Hmdb loader
Identification
HMDB Protein ID HMDBP09092
Secondary Accession Numbers
  • 14836
Name Amiloride-sensitive sodium channel subunit beta
Synonyms
  1. Beta-ENaC
  2. Beta-NaCH
  3. ENaCB
  4. Epithelial Na(+) channel subunit beta
  5. Nonvoltage-gated sodium channel 1 subunit beta
  6. SCNEB
Gene Name SCNN1B
Protein Type Unknown
Biological Properties
General Function Involved in ligand-gated sodium channel activity
Specific Function Sodium permeable non-voltage-sensitive ion channel inhibited by the diuretic amiloride. Mediates the electrodiffusion of the luminal sodium (and water, which follows osmotically) through the apical membrane of epithelial cells. Controls the reabsorption of sodium in kidney, colon, lung and sweat glands. Also plays a role in taste perception
Pathways
  • Amiloride Action Pathway
  • Bendroflumethiazide Action Pathway
  • Blue diaper syndrome
  • Bumetanide Action Pathway
  • Chlorothiazide Action Pathway
  • Chlorthalidone Action Pathway
  • Cyclothiazide Action Pathway
  • Cystinuria
  • Eplerenone Action Pathway
  • Ethacrynic Acid Action Pathway
  • Furosemide Action Pathway
  • Glucose Transporter Defect (SGLT2)
  • Hartnup Disorder
  • Hydrochlorothiazide Action Pathway
  • Hydroflumethiazide Action Pathway
  • Iminoglycinuria
  • Indapamide Action Pathway
  • Kidney Function
  • Lysinuric Protein Intolerance
  • Lysinuric protein intolerance (LPI)
  • Methyclothiazide Action Pathway
  • Metolazone Action Pathway
  • Polythiazide Action Pathway
  • Quinethazone Action Pathway
  • Spironolactone Action Pathway
  • Torsemide Action Pathway
  • Triamterene Action Pathway
  • Trichlormethiazide Action Pathway
Reactions Not Available
GO Classification
Component
cell part
membrane
membrane part
intrinsic to membrane
integral to membrane
Function
transporter activity
amiloride-sensitive sodium channel activity
sodium channel activity
cation channel activity
ion channel activity
ion transmembrane transporter activity
substrate-specific transmembrane transporter activity
transmembrane transporter activity
Process
cation transport
ion transport
monovalent inorganic cation transport
sodium ion transport
transport
establishment of localization
Cellular Location
  1. Multi-pass membrane protein
  2. Apical cell membrane
Gene Properties
Chromosome Location Chromosome:1
Locus 16p12.2-p12.1
SNPs SCNN1B
Gene Sequence
>1923 bp
ATGCACGTGAAGAAGTACCTGCTGAAGGGCCTGCATCGGCTGCAGAAGGGCCCCGGCTAC
ACGTACAAGGAGCTGCTGGTGTGGTACTGCGACAACACCAACACCCACGGCCCCAAGCGC
ATCATCTGTGAGGGGCCCAAGAAGAAAGCCATGTGGTTCCTGCTCACCCTGCTCTTCGCC
GCCCTCGTCTGCTGGCAGTGGGGCATCTTCATCAGGACCTACTTGAGCTGGGAGGTCAGC
GTCTCCCTCTCCGTAGGCTTCAAGACCATGGACTTCCCCGCCGTCACCATCTGCAATGCT
AGCCCCTTCAAGTATTCCAAAATCAAGCATTTGCTGAAGGACCTGGATGAGCTGATGGAA
GCTGTCCTGGAGAGAATCCTGGCTCCTGAGCTAAGCCATGCCAATGCCACCAGGAACCTG
AACTTCTCCATCTGGAACCACACACCCCTGGTCCTTATTGATGAACGGAACCCCCACCAC
CCCATGGTCCTTGATCTCTTTGGAGACAACCACAATGGCTTAACAAGCAGCTCAGCATCA
GAAAAGATCTGTAATGCCCACGGGTGCAAAATGGCCATGAGACTATGTAGCCTCAACAGG
