Hmdb loader
Identification
HMDB Protein ID HMDBP07759
Secondary Accession Numbers
  • 13468
Name Small conductance calcium-activated potassium channel protein 3
Synonyms
  1. KCa2.3
  2. SK3
  3. SKCa 3
  4. SKCa3
Gene Name KCNN3
Protein Type Unknown
Biological Properties
General Function Involved in calmodulin binding
Specific Function Forms a voltage-independent potassium channel activated by intracellular calcium. Activation is followed by membrane hyperpolarization. Thought to regulate neuronal excitability by contributing to the slow component of synaptic afterhyperpolarization. The channel is blocked by apamin
Pathways Not Available
Reactions Not Available
GO Classification
Component
membrane
cell part
membrane part
intrinsic to membrane
integral to membrane
Function
binding
small conductance calcium-activated potassium channel activity
calmodulin binding
protein binding
calcium activated cation channel activity
calcium-activated potassium channel activity
transmembrane transporter activity
substrate-specific transmembrane transporter activity
ion transmembrane transporter activity
transporter activity
ion channel activity
cation channel activity
Process
establishment of localization
transport
monovalent inorganic cation transport
potassium ion transport
ion transport
cation transport
Cellular Location
  1. Membrane
  2. Multi-pass membrane protein
Gene Properties
Chromosome Location Chromosome:1
Locus 1q21.3
SNPs KCNN3
Gene Sequence
>2196 bp
ATGGACACTTCTGGGCACTTCCATGACTCGGGGGTGGGGGACTTGGATGAAGACCCCAAG
TGCCCCTGTCCATCCTCTGGGGATGAGCAGCAGCAGCAGCAGCAGCAGCAACAGCAGCAG
CAGCCACCACCGCCAGCGCCACCAGCAGCCCCCCAGCAGCCCCTGGGACCCTCGCTGCAG
CCTCAGCCTCCGCAGCTTCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAG
CCACCGCATCCCCTGTCTCAGCTCGCCCAACTCCAGAGCCAGCCCGTCCACCCTGGCCTG
CTGCACTCCTCTCCCACCGCTTTCAGGGCCCCCCCTTCGTCCAACTCCACCGCCATCCTC
CACCCTTCCTCCAGGCAAGGCAGCCAGCTCAATCTCAATGACCACTTGCTTGGCCACTCT
CCAAGTTCCACAGCTACAAGTGGGCCTGGCGGAGGCAGCCGGCACCGACAGGCCAGCCCC
CTGGTGCACCGGCGGGACAGCAACCCCTTCACGGAGATCGCCATGAGCTCCTGCAAGTAT
AGCGGTGGGGTCATGAAGCCCCTCAGCCGCCTCAGCGCCTCCCGGAGGAACCTCATCGAG
GCCGAGACTGAGGGCCAACCCCTCCAGCTTTTCAGCCCTAGCAACCCCCCGGAGATCGTC
ATCTCCTCCCGGGAGGACAACCATGCCCACCAGACCCTGCTCCATCACCCTAATGCCACC
CACAACCACCAGCATGCCGGCACCACCGCCAGCAGCACCACCTTCCCCAAAGCCAACAAG
CGGAAAAACCAAAACATTGGCTATAAGCTGGGACACAGGAGGGCCCTGTTTGAAAAGAGA
AAGCGACTGAGTGACTATGCTCTGATTTTTGGGATGTTTGGAATTGTTGTTATGGTGATA
GAGACCGAGCTCTCTTGGGGTTTGTACTCAAAGGACTCCATGTTTTCGTTGGCCCTGAAA
TGCCTTATCAGTCTGTCCACCATCATCCTTTTGGGCTTGATCATCGCCTACCACACACGT
