ID KCNH2_MOUSE Reviewed; 1162 AA. AC O35219; O35220; O35221; O35989; DT 28-NOV-2002, integrated into UniProtKB/Swiss-Prot. DT 28-NOV-2002, sequence version 2. DT 08-NOV-2023, entry version 190. DE RecName: Full=Potassium voltage-gated channel subfamily H member 2; DE AltName: Full=Ether-a-go-go-related gene potassium channel 1; DE Short=ERG-1; DE Short=Eag-related protein 1; DE Short=Ether-a-go-go-related protein 1; DE Short=MERG; DE AltName: Full=Voltage-gated potassium channel subunit Kv11.1; GN Name=Kcnh2; Synonyms=Erg, Merg1; OS Mus musculus (Mouse). OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; OC Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; OC Murinae; Mus; Mus. OX NCBI_TaxID=10090; RN [1] RP NUCLEOTIDE SEQUENCE [GENOMIC DNA / MRNA] (ISOFORMS 1; 2 AND 3), AND RP VARIANTS ARG-186; THR-455; TYR-752 AND ASN-1006. RC STRAIN=129/Sv, and BALB/cJ; TISSUE=Heart; RX PubMed=9351462; DOI=10.1161/01.res.81.5.870; RA London B., Trudeau M.C., Newton K.P., Beyer A.K., Copeland N.G., RA Gilbert D.J., Jenkins N.A., Satler C.A., Robertson G.A.; RT "Two isoforms of the mouse ether-a-go-go-related gene coassemble to form RT channels with properties similar to the rapidly activating component of the RT cardiac delayed rectifier K+ current."; RL Circ. Res. 81:870-878(1997). RN [2] RP NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 3). RC TISSUE=Atrial tumor; RX PubMed=9351446; DOI=10.1161/01.res.81.5.719; RA Lees-Miller J.P., Kondo C., Wang L., Duff H.J.; RT "Electrophysiological characterization of an alternatively processed ERG K+ RT channel in mouse and human hearts."; RL Circ. Res. 81:719-726(1997). RN [3] RP PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-241; SER-245; SER-285; RP SER-286; SER-322; SER-873; SER-876 AND SER-1140, AND IDENTIFICATION BY MASS RP SPECTROMETRY [LARGE SCALE ANALYSIS]. RC TISSUE=Brain, Heart, Lung, and Testis; RX PubMed=21183079; DOI=10.1016/j.cell.2010.12.001; RA Huttlin E.L., Jedrychowski M.P., Elias J.E., Goswami T., Rad R., RA Beausoleil S.A., Villen J., Haas W., Sowa M.E., Gygi S.P.; RT "A tissue-specific atlas of mouse protein phosphorylation and expression."; RL Cell 143:1174-1189(2010). RN [4] RP METHYLATION [LARGE SCALE ANALYSIS] AT ARG-1017, AND IDENTIFICATION BY MASS RP SPECTROMETRY [LARGE SCALE ANALYSIS]. RC TISSUE=Brain; RX PubMed=24129315; DOI=10.1074/mcp.o113.027870; RA Guo A., Gu H., Zhou J., Mulhern D., Wang Y., Lee K.A., Yang V., Aguiar M., RA Kornhauser J., Jia X., Ren J., Beausoleil S.A., Silva J.C., Vemulapalli V., RA Bedford M.T., Comb M.J.; RT "Immunoaffinity enrichment and mass spectrometry analysis of protein RT methylation."; RL Mol. Cell. Proteomics 13:372-387(2014). CC -!- FUNCTION: Pore-forming (alpha) subunit of voltage-gated inwardly CC rectifying potassium channel. Channel properties are modulated by cAMP CC and subunit assembly. Mediates the rapidly activating component of the CC delayed rectifying potassium current in heart (IKr) (By similarity). CC {ECO:0000250|UniProtKB:Q12809}. CC -!