ID KCNAE_DROME Reviewed; 1174 AA. AC Q02280; Q9VXZ6; DT 01-JUL-1993, integrated into UniProtKB/Swiss-Prot. DT 21-JUN-2005, sequence version 2. DT 27-MAR-2024, entry version 197. DE RecName: Full=Potassium voltage-gated channel protein eag; DE AltName: Full=Ether-a-go-go protein; GN Name=eag; ORFNames=CG10952; OS Drosophila melanogaster (Fruit fly). OC Eukaryota; Metazoa; Ecdysozoa; Arthropoda; Hexapoda; Insecta; Pterygota; OC Neoptera; Endopterygota; Diptera; Brachycera; Muscomorpha; Ephydroidea; OC Drosophilidae; Drosophila; Sophophora. OX NCBI_TaxID=7227; RN [1] RP NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, AND DISRUPTION PHENOTYPE. RC TISSUE=Head; RX PubMed=1840699; DOI=10.1126/science.1840699; RA Warmke J., Drysdale R.A., Ganetzky B.; RT "A distinct potassium channel polypeptide encoded by the Drosophila eag RT locus."; RL Science 252:1560-1562(1991). RN [2] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=Berkeley; RX PubMed=10731132; DOI=10.1126/science.287.5461.2185; RA Adams M.D., Celniker S.E., Holt R.A., Evans C.A., Gocayne J.D., RA Amanatides P.G., Scherer S.E., Li P.W., Hoskins R.A., Galle R.F., RA George R.A., Lewis S.E., Richards S., Ashburner M., Henderson S.N., RA Sutton G.G., Wortman J.R., Yandell M.D., Zhang Q., Chen L.X., Brandon R.C., RA Rogers Y.-H.C., Blazej R.G., Champe M., Pfeiffer B.D., Wan K.H., Doyle C., RA Baxter E.G., Helt G., Nelson C.R., Miklos G.L.G., Abril J.F., Agbayani A., RA An H.-J., Andrews-Pfannkoch C., Baldwin D., Ballew R.M., Basu A., RA Baxendale J., Bayraktaroglu L., Beasley E.M., Beeson K.Y., Benos P.V., RA Berman B.P., Bhandari D., Bolshakov S., Borkova D., Botchan M.R., Bouck J., RA Brokstein P., Brottier P., Burtis K.C., Busam D.A., Butler H., Cadieu E., RA Center A., Chandra I., Cherry J.M., Cawley S., Dahlke C., Davenport L.B., RA Davies P., de Pablos B., Delcher A., Deng Z., Mays A.D., Dew I., RA Dietz S.M., Dodson K., Doup L.E., Downes M., Dugan-Rocha S., Dunkov B.C., RA Dunn P., Durbin K.J., Evangelista C.C., Ferraz C., Ferriera S., RA Fleischmann W., Fosler C., Gabrielian A.E., Garg N.S., Gelbart W.M., RA Glasser K., Glodek A., Gong F., Gorrell J.H., Gu Z., Guan P., Harris M., RA Harris N.L., Harvey D.A., Heiman T.J., Hernandez J.R., Houck J., Hostin D., RA Houston K.A., Howland T.J., Wei M.-H., Ibegwam C., Jalali M., Kalush F., RA Karpen G.H., Ke Z., Kennison J.A., Ketchum K.A., Kimmel B.E., Kodira C.D., RA Kraft C.L., Kravitz S., Kulp D., Lai Z., Lasko P., Lei Y., Levitsky A.A., RA Li J.H., Li Z., Liang Y., Lin X., Liu X., Mattei B., McIntosh T.C., RA McLeod M.P., McPherson D., Merkulov G., Milshina N.V., Mobarry C., RA Morris J., Moshrefi A., Mount S.M., Moy M., Murphy B., Murphy L., RA Muzny D.M., Nelson D.L., Nelson D.R., Nelson K.A., Nixon K., Nusskern D.R., RA Pacleb J.M., Palazzolo M., Pittman G.S., Pan S., Pollard J., Puri V., RA Reese M.G., Reinert K., Remington K., Saunders R.D.C., Scheeler F., RA Shen H., Shue B.C., Siden-Kiamos I., Simpson M., Skupski M.P., Smith T.J., RA Spier E., Spradling A.C., Stapleton M., Strong R., Sun E., Svirskas R., RA Tector C., Turner R., Venter E., Wang A.H., Wang X., Wang Z.