ID SCNND_HUMAN Reviewed; 802 AA. AC P51172; A6NNF7; A9Z1X6; B1PS44; B3KSD7; Q08AQ3; Q09HT0; Q5T7L3; Q8NA24; DT 01-OCT-1996, integrated into UniProtKB/Swiss-Prot. DT 16-JAN-2019, sequence version 3. DT 27-MAR-2024, entry version 188. DE RecName: Full=Amiloride-sensitive sodium channel subunit delta; DE AltName: Full=Delta-NaCH; DE AltName: Full=Epithelial Na(+) channel subunit delta; DE Short=Delta-ENaC; DE Short=ENaCD; DE AltName: Full=Nonvoltage-gated sodium channel 1 subunit delta; DE AltName: Full=SCNED; GN Name=SCNN1D; Synonyms=DNACH; OS Homo sapiens (Human). OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; OC Homo. OX NCBI_TaxID=9606; RN [1] RP NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), VARIANT TYR-696, FUNCTION, AND RP SUBUNIT. RX PubMed=7499195; DOI=10.1074/jbc.270.46.27411; RA Waldmann R., Champigny G., Bassilana F., Voilley N., Lazdunski M.; RT "Molecular cloning and functional expression of a novel amiloride-sensitive RT Na+ channel."; RL J. Biol. Chem. 270:27411-27414(1995). RN [2] RP NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2), FUNCTION, AND SUBUNIT. RC TISSUE=Lung; RX PubMed=16423824; DOI=10.1074/jbc.m512293200; RA Ji H.L., Su X.F., Kedar S., Li J., Barbry P., Smith P.R., Matalon S., RA Benos D.J.; RT "Delta-subunit confers novel biophysical features to alpha beta gamma-human RT epithelial sodium channel (ENaC) via a physical interaction."; RL J. Biol. Chem. 281:8233-8241(2006). RN [3] RP NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), SUBCELLULAR LOCATION, AND TOPOLOGY. RC TISSUE=Nasal epithelium; RX PubMed=19520916; DOI=10.1165/rcmb.2009-0053oc; RA Bangel-Ruland N., Sobczak K., Christmann T., Kentrup D., Langhorst H., RA Kusche-Vihrog K., Weber W.M.; RT "Characterization of the epithelial sodium channel delta-subunit in human RT nasal epithelium."; RL Am. J. Respir. Cell Mol. Biol. 42:498-505(2010). RN [4] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORMS 1 AND 2), AND VARIANTS RP SER-726 AND ARG-770. RC TISSUE=Hippocampus, and Testis; RX PubMed=14702039; DOI=10.1038/ng1285; RA Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., RA Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., RA Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S., RA Yamamoto J., Saito K., Kawai Y., Isono Y., Nakamura Y., Nagahari K., RA Murakami K., Yasuda T., Iwayanagi T., Wagatsuma M., Shiratori A., Sudo H., RA Hosoiri T., Kaku Y., Kodaira H., Kondo H., Sugawara M., Takahashi M., RA Kanda K., Yokoi T., Furuya T., Kikkawa E., Omura Y., Abe K., Kamihara K., RA Katsuta N., Sato K., Tanikawa M., Yamazaki M., Ninomiya K., Ishibashi T., RA Yamashita H., Murakawa K., Fujimori K., Tanai H., Kimata M., Watanabe M., RA Hiraoka S., Chiba Y., Ishida S., Ono Y., Takiguchi S., Watanabe S., RA Yosida M., Hotuta T., Kusano J., Kanehori K., Takahashi-Fujii A., Hara H., RA Tanase T.