- SUBUNIT: The potassium channel is probably composed of a homo- or CC heterotetrameric complex of pore-forming alpha subunits that can CC associate with modulating beta subunits. Interacts with DNAJB12 and CC DNAJB14; chaperones DNAJB12 and DNAJB14 promote tetramerization (By CC similarity). Heteromultimer with KCNH6/ERG2 and KCNH7/ERG3 (By CC similarity). Interacts with ALG10B (By similarity). Heteromultimer with CC KCNE1 and KCNE2. Interacts with CANX. The core-glycosylated, but not CC the fully glycosylated form interacts with RNF207. Interacts with CC NDFIP1 and NDFIP2 (By similarity). {ECO:0000250|UniProtKB:O08962, CC ECO:0000250|UniProtKB:Q12809}. CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000250|UniProtKB:Q12809}; CC Multi-pass membrane protein {ECO:0000255}. CC -!- ALTERNATIVE PRODUCTS: CC Event=Alternative splicing; Named isoforms=3; CC Comment=Experimental confirmation may be lacking for some isoforms.; CC Name=1; Synonyms=1A, A; CC IsoId=O35219-1; Sequence=Displayed; CC Name=2; Synonyms=1A'; CC IsoId=O35219-2; Sequence=VSP_000969; CC Name=3; Synonyms=1B, B; CC IsoId=O35219-3; Sequence=VSP_000970; CC -!- TISSUE SPECIFICITY: Isoform 1 is expressed in heart, brain and testis CC and at low levels in lung. Isoform 3 is expressed predominantly in CC heart. The expression of isoform 2 is low in all tissues tested. CC -!- DOMAIN: The segment S4 is probably the voltage-sensor and is CC characterized by a series of positively charged amino acids at every CC third position. CC -!- PTM: Phosphorylated on serine and threonine residues. {ECO:0000250}. CC -!- SIMILARITY: Belongs to the potassium channel family. H (Eag) CC (TC 1.A.1.20) subfamily. Kv11.1/KCNH2 sub-subfamily. {ECO:0000305}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AF012868; AAC53418.1; -; mRNA. DR EMBL; AF012869; AAC53419.1; -; mRNA. DR EMBL; AF012871; AAC53420.1; -; Genomic_DNA. DR EMBL; AF012870; AAC53420.1; JOINED; Genomic_DNA. DR EMBL; AF012871; AAC53421.1; -; Genomic_DNA. DR EMBL; AF012871; AAC53422.1; -; Genomic_DNA. DR EMBL; AF012870; AAC53422.1; JOINED; Genomic_DNA. DR EMBL; AF034762; AAB87571.1; -; mRNA. DR CCDS; CCDS19116.1; -. [O35219-1] DR CCDS; CCDS80224.1; -. [O35219-3] DR RefSeq; NP_001281091.1; NM_001294162.1. DR AlphaFoldDB; O35219; -. DR BMRB; O35219; -. DR SMR; O35219; -. DR ComplexPortal; CPX-3197; Voltage-gated potassium channel complex variant 2. DR ComplexPortal; CPX-3198; Voltage-gated potassium channel complex variant 1. DR IntAct; O35219; 31. DR STRING; 10090.ENSMUSP00000047705; -. DR GlyCosmos; O35219; 1 site, No reported glycans. DR GlyGen; O35219; 1 site. DR iPTMnet; O35219; -. DR PhosphoSitePlus; O35219; -. DR jPOST; O35219; -. DR MaxQB; O35219; -. DR PaxDb; 10090-ENSMUSP00000047705; -. DR PeptideAtlas; O35219; -. DR ProteomicsDB; 269265; -. [O35219-1] DR ProteomicsDB; 269266; -. [O35219-2] DR ProteomicsDB; 269267; -. [O35219-3] DR DNASU; 16511; -. DR GeneID; 16511; -. DR KEGG; mmu:16511; -. DR UCSC; uc008wrb.1; mouse. [O35219-3] DR AGR; MGI:1341722; -. DR CTD; 3757; -. DR MGI; MGI:1341722; Kcnh2. DR eggNOG; KOG0498; Eukaryota. DR InParanoid; O35219; -. DR OrthoDB; 66005at2759; -. DR PhylomeDB; O35219; -. DR Reactome; R-MMU-1296072; Voltage gated Potassium channels. DR Reactome; R-MMU-5576890; Phase 3 - rapid repolarisation. DR BioGRID-ORCS; 16511; 0 hits in 78 CRISPR screens. DR ChiTaRS; Erg; mouse. DR PRO; PR:O35219; -. DR Proteomes; UP000000589; Unplaced. DR RNAct; O35219; Protein. DR GO; GO:0009986; C:cell surface; ISO:MGI. DR GO; GO:1902937; C:inward