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1.A.1.2.15
Potassium voltage-gated channel subfamily S member 3 (Delayed-rectifier K(+) channel alpha subunit 3) (Voltage-gated potassium channel subunit Kv9.3)

Accession Number:Q9BQ31
Protein Name:Potassium voltage-gated channel subfamily S member 3
Length:491
Molecular Weight:56001.00
Species:Homo sapiens (Human) [9606]
Number of TMSs:7
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate K+

Cross database links:

Genevestigator: Q9BQ31
eggNOG: COG1226
HEGENOM: HOG000231016
Entrez Gene ID: 3790   
Pfam: PF00520    PF02214   
KEGG: hsa:3790   

Gene Ontology

GO:0005794 C:Golgi apparatus
GO:0005886 C:plasma membrane
GO:0008076 C:voltage-gated potassium channel complex
GO:0005251 F:delayed rectifier potassium channel activity
GO:0015459 F:potassium channel regulator activity
GO:0006112 P:energy reserve metabolic process
GO:0051260 P:protein homooligomerization
GO:0050796 P:regulation of insulin secretion
GO:0044281 P:small molecule metabolic process
GO:0007268 P:synaptic transmission

References (3)

[1] “Electrically silent potassium channel subunits from human lens epithelium.”  Shepard A.R.et.al.   10484328
[2] “Generation and annotation of the DNA sequences of human chromosomes 2 and 4.”  Hillier L.W.et.al.   15815621
[3] “The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).”  The MGC Project Teamet.al.   15489334

External Searches:

  • Search: DB with
  • BLAST ExPASy (Swiss Institute of Bioinformatics (SIB) BLAST)
  • CDD Search (Conserved Domain Database)
  • Search COGs (Clusters of Orthologous Groups of proteins)
  • 2° Structure (Network Protein Sequence Analysis)

Analyze:

Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MVFGEFFHRP GQDEELVNLN VGGFKQSVDQ STLLRFPHTR LGKLLTCHSE EAILELCDDY 
61:	SVADKEYYFD RNPSLFRYVL NFYYTGKLHV MEELCVFSFC QEIEYWGINE LFIDSCCSNR 
121:	YQERKEENHE KDWDQKSHDV STDSSFEESS LFEKELEKFD TLRFGQLRKK IWIRMENPAY 
181:	CLSAKLIAIS SLSVVLASIV AMCVHSMSEF QNEDGEVDDP VLEGVEIACI AWFTGELAVR 
241:	LAAAPCQKKF WKNPLNIIDF VSIIPFYATL AVDTKEEESE DIENMGKVVQ ILRLMRIFRI 
301:	LKLARHSVGL RSLGATLRHS YHEVGLLLLF LSVGISIFSV LIYSVEKDDH TSSLTSIPIC 
361:	WWWATISMTT VGYGDTHPVT LAGKLIASTC IICGILVVAL PITIIFNKFS KYYQKQKDID 
421:	VDQCSEDAPE KCHELPYFNI RDIYAQRMHT FITSLSSVGI VVSDPDSTDA SSIEDNEDIC 
481:	NTTSLENCTA K