-O., Nomura Y., Togiya S., Komai F., Hara R., Takeuchi K., RA Arita M., Imose N., Musashino K., Yuuki H., Oshima A., Sasaki N., RA Aotsuka S., Yoshikawa Y., Matsunawa H., Ichihara T., Shiohata N., Sano S., RA Moriya S., Momiyama H., Satoh N., Takami S., Terashima Y., Suzuki O., RA Nakagawa S., Senoh A., Mizoguchi H., Goto Y., Shimizu F., Wakebe H., RA Hishigaki H., Watanabe T., Sugiyama A., Takemoto M., Kawakami B., RA Yamazaki M., Watanabe K., Kumagai A., Itakura S., Fukuzumi Y., Fujimori Y., RA Komiyama M., Tashiro H., Tanigami A., Fujiwara T., Ono T., Yamada K., RA Fujii Y., Ozaki K., Hirao M., Ohmori Y., Kawabata A., Hikiji T., RA Kobatake N., Inagaki H., Ikema Y., Okamoto S., Okitani R., Kawakami T., RA Noguchi S., Itoh T., Shigeta K., Senba T., Matsumura K., Nakajima Y., RA Mizuno T., Morinaga M., Sasaki M., Togashi T., Oyama M., Hata H., RA Watanabe M., Komatsu T., Mizushima-Sugano J., Satoh T., Shirai Y., RA Takahashi Y., Nakagawa K., Okumura K., Nagase T., Nomura N., Kikuchi H., RA Masuho Y., Yamashita R., Nakai K., Yada T., Nakamura Y., Ohara O., RA Isogai T., Sugano S.; RT "Complete sequencing and characterization of 21,243 full-length human RT cDNAs."; RL Nat. Genet. 36:40-45(2004). RN [5] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RX PubMed=16710414; DOI=10.1038/nature04727; RA Gregory S.G., Barlow K.F., McLay K.E., Kaul R., Swarbreck D., Dunham A., RA Scott C.E., Howe K.L., Woodfine K., Spencer C.C.A., Jones M.C., Gillson C., RA Searle S., Zhou Y., Kokocinski F., McDonald L., Evans R., Phillips K., RA Atkinson A., Cooper R., Jones C., Hall R.E., Andrews T.D., Lloyd C., RA Ainscough R., Almeida J.P., Ambrose K.D., Anderson F., Andrew R.W., RA Ashwell R.I.S., Aubin K., Babbage A.K., Bagguley C.L., Bailey J., RA Beasley H., Bethel G., Bird C.P., Bray-Allen S., Brown J.Y., Brown A.J., RA Buckley D., Burton J., Bye J., Carder C., Chapman J.C., Clark S.Y., RA Clarke G., Clee C., Cobley V., Collier R.E., Corby N., Coville G.J., RA Davies J., Deadman R., Dunn M., Earthrowl M., Ellington A.G., Errington H., RA Frankish A., Frankland J., French L., Garner P., Garnett J., Gay L., RA Ghori M.R.J., Gibson R., Gilby L.M., Gillett W., Glithero R.J., RA Grafham D.V., Griffiths C., Griffiths-Jones S., Grocock R., Hammond S., RA Harrison E.S.I., Hart E., Haugen E., Heath P.D., Holmes S., Holt K., RA Howden P.J., Hunt A.R., Hunt S.E., Hunter G., Isherwood J., James R., RA Johnson C., Johnson D., Joy A., Kay M., Kershaw J.K., Kibukawa M., RA Kimberley A.M., King A., Knights A.J., Lad H., Laird G., Lawlor S., RA Leongamornlert D.A., Lloyd D.M., Loveland J., Lovell J., Lush M.J., RA Lyne R., Martin S., Mashreghi-Mohammadi M., Matthews L., Matthews N.S.W., RA McLaren S., Milne S., Mistry S., Moore M.J.F., Nickerson T., O'Dell C.N., RA Oliver