-Y., RA Wassarman D.A., Weinstock G.M., Weissenbach J., Williams S.M., Woodage T., RA Worley K.C., Wu D., Yang S., Yao Q.A., Ye J., Yeh R.-F., Zaveri J.S., RA Zhan M., Zhang G., Zhao Q., Zheng L., Zheng X.H., Zhong F.N., Zhong W., RA Zhou X., Zhu S.C., Zhu X., Smith H.O., Gibbs R.A., Myers E.W., Rubin G.M., RA Venter J.C.; RT "The genome sequence of Drosophila melanogaster."; RL Science 287:2185-2195(2000). RN [3] RP GENOME REANNOTATION. RC STRAIN=Berkeley; RX PubMed=12537572; DOI=10.1186/gb-2002-3-12-research0083; RA Misra S., Crosby M.A., Mungall C.J., Matthews B.B., Campbell K.S., RA Hradecky P., Huang Y., Kaminker J.S., Millburn G.H., Prochnik S.E., RA Smith C.D., Tupy J.L., Whitfield E.J., Bayraktaroglu L., Berman B.P., RA Bettencourt B.R., Celniker S.E., de Grey A.D.N.J., Drysdale R.A., RA Harris N.L., Richter J., Russo S., Schroeder A.J., Shu S.Q., Stapleton M., RA Yamada C., Ashburner M., Gelbart W.M., Rubin G.M., Lewis S.E.; RT "Annotation of the Drosophila melanogaster euchromatic genome: a systematic RT review."; RL Genome Biol. 3:RESEARCH0083.1-RESEARCH0083.22(2002). RN [4] RP DISRUPTION PHENOTYPE. RX PubMed=10934243; DOI=10.1523/jneurosci.20-16-05958.2000; RA Wang J.W., Humphreys J.M., Phillips J.P., Hilliker A.J., Wu C.F.; RT "A novel leg-shaking Drosophila mutant defective in a voltage-gated RT K(+)current and hypersensitive to reactive oxygen species."; RL J. Neurosci. 20:5958-5964(2000). RN [5] RP FUNCTION. RX PubMed=11517334; DOI=10.1073/pnas.191107698; RA Yager J., Richards S., Hekmat-Scafe D.S., Hurd D.D., Sundaresan V., RA Caprette D.R., Saxton W.M., Carlson J.R., Stern M.; RT "Control of Drosophila perineurial glial growth by interacting RT neurotransmitter-mediated signaling pathways."; RL Proc. Natl. Acad. Sci. U.S.A. 98:10445-10450(2001). RN [6] RP FUNCTION, PHOSPHORYLATION AT THR-787, MUTAGENESIS OF THR-787, AND TISSUE RP SPECIFICITY. RX PubMed=11980904; DOI=10.1074/jbc.m201949200; RA Wang Z., Wilson G.F., Griffith L.C.; RT "Calcium/calmodulin-dependent protein kinase II phosphorylates and RT regulates the Drosophila eag potassium channel."; RL J. Biol. Chem. 277:24022-24029(2002). RN [7] RP FUNCTION, INTERACTION WITH CASK, AND SUBCELLULAR LOCATION. RX PubMed=15901771; DOI=10.1523/jneurosci.4566-04.2005; RA Marble D.D., Hegle A.P., Snyder E.D. II, Dimitratos S., Bryant P.J., RA Wilson G.F.; RT "Camguk/CASK enhances Ether-a-go-go potassium current by a phosphorylation- RT dependent mechanism."; RL J. Neurosci. 25:4898-4907(2005). CC -!- FUNCTION: Structural component of a potassium channel. Mediates the CC potassium permeability of membranes; potassium current is regulated by CC CaMKII and CASK. Has a role in growth of the perineurial glial layer of CC the larval peripheral nerve. {ECO:0000269|PubMed:11517334, CC ECO:0000269|PubMed:11980904, ECO:0000269|PubMed:15901771, CC ECO:0000269|PubMed:1840699}. CC -!- SUBUNIT: The voltage-dependent potassium channel is a heterotetramer of CC potassium channel proteins (By similarity). Interaction with CASK. CC {ECO:0000250}. CC -!- INTERACTION: CC Q02280; Q24210: CASK; NbExp=10; IntAct=EBI-85304, EBI-214423; CC -!