ACCCAGTGTACCTTCCGGAACTTCACCAGTGCTACCCAGGCATTGACAGAGTGGTACATC
CTGCAGGCCACCAACATCTTTGCACAGGTGCCACAGCAGGAGCTAGTAGAGATGAGCTAC
CCCGGCGAGCAGATGATCCTGGCCTGCCTATTCGGAGCTGAGCCCTGCAACTACCGGAAC
TTCACGTCCATCTTCTACCCTCACTATGGCAACTGTTACATCTTCAACTGGGGCATGACA
GAGAAGGCACTTCCTTCGGCCAACCCTGGAACTGAATTCGGCCTGAAGTTGATCCTGGAC
ATAGGCCAGGAAGACTACGTCCCCTTCCTTGCGTCCACGGGCGGGGTCAGGCTGATGCTT
CACGAGCAGAGGTCATACCCCTTCATCAGAGATGAGGGCATCTACGCCATGTCGGGGACA
GAGACGTCCATCGGGGTACTCGTGGATAAGCTTCAGCGCATGGGGGAGCCCTACAGCCCG
TGCACCGTGAATGGTTCTGAGGTCCCCGTCCAAAACTTCTACAGTGACTACAACACGACC
TACTCCATCCAGGCCTGTCTTCGCTCCTGCTTCCAAGACCACATGATCCGTAACTGCAAC
TGTGGCCACTACCTGTACCCACTGCCCCGTGGGGAGAAATACTGCAACAACCGGGACTTC
CCAGACTGGGCCCATTGCTACTCAGATCTACAGATGAGCGTGGCGCAGAGAGAGACCTGC
ATTGGCATGTGCAAGGAGTCCTGCAATGACACCCAGTACAAGATGACCATCTCCATGGCT
GACTGGCCTTCTGAGGCCTCCGAGGACTGGATTTTCCACGTCTTGTCTCAGGAGCGGGAC
CAAAGCACCAATATCACCCTGAGCAGGAAGGGAATTGTCAAGCTCAACATCTACTTCCAA
GAATTTAACTATCGCACCATTGAAGAATCAGCAGCCAATAACATCGTCTGGCTGCTCTCG
AATCTGGGTGGCCAGTTTGGCTTCTGGATGGGGGGCTCTGTGCTGTGCCTCATCGAGTTT
GGGGAGATCATCATCGACTTTGTGTGGATCACCATCATCAAGCTGGTGGCCTTGGCCAAG
AGCCTACGGCAGCGGCGAGCCCAAGCCAGCTACGCTGGCCCACCGCCCACCGTGGCCGAG
CTGGTGGAGGCCCACACCAACTTTGGCTTCCAGCCTGACACGGCCCCCCGCAGCCCCAAC
ACTGGGCCCTACCCCAGTGAGCAGGCCCTGCCCATCCCAGGCACCCCGCCCCCCAACTAT
GACTCCCTGCGTCTGCAGCCGCTGGACGTCATCGAGTCTGACAGTGAGGGTGATGCCATC
TAA
Protein Properties
Number of Residues 640
Molecular Weight 72658.5
Theoretical pI 6.26
Pfam Domain Function
Signals
  • None
Transmembrane Regions
  • 51-71
  • 533-553
Protein Sequence
>Amiloride-sensitive sodium channel subunit beta
MHVKKYLLKGLHRLQKGPGYTYKELLVWYCDNTNTHGPKRIICEGPKKKAMWFLLTLLFA
ALVCWQWGIFIRTYLSWEVSVSLSVGFKTMDFPAVTICNASPFKYSKIKHLLKDLDELME
AVLERILAPELSHANATRNLNFSIWNHTPLVLIDERNPHHPMVLDLFGDNHNGLTSSSAS
EKICNAHGCKMAMRLCSLNRTQCTFRNFTSATQALTEWYILQATNIFAQVPQQELVEMSY
PGEQMILACLFGAEPCNYRNFTSIFYPHYGNCYIFNWGMTEKALPSANPGTEFGLKLILD
IGQEDYVPFLASTAGVRLMLHEQRSYPFIRDEGIYAMSGTETSIGVLVDKLQRMGEPYSP
CTVNGSEVPVQNFYSDYNTTYSIQACLRSCFQDHMIRNCNCGHYLYPLPRGEKYCNNRDF
PDWAHCYSDLQMSVAQRETCIGMCKESCNDTQYKMTISMADWPSEASEDWIFHVLSQERD
QSTNITLSRKGIVKLNIYFQEFNYRTIEESAANNIVWLLSNLGGQFGFWMGGSVLCLIEF
GEIIIDFVWITIIKLVALAKSLRQRRAQASYAGPPPTVAELVEAHTNFGFQPDTAPRSPN
TGPYPSEQALPIPGTPPPNYDSLRLQPLDVIESDSEGDAI
GenBank ID Protein 1004271
UniProtKB/Swiss-Prot ID P51168
UniProtKB/Swiss-Prot Entry Name SCNNB_HUMAN
PDB IDs
GenBank Gene ID X87159
GeneCard ID SCNN1B
GenAtlas ID SCNN1B
HGNC ID HGNC:10600
References
General References
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  2. Sjoblom T, Jones S, Wood LD, Parsons DW, Lin J, Barber TD, Mandelker D, Leary RJ, Ptak J, Silliman N, Szabo S, Buckhaults P, Farrell C, Meeh P, Markowitz SD, Willis J, Dawson D, Willson JK, Gazdar AF, Hartigan J, Wu L, Liu C, Parmigiani G, Park BH, Bachman KE, Papadopoulos N, Vogelstein B, Kinzler KW, Velculescu VE: The consensus coding sequences of human breast and colorectal cancers. Science. 2006 Oct 13;314(5797):268-74. Epub 2006 Sep 7. [PubMed:16959974 ]