K., Palmeiri A., Palmer S.A., Parker A., Patel D., Pearce A.V., RA Peck A.I., Pelan S., Phelps K., Phillimore B.J., Plumb R., Rajan J., RA Raymond C., Rouse G., Saenphimmachak C., Sehra H.K., Sheridan E., RA Shownkeen R., Sims S., Skuce C.D., Smith M., Steward C., Subramanian S., RA Sycamore N., Tracey A., Tromans A., Van Helmond Z., Wall M., Wallis J.M., RA White S., Whitehead S.L., Wilkinson J.E., Willey D.L., Williams H., RA Wilming L., Wray P.W., Wu Z., Coulson A., Vaudin M., Sulston J.E., RA Durbin R.M., Hubbard T., Wooster R., Dunham I., Carter N.P., McVean G., RA Ross M.T., Harrow J., Olson M.V., Beck S., Rogers J., Bentley D.R.; RT "The DNA sequence and biological annotation of human chromosome 1."; RL Nature 441:315-321(2006). RN [6] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1), AND VARIANTS PRO-344 RP AND GLN-544. RC TISSUE=Brain; RX PubMed=15489334; DOI=10.1101/gr.2596504; RG The MGC Project Team; RT "The status, quality, and expansion of the NIH full-length cDNA project: RT the Mammalian Gene Collection (MGC)."; RL Genome Res. 14:2121-2127(2004). RN [7] RP ALTERNATIVE SPLICING (ISOFORM 2). RX PubMed=22505667; DOI=10.1152/ajplung.00331.2011; RA Zhao R.Z., Nie H.G., Su X.F., Han D.Y., Lee A., Huang Y., Chang Y., RA Matalon S., Ji H.L.; RT "Characterization of a novel splice variant of delta ENaC subunit in human RT lungs."; RL Am. J. Physiol. 302:L1262-L1272(2012). RN [8] RP PHYLOGENETIC ANALYSIS, AND NOMENCLATURE. RX PubMed=26772908; DOI=10.1016/j.gene.2015.12.061; RA Hanukoglu I., Hanukoglu A.; RT "Epithelial sodium channel (ENaC) family: Phylogeny, structure-function, RT tissue distribution, and associated inherited diseases."; RL Gene 579:95-132(2016). CC -!- FUNCTION: Sodium permeable non-voltage-sensitive ion channel inhibited CC by the diuretic amiloride. Mediates the electrodiffusion of the luminal CC sodium (and water, which follows osmotically) through the apical CC membrane of epithelial cells. Controls the reabsorption of sodium in CC kidney, colon, lung and sweat glands. Also plays a role in taste CC perception. {ECO:0000269|PubMed:16423824, ECO:0000269|PubMed:7499195}. CC -!- SUBUNIT: Heterotrimer containing a delta/SCNN1D, a beta/SCNN1B and a CC gamma/SCNN1G subunit. The additional delta/SCNN1D subunit exists only CC in some organisms and can replace the alpha/SCNN1A subunit to form an CC alternative channel with specific properties. CC {ECO:0000269|PubMed:16423824, ECO:0000269|PubMed:7499195}. CC -!- INTERACTION: CC P51172; Q8N668: COMMD1; NbExp=3; IntAct=EBI-2547114, EBI-1550112; CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000269|PubMed:19520916}; CC Multi-pass membrane protein {ECO:0000269|PubMed:19520916}. CC -!