- SUBCELLULAR LOCATION: Membrane {ECO:0000269|PubMed:15901771}; Multi- CC pass membrane protein {ECO:0000269|PubMed:15901771}. Note=Eag recruits CC CASK to the plasma membrane. CC -!- TISSUE SPECIFICITY: Expressed in the axon and the terminal boutons of CC motor neurons. {ECO:0000269|PubMed:11980904}. CC -!- PTM: When in complex with CASK, the efficiency of Thr-787 CC phosphorylation is increased. {ECO:0000269|PubMed:11980904}. CC -!- DISRUPTION PHENOTYPE: Increased growth of the perineurial glial layer CC of the larval peripheral nerve (PubMed:1840699). Hyperexcitability at CC the larval neuromuscular junction (NMJ) and memory formation defects in CC the adult (PubMed:1840699). Hypersensitivity to reactive oxygen species CC generated by the redox-cycling agent paraquat (PubMed:10934243). CC {ECO:0000269|PubMed:10934243, ECO:0000269|PubMed:1840699}. CC -!- MISCELLANEOUS: 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 -!- MISCELLANEOUS: The segment H5 is thought to line the channel pore. CC -!- SIMILARITY: Belongs to the potassium channel family. H (Eag) CC (TC 1.A.1.20) subfamily. Eag 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; M61157; AAA28495.1; -; mRNA. DR EMBL; AE014298; AAF48410.1; -; Genomic_DNA. DR PIR; A40853; A40853. DR RefSeq; NP_511158.2; NM_078603.4. DR PDB; 5FG8; X-ray; 1.96 A; B=768-820. DR PDB; 5H9B; X-ray; 2.25 A; B=770-820. DR PDB; 5HU3; X-ray; 1.89 A; B=768-820. DR PDBsum; 5FG8; -. DR PDBsum; 5H9B; -. DR PDBsum; 5HU3; -. DR AlphaFoldDB; Q02280; -. DR SMR; Q02280; -. DR BioGRID; 58786; 8. DR IntAct; Q02280; 3. DR STRING; 7227.FBpp0110308; -. DR TCDB; 1.A.1.20.6; the voltage-gated ion channel (vic) superfamily. DR GlyCosmos; Q02280; 3 sites, No reported glycans. DR GlyGen; Q02280; 3 sites. DR iPTMnet; Q02280; -. DR PaxDb; 7227-FBpp0110308; -. DR EnsemblMetazoa; FBtr0073955; FBpp0073772; FBgn0000535. DR GeneID; 32428; -. DR KEGG; dme:Dmel_CG10952; -. DR AGR; FB:FBgn0000535; -. DR CTD; 32428; -. DR FlyBase; FBgn0000535; eag. DR VEuPathDB; VectorBase:FBgn0000535; -. DR eggNOG; KOG0501; Eukaryota. DR GeneTree; ENSGT00940000155793; -. DR HOGENOM; CLU_005746_3_1_1; -. DR InParanoid; Q02280; -. DR PhylomeDB; Q02280; -. DR Reactome; R-DME-1296072; Voltage gated Potassium channels. DR BioGRID-ORCS; 32428; 0 hits in 3 CRISPR screens. DR GenomeRNAi; 32428; -. DR PRO; PR:Q02280; -. DR Proteomes; UP000000803; Chromosome X. DR Bgee; FBgn0000535; Expressed in brain and 7 other cell types or tissues. DR ExpressionAtlas; Q02280; baseline and differential. DR GO; GO:0005886; C:plasma membrane; IDA:FlyBase. DR GO; GO:0008076; C:voltage-gated potassium channel complex; IPI:FlyBase. DR GO; GO:0044325; F:transmembrane transporter binding; IPI:FlyBase. DR GO; GO:0022843; F:voltage-gated monoatomic cation channel activity; IDA:FlyBase. DR GO; GO:0005249; F:voltage-gated potassium channel activity; IDA:FlyBase. DR GO; GO:0048150; P:behavioral response to ether; NAS:FlyBase. DR GO; GO:0007619; P:courtship behavior; TAS:FlyBase. DR GO; GO:0007612; P:learning; IMP:FlyBase. DR GO; GO:0007611; P:learning or memory; NAS:FlyBase. DR GO; GO:0042066; P:perineurial glial growth; IGI:FlyBase. DR GO; GO:0071805; P:potassium ion transmembrane transport; IBA:GO_Central. DR GO; GO:0006813; P:potassium ion transport; TAS:FlyBase. DR GO; GO:0008016; P:regulation of heart contraction; NAS:FlyBase. DR GO; GO:0042391; P:regulation of membrane potential; IBA:GO_Central. DR GO; GO:0007608; P:sensory perception of smell; NAS:FlyBase. 