GAAGTCCAGCTCTTCGTGATCGACAATGGCGCGGATGACTGGCGGATAGCCATGACCTAC
GAGCGCATCCTGTACATCAGCCTGGAGATGCTGGTGTGCGCCATCCACCCCATTCCTGGC
GAGTACAAGTTCTTCTGGACGGCACGCCTGGCCTTCTCCTACACACCCTCCCGGGCGGAG
GCCGATGTGGACATCATCCTGTCTATCCCCATGTTCCTGCGCCTGTACCTGATCGCCCGA
GTCATGCTGCTGCACAGCAAGCTCTTCACCGATGCCTCGTCCCGCAGCATCGGGGCCCTC
AACAAGATCAACTTCAACACCCGCTTTGTCATGAAGACGCTCATGACCATCTGCCCTGGC
ACTGTGCTGCTCGTGTTCAGCATCTCTCTGTGGATCATTGCTGCCTGGACCGTCCGTGTC
TGTGAAAGGTACCATGACCAGCAGGACGTAACTAGTAACTTTCTGGGTGCCATGTGGCTC
ATCTCCATCACATTCCTTTCCATTGGTTATGGGGACATGGTGCCCCACACATACTGTGGG
AAAGGTGTCTGTCTCCTCACTGGCATCATGGGTGCAGGCTGCACTGCCCTTGTGGTGGCC
GTGGTGGCCCGAAAGCTGGAACTCACCAAAGCGGAGAAGCACGTTCATAACTTCATGATG
GACACTCAGCTCACCAAGCGGATCAAGAATGCTGCAGCCAATGTCCTTCGGGAAACATGG
TTAATCTATAAACACACAAAGCTGCTAAAGAAGATTGACCATGCCAAAGTGAGGAAACAC
CAGAGGAAGTTCCTCCAAGCTATCCACCAGTTGAGGAGCGTCAAGATGGAACAGAGGAAG
CTGAGTGACCAAGCCAACACTCTGGTGGACCTTTCCAAGATGCAGAATGTCATGTATGAC
TTAATCACAGAACTCAATGACCGGAGCGAAGACCTGGAGAAGCAGATTGGCAGCCTGGAG
TCGAAGCTGGAGCATCTCACCGCCAGCTTCAACTCCCTGCCGCTGCTCATCGCCGACACC
CTGCGCCAGCAGCAGCAGCAGCTCCTGTCTGCCATCATCGAGGCCCGGGGTGTCAGCGTG
GCAGTGGGCACCACCCACACCCCAATCTCCGATAGCCCCATTGGGGTCAGCTCCACCTCC
TTCCCGACCCCGTACACAAGTTCAAGCAGTTGCTAA
Protein Properties
Number of Residues 736
Molecular Weight 82025.3
Theoretical pI 9.25
Pfam Domain Function
Signals
  • None
Transmembrane Regions
  • 293-313
  • 320-340
  • 371-391
  • 410-430
  • 459-479
  • 528-548
Protein Sequence
>Small conductance calcium-activated potassium channel protein 3
MDTSGHFHDSGVGDLDEDPKCPCPSSGDEQQQQQQQQQQQQPPPPAPPAAPQQPLGPSLQ
PQPPQLQQQQQQQQQQQQQQQQQQQPPHPLSQLAQLQSQPVHPGLLHSSPTAFRAPPSSN
STAILHPSSRQGSQLNLNDHLLGHSPSSTATSGPGGGSRHRQASPLVHRRDSNPFTEIAM
SSCKYSGGVMKPLSRLSASRRNLIEAETEGQPLQLFSPSNPPEIVISSREDNHAHQTLLH
HPNATHNHQHAGTTASSTTFPKANKRKNQNIGYKLGHRRALFEKRKRLSDYALIFGMFGI
VVMVIETELSWGLYSKDSMFSLALKCLISLSTIILLGLIIAYHTREVQLFVIDNGADDWR
IAMTYERILYISLEMLVCAIHPIPGEYKFFWTARLAFSYTPSRAEADVDIILSIPMFLRL
YLIARVMLLHSKLFTDASSRSIGALNKINFNTRFVMKTLMTICPGTVLLVFSISLWIIAA
WTVRVCERYHDQQDVTSNFLGAMWLISITFLSIGYGDMVPHTYCGKGVCLLTGIMGAGCT
ALVVAVVARKLELTKAEKHVHNFMMDTQLTKRIKNAAANVLRETWLIYKHTKLLKKIDHA
KVRKHQRKFLQAIHQLRSVKMEQRKLSDQANTLVDLSKMQNVMYDLITELNDRSEDLEKQ
IGSLESKLEHLTASFNSLPLLIADTLRQQQQQLLSAIIEARGVSVAVGTTHTPISDSPIG
VSSTSFPTPYTSSSSC
GenBank ID Protein 116805330
UniProtKB/Swiss-Prot ID Q9UGI6
UniProtKB/Swiss-Prot Entry Name KCNN3_HUMAN
PDB IDs
GenBank Gene ID NM_002249
GeneCard ID KCNN3
GenAtlas ID KCNN3
HGNC ID HGNC:6292
References
General References
  1. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. [PubMed:15489334 ]