- ALTERNATIVE PRODUCTS: CC Event=Alternative splicing; Named isoforms=3; CC Name=3; CC IsoId=P51172-3; Sequence=Displayed; CC Name=1; Synonyms=delta1; CC IsoId=P51172-1; Sequence=VSP_060000, VSP_060002; CC Name=2; Synonyms=delta2; CC IsoId=P51172-2; Sequence=VSP_060001; CC -!- MISCELLANEOUS: [Isoform 2]: Channels including isoform 2 exhibit CC greater conductance than those containing isoform 1. {ECO:0000305}. CC -!- SIMILARITY: Belongs to the amiloride-sensitive sodium channel CC (TC 1.A.6) family. SCNN1D 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; U38254; AAC50283.1; -; mRNA. DR EMBL; DQ898176; ABI64069.1; -; mRNA. DR EMBL; EU489064; ACA51868.1; -; mRNA. DR EMBL; AK093239; BAC04105.1; -; mRNA. DR EMBL; AK127357; BAG54495.1; -; mRNA. DR EMBL; AL162741; -; NOT_ANNOTATED_CDS; Genomic_DNA. DR EMBL; BC036752; AAH36752.1; -; mRNA. DR EMBL; BC125074; AAI25075.1; -; mRNA. DR CCDS; CCDS44037.2; -. [P51172-3] DR PIR; I39196; I39196. DR RefSeq; NP_001123885.2; NM_001130413.3. [P51172-3] DR RefSeq; XP_011540227.1; XM_011541925.2. DR RefSeq; XP_011540234.1; XM_011541932.2. DR RefSeq; XP_011540235.1; XM_011541933.2. DR AlphaFoldDB; P51172; -. DR SMR; P51172; -. DR BioGRID; 112243; 73. DR ComplexPortal; CPX-312; Amiloride-sensitive sodium channel complex, delta-alpha-beta-gamma. DR ComplexPortal; CPX-313; Amiloride-sensitive sodium channel complex, delta-beta-gamma. DR CORUM; P51172; -. DR IntAct; P51172; 21. DR STRING; 9606.ENSP00000368411; -. DR DrugBank; DB00594; Amiloride. DR DrugBank; DB00384; Triamterene. DR TCDB; 1.A.6.1.1; the epithelial na(+) channel (enac) family. DR GlyCosmos; P51172; 2 sites, No reported glycans. DR GlyGen; P51172; 2 sites. DR iPTMnet; P51172; -. DR PhosphoSitePlus; P51172; -. DR BioMuta; SCNN1D; -. DR DMDM; 116242784; -. DR MassIVE; P51172; -. DR PaxDb; 9606-ENSP00000368411; -. DR PeptideAtlas; P51172; -. DR ProteomicsDB; 1607; -. DR ProteomicsDB; 56298; -. [P51172-1] DR ProteomicsDB; 56299; -. [P51172-2] DR Antibodypedia; 4029; 292 antibodies from 31 providers. DR DNASU; 6339; -. DR Ensembl; ENST00000325425.12; ENSP00000321594.8; ENSG00000162572.21. [P51172-2] DR Ensembl; ENST00000338555.6; ENSP00000339504.2; ENSG00000162572.21. [P51172-1] DR Ensembl; ENST00000379116.10; ENSP00000368411.5; ENSG00000162572.21. [P51172-3] DR Ensembl; ENST00000400928.7; ENSP00000383717.3; ENSG00000162572.21. [P51172-1] DR GeneID; 6339; -. DR KEGG; hsa:6339; -. DR MANE-Select; ENST00000379116.10; ENSP00000368411.5; NM_001130413.4; NP_001123885.2. DR UCSC; uc001adw.3; human. [P51172-3] DR AGR; HGNC:10601; -. DR CTD; 6339; -. DR DisGeNET; 6339; -. DR GeneCards; SCNN1D; -. DR HGNC; HGNC:10601; SCNN1D. DR HPA; ENSG00000162572; Tissue enhanced (brain, testis). DR MIM; 601328; gene. DR neXtProt; NX_P51172; -. DR OpenTargets; ENSG00000162572; -. DR PharmGKB; PA35011; -. DR VEuPathDB; HostDB:ENSG00000162572; -. DR eggNOG; KOG4294; Eukaryota. DR GeneTree; ENSGT00940000162685; -. DR InParanoid; P51172; -. DR