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  5. Harvey KF, Dinudom A, Cook DI, Kumar S: The Nedd4-like protein KIAA0439 is a potential regulator of the epithelial sodium channel. J Biol Chem. 2001 Mar 16;276(11):8597-601. Epub 2001 Jan 17. [PubMed:11244092 ]
  6. McDonald FJ, Western AH, McNeil JD, Thomas BC, Olson DR, Snyder PM: Ubiquitin-protein ligase WWP2 binds to and downregulates the epithelial Na(+) channel. Am J Physiol Renal Physiol. 2002 Sep;283(3):F431-6. [PubMed:12167593 ]
  7. Arai K, Zachman K, Shibasaki T, Chrousos GP: Polymorphisms of amiloride-sensitive sodium channel subunits in five sporadic cases of pseudohypoaldosteronism: do they have pathologic potential? J Clin Endocrinol Metab. 1999 Jul;84(7):2434-7. [PubMed:10404817 ]
  8. Saxena A, Hanukoglu I, Saxena D, Thompson RJ, Gardiner RM, Hanukoglu A: Novel mutations responsible for autosomal recessive multisystem pseudohypoaldosteronism and sequence variants in epithelial sodium channel alpha-, beta-, and gamma-subunit genes. J Clin Endocrinol Metab. 2002 Jul;87(7):3344-50. [PubMed:12107247 ]
  9. Edelheit O, Hanukoglu I, Gizewska M, Kandemir N, Tenenbaum-Rakover Y, Yurdakok M, Zajaczek S, Hanukoglu A: Novel mutations in epithelial sodium channel (ENaC) subunit genes and phenotypic expression of multisystem pseudohypoaldosteronism. Clin Endocrinol (Oxf). 2005 May;62(5):547-53. [PubMed:15853823 ]
  10. Sheridan MB, Fong P, Groman JD, Conrad C, Flume P, Diaz R, Harris C, Knowles M, Cutting GR: Mutations in the beta-subunit of the epithelial Na+ channel in patients with a cystic fibrosis-like syndrome. Hum Mol Genet. 2005 Nov 15;14(22):3493-8. Epub 2005 Oct 5. [PubMed:16207733 ]
  11. Voilley N, Bassilana F, Mignon C, Merscher S, Mattei MG, Carle GF, Lazdunski M, Barbry P: Cloning, chromosomal localization, and physical linkage of the beta and gamma subunits (SCNN1B and SCNN1G) of the human epithelial amiloride-sensitive sodium channel. Genomics. 1995 Aug 10;28(3):560-5. [PubMed:7490094 ]
  12. McDonald FJ, Price MP, Snyder PM, Welsh MJ: Cloning and expression of the beta- and gamma-subunits of the human epithelial sodium channel. Am J Physiol. 1995 May;268(5 Pt 1):C1157-63. [PubMed:7762608 ]
  13. Hansson JH, Nelson-Williams C, Suzuki H, Schild L, Shimkets R, Lu Y, Canessa C, Iwasaki T, Rossier B, Lifton RP: Hypertension caused by a truncated epithelial sodium channel gamma subunit: genetic heterogeneity of Liddle syndrome. Nat Genet. 1995 Sep;11(1):76-82. [PubMed:7550319 ]
  14. Mutesa L, Azad AK, Verhaeghe C, Segers K, Vanbellinghen JF, Ngendahayo L, Rusingiza EK, Mutwa PR, Rulisa S, Koulischer L, Cassiman JJ, Cuppens H, Bours V: Genetic analysis of Rwandan patients with cystic fibrosis-like symptoms: identification of novel cystic fibrosis transmembrane conductance regulator and epithelial sodium channel gene variants. Chest. 2009 May;135(5):1233-42. doi: 10.1378/chest.08-2246. Epub 2008 Nov 18. [PubMed:19017867 ]
  15. Fajac I, Viel M, Sublemontier S, Hubert D, Bienvenu T: Could a defective epithelial sodium channel lead to bronchiectasis. Respir Res. 2008 May 28;9:46. doi: 10.1186/1465-9921-9-46. [PubMed:18507830 ]