rectifier potassium channel complex; ISO:MGI. DR GO; GO:0048471; C:perinuclear region of cytoplasm; ISO:MGI. DR GO; GO:0005886; C:plasma membrane; ISO:MGI. DR GO; GO:0008076; C:voltage-gated potassium channel complex; ISO:MGI. DR GO; GO:0055131; F:C3HC4-type RING finger domain binding; ISO:MGI. DR GO; GO:0005251; F:delayed rectifier potassium channel activity; ISO:MGI. DR GO; GO:0042802; F:identical protein binding; ISO:MGI. DR GO; GO:0005242; F:inward rectifier potassium channel activity; IDA:MGI. DR GO; GO:0005216; F:monoatomic ion channel activity; ISO:MGI. DR GO; GO:0005267; F:potassium channel activity; ISO:MGI. DR GO; GO:0042803; F:protein homodimerization activity; ISO:MGI. DR GO; GO:0044877; F:protein-containing complex binding; ISO:MGI. DR GO; GO:0097110; F:scaffold protein binding; ISO:MGI. DR GO; GO:0000976; F:transcription cis-regulatory region binding; ISO:MGI. DR GO; GO:0031625; F:ubiquitin protein ligase binding; ISO:MGI. DR GO; GO:0005249; F:voltage-gated potassium channel activity; IDA:MGI. DR GO; GO:1902282; F:voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization; ISO:MGI. DR GO; GO:0060048; P:cardiac muscle contraction; ISO:MGI. DR GO; GO:0071466; P:cellular response to xenobiotic stimulus; ISO:MGI. DR GO; GO:0086010; P:membrane depolarization during action potential; ISO:MGI. DR GO; GO:0086009; P:membrane repolarization; ISO:MGI. DR GO; GO:0086011; P:membrane repolarization during action potential; ISO:MGI. DR GO; GO:0086013; P:membrane repolarization during cardiac muscle cell action potential; ISO:MGI. DR GO; GO:0098915; P:membrane repolarization during ventricular cardiac muscle cell action potential; ISO:MGI. DR GO; GO:1903765; P:negative regulation of potassium ion export across plasma membrane; ISO:MGI. DR GO; GO:1901380; P:negative regulation of potassium ion transmembrane transport; ISO:MGI. DR GO; GO:0045893; P:positive regulation of DNA-templated transcription; ISO:MGI. DR GO; GO:1901381; P:positive regulation of potassium ion transmembrane transport; ISO:MGI. DR GO; GO:0097623; P:potassium ion export across plasma membrane; ISO:MGI. DR GO; GO:0055075; P:potassium ion homeostasis; ISO:MGI. DR GO; GO:1990573; P:potassium ion import across plasma membrane; ISO:MGI. DR GO; GO:0071805; P:potassium ion transmembrane transport; IDA:MGI. DR GO; GO:0006813; P:potassium ion transport; ISO:MGI. DR GO; GO:0086091; P:regulation of heart rate by cardiac conduction; IDA:MGI. DR GO; GO:0042391; P:regulation of membrane potential; IDA:MGI. DR GO; GO:0060306; P:regulation of membrane repolarization; ISO:MGI. DR GO; GO:1901379; P:regulation of potassium ion transmembrane transport; ISO:MGI. DR GO; GO:0060307; P:regulation of ventricular cardiac muscle cell membrane repolarization; IDA:MGI. DR GO; GO:0086005; P:ventricular cardiac muscle cell action potential; ISO:MGI. DR CDD; cd00038; CAP_ED; 1. DR CDD; cd00130; PAS; 1. DR Gene3D; 1.10.1200.260; -; 1. DR Gene3D; 1.10.287.70; -; 1. DR Gene3D; 2.60.120.10; Jelly Rolls; 1. DR Gene3D; 3.30.450.20; PAS domain; 1. DR InterPro; IPR000595; cNMP-bd_dom. DR InterPro; IPR018490; cNMP-bd_dom_sf. DR InterPro; IPR005821; Ion_trans_dom. DR InterPro; IPR003938; K_chnl_volt-dep_EAG/ELK/ERG. DR InterPro; IPR003967; K_chnl_volt-dep_ERG. DR