTGTTTGAGGCGGCCAGCCGCGGCTGCCTGCGGGCACTGTCTCTGGCCCTGCGGCCC
GCCTTCTGCACGCCGGGCGAGTACCTCATCCACCAAGGCGATGCCCTGCAGGCCCTCTAC
TTTGTCTGCTCTGGCTCCATGGAGGTGCTCAAGGGTGGCACCGTGCTCGCCATCCTAGGG
AAGGGCGACCTGATCGGCTGTGAGCTGCCCCGGCGGGAGCAGGTGGTAAAGGCCAATGCC
GACGTGAAGGGGCTGACGTACTGCGTCCTGCAGTGTCTGCAGCTGGCTGGCCTGCACGAC
AGCCTTGCGCTGTACCCCGAGTTTGCCCCGCGCTTCAGTCGTGGCCTCCGAGGGGAGCTC
AGCTACAACCTGGGTGCTGGGGGAGGCTCTGCAGAGGTGGACACCAGCTCCCTGAGCGGC
GACAATACCCTTATGTCCACGCTGGAGGAGAAGGAGACAGATGGGGAGCAGGGCCCCACG
GTCTCCCCAGCCCCAGCTGATGAGCCCTCCAGCCCCCTGCTGTCCCCTGGCTGCACCTCC
TCATCCTCAGCTGCCAAGCTGCTATCCCCACGTCGAACAGCACCCCGGCCTCGTCTAGGT
GGCAGAGGGAGGCCAGGCAGGGCAGGGGCTTTGAAGGCTGAGGCTGGCCCCTCTGCTCCC
CCACGGGCCCTAGAGGGGCTACGGCTGCCCCCCATGCCATGGAATGTGCCCCCAGATCTG
AGCCCCAGGGTAGTAGATGGCATTGAAGACGGCTGTGGCTCGGACCAGCCCAAGTTCTCT
TTCCGCGTGGGCCAGTCTGGCCCGGAATGTAGCAGCAGCCCCTCCCCTGGACCAGAGAGC
GGCCTGCTCACTGTTCCCCATGGGCCCAGCGAGGCAAGGAACACAGACACACTGGACAAG
CTTCGGCAGGCGGTGACAGAGCTGTCAGAGCAGGTGCTGCAGATGCGGGAAGGACTGCAG
TCACTTCGCCAGGCTGTGCAGCTTGTCCTGGCGCCCCACAGGGAGGGTCCGTGCCCTCGG
GCATCGGGAGAGGGGCCGTGCCCAGCCAGCACCTCCGGGCTTCTGCAGCCTCTGTGTGTG
GACACTGGGGCATCCTCCTACTGCCTGCAGCCCCCAGCTGGCTCTGTCTTGAGTGGGACT
TGGCCCCACCCTCGTCCGGGGCCTCCTCCCCTCATGGCACCCTGGCCCTGGGGTCCCCCA
GCGTCTCAGAGCTCCCCCTGGCCTCGAGCCACAGCTTTCTGGACCTCCACCTCAGACTCA
GAGCCCCCTGCCTCAGGAGACCTCTGCTCTGAGCCCAGCACCCCTGCCTCCCCTCCTCCT
TCTGAGGAAGGGGCTAGGACTGGGCCCGCAGAGCCTGTGAGCCAGGCTGAGGCTACCAGC
ACTGGAGAGCCCCCACCAGGGTCAGGGGGCCTGGCCTTGCCCTGGGACCCCCACAGCCTG
GAGATGGTGCTTATTGGCTGCCATGGCTCTGGCACAGTCCAGTGGACCCAGGAAGAAGGC
ACAGGGGTCTGA
GenBank Gene IDNot Available
GeneCard IDNot Available
GenAtlas IDNot Available
HGNC IDHGNC:6252
Chromosome Location12
LocusNot Available
References
  1. Miyake A, Mochizuki S, Yokoi H, Kohda M, Furuichi K: New ether-a-go-go K(+) channel family members localized in human telencephalon. J Biol Chem. 1999 Aug 27;274(35):25018-25. 10455180
  2. Nagase T, Ishikawa K, Kikuno R, Hirosawa M, Nomura N, Ohara O: Prediction of the coding sequences of unidentified human genes. XV. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro. DNA Res. 1999 Oct 29;6(5):337-45. 10574462