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; IPR003949; K_chnl_volt-dep_EAG. DR InterPro; IPR003938; K_chnl_volt-dep_EAG/ELK/ERG. DR InterPro; IPR000014; PAS. DR InterPro; IPR000700; PAS-assoc_C. DR InterPro; IPR035965; PAS-like_dom_sf. DR InterPro; IPR014710; RmlC-like_jellyroll. DR PANTHER; PTHR10217:SF435; POTASSIUM VOLTAGE-GATED CHANNEL PROTEIN EAG; 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; PR01464; EAGCHANNEL. DR SMART; SM00100; cNMP; 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. DR Genevisible; Q02280; DM. PE 1: Evidence at protein level; KW 3D-structure; Developmental protein; Differentiation; Glycoprotein; KW Ion channel; Ion transport; Membrane; Neurogenesis; Phosphoprotein; KW Potassium; Potassium channel; Potassium transport; Reference proteome; KW Repeat; Transmembrane; Transmembrane helix; Transport; KW Voltage-gated channel. FT CHAIN 1..1174 FT /note="Potassium voltage-gated channel protein eag" FT /id="PRO_0000053964" FT TOPO_DOM 1..226 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 227..246 FT /note="Helical; Name=Segment S1" FT /evidence="ECO:0000255" FT TOPO_DOM 247..268 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 269..291 FT /note="Helical; Name=Segment S2" FT /evidence="ECO:0000255" FT TOPO_DOM 292..313 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 314..335 FT /note="Helical; Name=Segment S3" FT /evidence="ECO:0000255" FT TOPO_DOM 336..342 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 343..369 FT /note="Helical; Voltage-sensor; Name=Segment S4" FT /evidence="ECO:0000255" FT TOPO_DOM 370..371 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT TRANSMEM 372..393 FT /note="Helical; Name=Segment S5" FT /evidence="ECO:0000255" FT TOPO_DOM 394..441 FT /note="Extracellular" FT /evidence="ECO:0000255" FT INTRAMEM 442..467 FT /note="Pore-forming; Name=Segment H5" FT /evidence="ECO:0000255" FT TOPO_DOM 468..470 FT /note="Extracellular" FT /evidence="ECO:0000255" FT TRANSMEM 471..493 FT /note="Helical; Name=Segment S6" FT /evidence="ECO:0000255" FT TOPO_DOM 494..1174 FT /note="Cytoplasmic" FT /evidence="ECO:0000255" FT DOMAIN 43..97 FT /note="PAS" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00140" FT DOMAIN 113..165 FT /note="PAC" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00141" FT REGION 742..763 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 778..842 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 865..884 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 930..977 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 1022..1097 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 1115..1174 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT MOTIF 453..458 FT /note="Selectivity filter" FT /evidence="ECO:0000250" FT COMPBIAS 818..832 FT /note="Polar residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT COMPBIAS 867..883 