InterPro; IPR001610; PAC. DR InterPro; IPR000014; PAS. DR InterPro; IPR000700; PAS-assoc_C. DR InterPro; IPR035965; PAS-like_dom_sf. DR InterPro; IPR014710; RmlC-like_jellyroll. DR NCBIfam; TIGR00229; sensory_box; 1. DR PANTHER; PTHR10217:SF506; POTASSIUM VOLTAGE-GATED CHANNEL SUBFAMILY H MEMBER 2; 1. DR PANTHER; PTHR10217; VOLTAGE AND LIGAND GATED POTASSIUM CHANNEL; 1. DR Pfam; PF00027; cNMP_binding; 1. DR Pfam; PF00520; Ion_trans; 1. DR Pfam; PF13426; PAS_9; 1. DR PRINTS; PR01463; EAGCHANLFMLY. DR PRINTS; PR01470; ERGCHANNEL. DR SMART; SM00100; cNMP; 1. DR SMART; SM00086; PAC; 1. DR SUPFAM; SSF51206; cAMP-binding domain-like; 1. DR SUPFAM; SSF55785; PYP-like sensor domain (PAS domain); 1. DR SUPFAM; SSF81324; Voltage-gated potassium channels; 1. DR PROSITE; PS50042; CNMP_BINDING_3; 1. DR PROSITE; PS50113; PAC; 1. DR PROSITE; PS50112; PAS; 1. PE 1: Evidence at protein level; KW Alternative splicing; Cell membrane; Glycoprotein; Ion channel; KW Ion transport; Membrane; Methylation; Phosphoprotein; Potassium; KW Potassium channel; Potassium transport; Reference proteome; Transmembrane; KW Transmembrane helix; Transport; Voltage-gated channel. FT CHAIN 1..1162 FT /note="Potassium voltage-gated channel subfamily H member FT 2" FT /id="PRO_0000054000" FT TOPO_DOM 1..405 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 406..426 FT /note="Helical; Name=Segment S1" FT /evidence="ECO:0000255" FT TOPO_DOM 427..452 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 453..473 FT /note="Helical; Name=Segment S2" FT /evidence="ECO:0000255" FT TOPO_DOM 474..497 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 498..518 FT /note="Helical; Name=Segment S3" FT /evidence="ECO:0000255" FT TOPO_DOM 519..522 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 523..543 FT /note="Helical; Voltage-sensor; Name=Segment S4" FT /evidence="ECO:0000255" FT TOPO_DOM 544..549 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 550..570 FT /note="Helical; Name=Segment S5" FT /evidence="ECO:0000255" FT TOPO_DOM 571..613 FT /note="Extracellular" FT /evidence="ECO:0000255" FT INTRAMEM 614..634 FT /note="Pore-forming; Name=Segment H5" FT /evidence="ECO:0000255" FT TOPO_DOM 635..640 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 641..661 FT /note="Helical; Name=Segment S6" FT /evidence="ECO:0000255" FT TOPO_DOM 662..1162 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT DOMAIN 17..88 FT /note="PAS" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00140" FT DOMAIN 92..144 FT /note="PAC" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00141" FT REGION 233..316 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 873..991 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 1125..1162 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT MOTIF 626..631 FT /note="Selectivity filter" FT /evidence="ECO:0000250" FT COMPBIAS 256..281 FT /note="Polar residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT COMPBIAS 933..951 FT /note="Polar residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT BINDING 744..861 FT /ligand="a nucleoside 3',5'-cyclic phosphate" FT /ligand_id="ChEBI:CHEBI:58464" FT MOD_RES 239 FT /note="Phosphoserine" FT /evidence="ECO:0000250|UniProtKB:Q12809" FT MOD_RES 241 FT /note="Phosphoserine" FT /evidence="ECO:0007744|PubMed:21183079" FT MOD_RES 245 FT /note="Phosphoserine" FT /evidence="ECO:0007744|PubMed:21183079" FT MOD_RES 285 FT /note="Phosphoserine" FT /evidence="ECO:0007744|PubMed:21183079" FT MOD_RES 286 FT /note="Phosphoserine" FT /evidence="ECO:0007744|PubMed:21183079" FT MOD_RES 322 FT /note="Phosphoserine" FT /evidence="ECO:0007744|PubMed:21183079" FT MOD_RES 353 FT /note="Phosphoserine" FT /evidence="ECO:0000250|UniProtKB:O08962" FT MOD_RES 873 FT /note="Phosphoserine" FT /evidence="ECO:0007744|PubMed:21183079" FT MOD_RES 876 FT /note="Phosphoserine" FT /evidence="ECO:0007744|PubMed:21183079" FT MOD_RES 1017 FT /note="Omega-N-methylarginine" FT /evidence="ECO:0007744|PubMed:24129315" FT MOD_RES 1140 FT /note="Phosphoserine" FT /evidence="ECO:0007744|PubMed:21183079" FT CARBOHYD 600 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT VAR_SEQ 1..378 FT /note="MPVRRGHVAPQNTFLDTIIRKFEGQSRKFIIANARVENCAVIYCNDGFCELC FT GYSRAEVMQRPCTCDFLHGPRTQRRAAAQIAQALLGAEERKVEIAFYRKDGSCFLCLVD FT VVPVKNEDGAVIMFILNFEVVMEKDMVGSPAHDTNHRGPSTSWLASGRAKTFRLKLPAL FT LALTARESSVRTGSMHSAGAPGAVVVDVDLTPAAPSSESLALDEVSAMDNHVAGLGPAE FT ERRALVGPGSASPVASIRGPHPSPRAQSLNPDASGSSCSLARTRSRESCASVRRASSAD FT DIEAMRAGALPPPPRHASTGAMHPLRSGLLNSTSDSDLVRYRTISKIPQITLNFVDLKG FT DPFLASPTSDREIIAPKIKERTHNVTEKVTQ -> MAIPTGKESRTGALQPRAQKGRVR FT RAVRISSLVAQE (in isoform 3)" FT /evidence="ECO:0000303|PubMed:9351446, FT ECO:0000303|PubMed:9351462" FT /id="VSP_000970" FT VAR_SEQ 1..59 FT /note="Missing (in isoform 2)" FT /evidence="ECO:0000303|PubMed:9351462" FT /id="VSP_000969" FT VARIANT 186 FT /note="H -> R (in strain: BALB/c)" FT /evidence="ECO:0000269|PubMed:9351462" FT VARIANT 455 FT /note="A -> T (in strain: BALB/c)" FT /evidence="ECO:0000269|PubMed:9351462" FT VARIANT 752 FT /note="C -> Y (in strain: BALB/c)" FT /evidence="ECO:0000269|PubMed:9351462" FT VARIANT 1006 FT /note="D -> N (in strain: BALB/c)" FT /evidence="ECO:0000269|PubMed:9351462" SQ SEQUENCE 1162 AA; 126886 MW; A9455F7F10B61E46 CRC64; MPVRRGHVAP QNTFLDTIIR KFEGQSRKFI IANARVENCA VIYCNDGFCE LCGYSRAEVM QRPCTCDFLH GPRTQRRAAA QIAQALLGAE ERKVEIAFYR KDGSCFLCLV DVVPVKNEDG AVIMFILNFE VVMEKDMVGS PAHDTNHRGP STSWLASGRA KTFRLKLPAL LALTARESSV RTGSMHSAGA PGAVVVDVDL TPAAPSSESL ALDEVSAMDN HVAGLGPAEE RRALVGPGSA SPVASIRGPH PSPRAQSLNP DASGSSCSLA RTRSRESCAS VRRASSADDI EAMRAGALPP PPRHASTGAM HPLRSGLLNS TSDSDLVRYR TISKIPQITL NFVDLKGDPF LASPTSDREI IAPKIKERTH NVTEKVTQVL SLGADVLPEY KLQAPRIHRW TILHYSPFKA VWDWLILLLV IYTAVFTPYS AAFLLKETED GSQAPDCGYA CQPLAVVDLI VDIMFIVDIL INFRTTYVNA NEEVVSHPGR IAVHYFKGWF LIDMVAAIPF DLLIFGSGSE ELIGLLKTAR LLRLVRVARK LDRYSEYGAA VLFLLMCTFA LIAHWLACIW YAIGNMEQPH MDSHIGWLHN LGDQIGKPYN SSGLGGPSIK DKYVTALYFT FSSLTSVGFG NVSPNTNSEK IFSICVMLIG SLMYASIFGN VSAIIQRLYS GTARYHTQML RVREFIRFHQ IPNPLRQRLE EYFQHAWSYT NGIDMNAVLK GFPECLQADI CLHLNRSLLQ HCKPFRGATK GCLRALAMKF KTTHAPPGDT LVHAGDLLTA LYFISRGSIE ILRGDVVVAI LGKNDIFGEP LNLYARPGKS NGDVRALTYC DLHKIHRDDL LEVLDMYPEF SDHFWSSLEI TFNLRDTNMI PGSPGSAELE SGFNRQRKRK LSFRRRTDKD TEQPGEVSAL GQGPARVGPG PSCRGQPGGP WGESPSSGPS SPESSEDEGP GRSSSPLRLV PFSSPRPPGD PPGGEPLTED GEKSDTCNPL SGAFSGVSNI FSFWGDSRGR QYQELPRCPA PAPSLLNIPL SSPGRRSRGD VESRLDALQR QLNRLETRLS ADMATVLQLL QRQMTLVPPA YSAVTTPGPG PTSASPLLPV GPVPTLTLDS LSQVSQFVAF EELPAGAPEL PQDGPTRRLS LPGQLGALTS QPLHRHGSDP GS //