  16. Saxena A, Hanukoglu I, Strautnieks SS, Thompson RJ, Gardiner RM, Hanukoglu A: Gene structure of the human amiloride-sensitive epithelial sodium channel beta subunit. Biochem Biophys Res Commun. 1998 Nov 9;252(1):208-13. [PubMed:9813171 ]
  17. Shimkets RA, Warnock DG, Bositis CM, Nelson-Williams C, Hansson JH, Schambelan M, Gill JR Jr, Ulick S, Milora RV, Findling JW, et al.: Liddle's syndrome: heritable human hypertension caused by mutations in the beta subunit of the epithelial sodium channel. Cell. 1994 Nov 4;79(3):407-14. [PubMed:7954808 ]
  18. Hansson JH, Schild L, Lu Y, Wilson TA, Gautschi I, Shimkets R, Nelson-Williams C, Rossier BC, Lifton RP: A de novo missense mutation of the beta subunit of the epithelial sodium channel causes hypertension and Liddle syndrome, identifying a proline-rich segment critical for regulation of channel activity. Proc Natl Acad Sci U S A. 1995 Dec 5;92(25):11495-9. [PubMed:8524790 ]
  19. Tamura H, Schild L, Enomoto N, Matsui N, Marumo F, Rossier BC: Liddle disease caused by a missense mutation of beta subunit of the epithelial sodium channel gene. J Clin Invest. 1996 Apr 1;97(7):1780-4. [PubMed:8601645 ]
  20. Chang SS, Grunder S, Hanukoglu A, Rosler A, Mathew PM, Hanukoglu I, Schild L, Lu Y, Shimkets RA, Nelson-Williams C, Rossier BC, Lifton RP: Mutations in subunits of the epithelial sodium channel cause salt wasting with hyperkalaemic acidosis, pseudohypoaldosteronism type 1. Nat Genet. 1996 Mar;12(3):248-53. [PubMed:8589714 ]
  21. Persu A, Barbry P, Bassilana F, Houot AM, Mengual R, Lazdunski M, Corvol P, Jeunemaitre X: Genetic analysis of the beta subunit of the epithelial Na+ channel in essential hypertension. Hypertension. 1998 Jul;32(1):129-37. [PubMed:9674649 ]
  22. Inoue J, Iwaoka T, Tokunaga H, Takamune K, Naomi S, Araki M, Takahama K, Yamaguchi K, Tomita K: A family with Liddle's syndrome caused by a new missense mutation in the beta subunit of the epithelial sodium channel. J Clin Endocrinol Metab. 1998 Jun;83(6):2210-3. [PubMed:9626162 ]
  23. Uehara Y, Sasaguri M, Kinoshita A, Tsuji E, Kiyose H, Taniguchi H, Noda K, Ideishi M, Inoue J, Tomita K, Arakawa K: Genetic analysis of the epithelial sodium channel in Liddle's syndrome. J Hypertens. 1998 Aug;16(8):1131-5. [PubMed:9794716 ]
  24. Rayner BL, Owen EP, King JA, Soule SG, Vreede H, Opie LH, Marais D, Davidson JS: A new mutation, R563Q, of the beta subunit of the epithelial sodium channel associated with low-renin, low-aldosterone hypertension. J Hypertens. 2003 May;21(5):921-6. [PubMed:12714866 ]
  25. Furuhashi M, Kitamura K, Adachi M, Miyoshi T, Wakida N, Ura N, Shikano Y, Shinshi Y, Sakamoto K, Hayashi M, Satoh N, Nishitani T, Tomita K, Shimamoto K: Liddle's syndrome caused by a novel mutation in the proline-rich PY motif of the epithelial sodium channel beta-subunit. J Clin Endocrinol Metab. 2005 Jan;90(1):340-4. Epub 2004 Oct 13. [PubMed:15483078 ]