  2. Gregory SG, Barlow KF, McLay KE, Kaul R, Swarbreck D, Dunham A, Scott CE, Howe KL, Woodfine K, Spencer CC, Jones MC, Gillson C, Searle S, Zhou Y, Kokocinski F, McDonald L, Evans R, Phillips K, Atkinson A, Cooper R, Jones C, Hall RE, Andrews TD, Lloyd C, Ainscough R, Almeida JP, Ambrose KD, Anderson F, Andrew RW, Ashwell RI, Aubin K, Babbage AK, Bagguley CL, Bailey J, Beasley H, Bethel G, Bird CP, Bray-Allen S, Brown JY, Brown AJ, Buckley D, Burton J, Bye J, Carder C, Chapman JC, Clark SY, Clarke G, Clee C, Cobley V, Collier RE, Corby N, Coville GJ, Davies J, Deadman R, Dunn M, Earthrowl M, Ellington AG, Errington H, Frankish A, Frankland J, French L, Garner P, Garnett J, Gay L, Ghori MR, Gibson R, Gilby LM, Gillett W, Glithero RJ, Grafham DV, Griffiths C, Griffiths-Jones S, Grocock R, Hammond S, Harrison ES, Hart E, Haugen E, Heath PD, Holmes S, Holt K, Howden PJ, Hunt AR, Hunt SE, Hunter G, Isherwood J, James R, Johnson C, Johnson D, Joy A, Kay M, Kershaw JK, Kibukawa M, Kimberley AM, King A, Knights AJ, Lad H, Laird G, Lawlor S, Leongamornlert DA, Lloyd DM, Loveland J, Lovell J, Lush MJ, Lyne R, Martin S, Mashreghi-Mohammadi M, Matthews L, Matthews NS, McLaren S, Milne S, Mistry S, Moore MJ, Nickerson T, O'Dell CN, Oliver K, Palmeiri A, Palmer SA, Parker A, Patel D, Pearce AV, Peck AI, Pelan S, Phelps K, Phillimore BJ, Plumb R, Rajan J, Raymond C, Rouse G, Saenphimmachak C, Sehra HK, Sheridan E, Shownkeen R, Sims S, Skuce CD, Smith M, Steward C, Subramanian S, Sycamore N, Tracey A, Tromans A, Van Helmond Z, Wall M, Wallis JM, White S, Whitehead SL, Wilkinson JE, Willey DL, Williams H, Wilming L, Wray PW, Wu Z, Coulson A, Vaudin M, Sulston JE, Durbin R, Hubbard T, Wooster R, Dunham I, Carter NP, McVean G, Ross MT, Harrow J, Olson MV, Beck S, Rogers J, Bentley DR, Banerjee R, Bryant SP, Burford DC, Burrill WD, Clegg SM, Dhami P, Dovey O, Faulkner LM, Gribble SM, Langford CF, Pandian RD, Porter KM, Prigmore E: The DNA sequence and biological annotation of human chromosome 1. Nature. 2006 May 18;441(7091):315-21. [PubMed:16710414 ]
  3. Chandy KG, Fantino E, Wittekindt O, Kalman K, Tong LL, Ho TH, Gutman GA, Crocq MA, Ganguli R, Nimgaonkar V, Morris-Rosendahl DJ, Gargus JJ: Isolation of a novel potassium channel gene hSKCa3 containing a polymorphic CAG repeat: a candidate for schizophrenia and bipolar disorder? Mol Psychiatry. 1998 Jan;3(1):32-7. [PubMed:9491810 ]
  4. Sun G, Tomita H, Shakkottai VG, Gargus JJ: Genomic organization and promoter analysis of human KCNN3 gene. J Hum Genet. 2001;46(8):463-70. [PubMed:11501944 ]