OMA; RFHYVDI; -. DR OrthoDB; 5344287at2759; -. DR PhylomeDB; P51172; -. DR TreeFam; TF330663; -. DR PathwayCommons; P51172; -. DR Reactome; R-HSA-2672351; Stimuli-sensing channels. DR Reactome; R-HSA-9730628; Sensory perception of salty taste. DR SignaLink; P51172; -. DR BioGRID-ORCS; 6339; 18 hits in 1160 CRISPR screens. DR GeneWiki; SCNN1D; -. DR GenomeRNAi; 6339; -. DR Pharos; P51172; Tbio. DR PRO; PR:P51172; -. DR Proteomes; UP000005640; Chromosome 1. DR RNAct; P51172; Protein. DR Bgee; ENSG00000162572; Expressed in right hemisphere of cerebellum and 89 other cell types or tissues. DR ExpressionAtlas; P51172; baseline and differential. DR GO; GO:0015629; C:actin cytoskeleton; IDA:HPA. DR GO; GO:0016020; C:membrane; IDA:UniProtKB. DR GO; GO:0005886; C:plasma membrane; IDA:HPA. DR GO; GO:0034706; C:sodium channel complex; IDA:ComplexPortal. DR GO; GO:0015280; F:ligand-gated sodium channel activity; IBA:GO_Central. DR GO; GO:0071468; P:cellular response to acidic pH; IDA:ComplexPortal. DR GO; GO:1904045; P:cellular response to aldosterone; NAS:ComplexPortal. DR GO; GO:1904117; P:cellular response to vasopressin; NAS:ComplexPortal. DR GO; GO:0006883; P:intracellular sodium ion homeostasis; IDA:ComplexPortal. DR GO; GO:0008217; P:regulation of blood pressure; NAS:ComplexPortal. DR GO; GO:0050914; P:sensory perception of salty taste; NAS:ComplexPortal. DR GO; GO:0050915; P:sensory perception of sour taste; NAS:ComplexPortal. DR GO; GO:0098719; P:sodium ion import across plasma membrane; IDA:ComplexPortal. DR GO; GO:0035725; P:sodium ion transmembrane transport; IBA:GO_Central. DR GO; GO:0006814; P:sodium ion transport; TAS:ProtInc. DR Gene3D; 2.60.470.10; Acid-sensing ion channels like domains; 1. DR Gene3D; 1.10.287.770; YojJ-like; 1. DR InterPro; IPR001873; ENaC. DR InterPro; IPR004724; ENaC_chordates. DR InterPro; IPR020903; ENaC_CS. DR NCBIfam; TIGR00859; ENaC; 1. DR PANTHER; PTHR11690:SF132; AMILORIDE-SENSITIVE SODIUM CHANNEL SUBUNIT DELTA; 1. DR PANTHER; PTHR11690; AMILORIDE-SENSITIVE SODIUM CHANNEL-RELATED; 1. DR Pfam; PF00858; ASC; 1. DR PRINTS; PR01078; AMINACHANNEL. DR PROSITE; PS01206; ASC; 1. DR Genevisible; P51172; HS. PE 1: Evidence at protein level; KW Alternative splicing; Cell membrane; Glycoprotein; Ion channel; KW Ion transport; Membrane; Reference proteome; Sensory transduction; Sodium; KW Sodium channel; Sodium transport; Taste; Transmembrane; KW Transmembrane helix; Transport. FT CHAIN 1..802 FT /note="Amiloride-sensitive sodium channel subunit delta" FT /id="PRO_0000181282" FT TOPO_DOM 1..250 FT /note="Cytoplasmic" FT /evidence="ECO:0000269|PubMed:19520916" FT TRANSMEM 251..271 FT /note="Helical; Name=1" FT /evidence="ECO:0000255" FT TOPO_DOM 272..694 FT /note="Extracellular" FT /evidence="ECO:0000269|PubMed:19520916" FT TRANSMEM 695..715 FT /note="Helical; Name=2" FT /evidence="ECO:0000255" FT TOPO_DOM 716..802 FT /note="Cytoplasmic" FT /evidence="ECO:0000269|PubMed:19520916" FT REGION 145..211 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT REGION 738..777 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT COMPBIAS 191..208 FT /note="Pro residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT CARBOHYD 330 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 548 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT VAR_SEQ 1..164 FT /note="Missing (in isoform 1)" FT /id="VSP_060000" FT VAR_SEQ 1..98 FT /note="Missing (in isoform 2)" FT /id="VSP_060001" FT VAR_SEQ 165..185 FT /note="PCHLKGWQHRPTQHNAACKQG -> MAEHRSMDGRMEAATRGGSHL (in FT isoform 1)" FT /id="VSP_060002" FT VARIANT 344 FT /note="R -> P (in dbSNP:rs11260579)" FT /evidence="ECO:0000269|PubMed:15489334" FT /id="VAR_028209" FT VARIANT 544 FT /note="E -> Q (in dbSNP:rs2228579)" FT /evidence="ECO:0000269|PubMed:15489334" FT /id="VAR_028210" FT VARIANT 636 FT /note="A -> T (in dbSNP:rs13306651)" FT /id="VAR_028211" FT VARIANT 696 FT /note="C -> Y (in dbSNP:rs1053844)" FT /evidence="ECO:0000269|PubMed:14702039, FT ECO:0000269|PubMed:15489334, ECO:0000269|PubMed:7499195" FT /id="VAR_028212" FT VARIANT 726 FT /note="G -> S (in dbSNP:rs6690013)" FT /evidence="ECO:0000269|PubMed:14702039" FT /id="VAR_028213" FT VARIANT 770 FT /note="G -> R (in dbSNP:rs609805)" FT /evidence="ECO:0000269|PubMed:14702039" FT /id="VAR_028214" FT CONFLICT 176 FT /note="T -> A (in Ref. 2; ABI64069)" FT /evidence="ECO:0000305" FT CONFLICT 210 FT /note="Q -> R (in Ref. 2; ABI64069)" FT /evidence="ECO:0000305" FT CONFLICT 424 FT /note="V -> A (in Ref. 2; ABI64069)" FT /evidence="ECO:0000305" FT CONFLICT 444 FT /note="H -> Y (in Ref. 4; BAC04105)" FT /evidence="ECO:0000305" FT CONFLICT 597 FT /note="F -> L (in Ref. 4; BAC04105)" FT /evidence="ECO:0000305" SQ SEQUENCE 802 AA; 87850 MW; 5CC845DA14F2E6B4 CRC64; MRAVLSQKTT PLPRYLWPGH LSGPRRLTWS WCSDHRTPTC RELGSPHPTP CTGPARGWPR RGGGPCGFTS AGHVLCGYPL CLLSGPIQGC GTGLGDSSMA FLSRTSPVAA ASFQSRQEAR GSILLQSCQL PPQWLSTEAW TGEWKQPHGG ALTSRSPGPV APQRPCHLKG WQHRPTQHNA ACKQGQAAAQ TPPRPGPPSA PPPPPKEGHQ EGLVELPASF RELLTFFCTN ATIHGAIRLV CSRGNRLKTT SWGLLSLGAL VALCWQLGLL FERHWHRPVL MAVSVHSERK LLPLVTLCDG NPRRPSPVLR HLELLDEFAR ENIDSLYNVN LSKGRAALSA TVPRHEPPFH LDREIRLQRL SHSGSRVRVG FRLCNSTGGD CFYRGYTSGV AAVQDWYHFH YVDILALLPA AWEDSHGSQD GHFVLSCSYD GLDCQARQFR TFHHPTYGSC YTVDGVWTAQ RPGITHGVGL VLRVEQQPHL PLLSTLAGIR VMVHGRNHTP FLGHHSFSVR PGTEATISIR EDEVHRLGSP YGHCTAGGEG VEVELLHNTS YTRQACLVSC FQQLMVETCS CGYYLHPLPA GAEYCSSARH PAWGHCFYRL YQDLETHRLP CTSRCPRPCR ESAFKLSTGT SRWPSAKSAG WTLATLGEQG LPHQSHRQRS SLAKINIVYQ ELNYRSVEEA PVYSVPQLLS AMGSLCSLWF GASVLSLLEL LELLLDASAL TLVLGGRRLR RAWFSWPRAS PASGASSIKP EASQMPPPAG GTSDDPEPSG PHLPRVMLPG VLAGVSAEES WAGPQPLETL DT //