FT /note="Polar residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT COMPBIAS 1071..1095 FT /note="Polar residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT COMPBIAS 1115..1166 FT /note="Polar residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT BINDING 571..688 FT /ligand="a nucleoside 3',5'-cyclic phosphate" FT /ligand_id="ChEBI:CHEBI:58464" FT MOD_RES 787 FT /note="Phosphothreonine; by CaMK2" FT /evidence="ECO:0000269|PubMed:11980904" FT CARBOHYD 262 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 412 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 424 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT MUTAGEN 787 FT /note="T->A: Reduced eag channel amplitude and accelerated FT inactivation. Does not affect binding with CASK." FT /evidence="ECO:0000269|PubMed:11980904" FT CONFLICT 548 FT /note="Y -> C (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 567 FT /note="N -> D (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 571 FT /note="A -> T (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 699 FT /note="K -> R (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 769 FT /note="F -> L (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 894 FT /note="I -> V (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 934 FT /note="G -> S (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 1015 FT /note="N -> D (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 1042 FT /note="R -> G (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 1049 FT /note="K -> E (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 1088 FT /note="T -> A (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT CONFLICT 1142 FT /note="T -> I (in Ref. 1; AAA28495)" FT /evidence="ECO:0000305" FT STRAND 788..791 FT /evidence="ECO:0007829|PDB:5FG8" SQ SEQUENCE 1174 AA; 126371 MW; B8F86ACBB5627FD3 CRC64; MPGGRRGLVA PQNTFLENII RRSNSQPDSS FLLANAQIVD FPIVYCNESF CKISGYNRAE VMQKSCRYVC GFMYGELTDK ETVGRLEYTL ENQQQDQFEI LLYKKNNLQC GCALSQFGKA QTQETPLWLL LQVAPIRNER DLVVLFLLTF RDITALKQPI DSEDTKGVLG LSKFAKLARS VTRSRQFSAH LPTLKDPTKQ SNLAHMMSLS ADIMPQYRQE APKTPPHILL HYCAFKAIWD WVILCLTFYT AIMVPYNVAF KNKTSEDVSL LVVDSIVDVI FFIDIVLNFH TTFVGPGGEV VSDPKVIRMN YLKSWFIIDL LSCLPYDVFN AFDRDEDGIG SLFSALKVVR LLRLGRVVRK LDRYLEYGAA MLILLLCFYM LVAHWLACIW YSIGRSDADN GIQYSWLWKL ANVTQSPYSY IWSNDTGPEL VNGPSRKSMY VTALYFTMTC MTSVGFGNVA AETDNEKVFT ICMMIIAALL YATIFGHVTT IIQQMTSATA KYHDMLNNVR EFMKLHEVPK ALSERVMDYV VSTWAMTKGL DTEKVLNYCP KDMKADICVH LNRKVFNEHP AFRLASDGCL RALAMHFMMS HSAPGDLLYH TGESIDSLCF IVTGSLEVIQ DDEVVAILGK GDVFGDQFWK DSAVGQSAAN VRALTYCDLH AIKRDKLLEV LDFYSAFANS FARNLVLTYN LRHRLIFRKV ADVKREKELA ERRKNEPQLP QNQDHLVRKI FSKFRRTPQV QAGSKELVGG SGQSDVEKGD GEVERTKVFP KAPKLQASQA TLARQDTIDE GGEVDSSPPS RDSRVVIEGA AVSSATVGPS PPVATTSSAA AGAGVSGGPG SGGTVVAIVT KADRNLALER ERQIEMASSR ATTSDTYDTG LRETPPTLAQ RDLIATVLDM KVDVRLELQR MQQRIGRIED LLGELVKRLA PGAGSGGNAP DNSSGQTTPG DEICAGCGAG GGGTPTTQAP PTSAVTSPVD TVITISSPGA SGSGSGTGAG AGSAVAGAGG AGLLNPGATV VSSAGGNGLG PLMLKKRRSK SRKAPAPPKQ TLASTAGTAT AAPAGVAGSG MTSSAPASAD QQQQHQSTAD QSPTTPGAEL LHLRLLEEDF TAAQLPSTSS GGAGGGGGSG SGATPTTPPP TTAGGSGSGT PTSTTATTTP TGSGTATRGK LDFL //