Identification
HMDB Protein ID CDBP02973
Secondary Accession Numbers Not Available
Name Small conductance calcium-activated potassium channel protein 2
Description Not Available
Synonyms
  1. KCa2.2
  2. SK2
  3. SKCa 2
  4. SKCa2
Gene Name KCNN2
Protein Type Transporter
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
GO Classification
Component
membrane
cell part
membrane part
intrinsic to membrane
integral to membrane
Function
transmembrane transporter activity
substrate-specific transmembrane transporter activity
ion transmembrane transporter activity
transporter activity
ion channel activity
cation channel activity
binding
small conductance calcium-activated potassium channel activity
calmodulin binding
protein binding
calcium activated cation channel activity
calcium-activated potassium 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
Pathways
Gene Properties
Chromosome Location Chromosome:5
Locus 5q22.3
SNPs KCNN2
Gene Sequence
>1740 bp
ATGAGCAGCTGCAGGTACAACGGGGGCGTCATGCGGCCGCTCAGCAACTTGAGCGCGTCC
CGCCGGAACCTCCACGAGATGGACTCAGAGGCGCAGCCCCTGCAGCCCCCCGCGTCTGTC
GGAGGAGGTGGCGGCGCGTCCTCCCCGTCTGCAGACGCTGCCGCCGCCGCCGCTGTTTCG
TCCTCAGCCCCCGAGATCGTGGTGTCTAAGCCCGAGCACAACAACTCCAACAACCTGGCG
CTCTATGGAACCGGCGGCGGAGGCAGCACTGGAGGAGGCGGCGGCGGTGGAGGGAGCGGG
CACGGCAGCAGCAGTGGCACCAAGTCCAGCAAAAAGAAAAACCAGAACATCGGCTACAAG
CTGGGCCACCGGCGCGCCCTGTTCGAAAAGCGCAAGCGGCTCAGCGACTACGCGCTCATC
TTCGGCATGTTCGGCATCGTGGTCATGGTCATCGAGACCGAGCTGTCGTGGGGCGCCTAC
GACAAGGCGTCGCTGTATTCCTTAGCTCTGAAATGCCTTATCAGTCTCTCCACGATCATC
CTGCTCGGTCTGATCATCGTGTACCACGCCAGGGAAATACAGTTGTTCATGGTGGACAAT
GGAGCAGATGACTGGAGAATAGCCATGACTTATGAGCGTATTTTCTTCATCTGCTTGGAA
ATACTGGTGTGTGCTATTCATCCCATACCTGGGAATTATACATTCACATGGACGGCCCGG
CTTGCCTTCTCCTATGCCCCATCCACAACCACCGCTGATGTGGATATTATTTTATCTATA
CCAATGTTCTTAAGACTCTATCTGATTGCCAGAGTCATGCTTTTACATAGCAAACTTTTC
ACTGATGCCTCCTCTAGAAGCATTGGAGCACTTAATAAGATAAACTTCAATACACGTTTT
GTTATGAAGACTTTAATGACTATATGCCCAGGAACTGTACTCTTGGTTTTTAGTATCTCA
TTATGGATAATTGCCGCATGGACTGTCCGAGCTTGTGAAAGGTACCATGATCAACAGGAT
GTTACTAGCAACTTCCTTGGAGCGATGTGGTTGATATCAATAACTTTTCTCTCCATTGGT
TATGGTGACATGGTACCTAACACATACTGTGGAAAAGGAGTCTGCTTACTTACTGGAATT
ATGGGTGCTGGTTGCACAGCCCTGGTGGTAGCTGTAGTGGCAAGGAAGCTAGAACTTACC
AAAGCAGAAAAACACGTGCACAATTTCATGATGGATACTCAGCTGACTAAAAGAGTAAAA
AATGCAGCTGCCAATGTACTCAGGGAAACATGGCTAATTTACAAAAATACAAAGCTAGTG
AAAAAGATAGATCATGCAAAAGTAAGAAAACATCAACGAAAATTCCTGCAAGCTATTCAT
CAATTAAGAAGTGTAAAAATGGAGCAGAGGAAACTGAATGACCAAGCAAACACTTTGGTG
GACTTGGCAAAGACCCAGAACATCATGTATGATATGATTTCTGACTTAAACGAAAGGAGT
GAAGACTTCGAGAAGAGGATTGTTACCCTGGAAACAAAACTAGAGACTTTGATTGGTAGC
ATCCACGCCCTCCCTGGGCTCATAAGCCAGACCATCAGGCAGCAGCAGAGAGATTTCATT
GAGGCTCAGATGGAGAGCTACGACAAGCACGTCACTTACAATGCTGAGCGGTCCCGGTCC
TCGTCCAGGAGGCGGCGGTCCTCTTCCACAGCACCACCAACTTCATCAGAGAGTAGCTAG
Protein Properties
Number of Residues 579
Molecular Weight 63759.0
Theoretical pI 9.99
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["138-158", "168-188", "214-234", "256-276", "305-325", "374-394"]
Protein Sequence
>Small conductance calcium-activated potassium channel protein 2
MSSCRYNGGVMRPLSNLSASRRNLHEMDSEAQPLQPPASVGGGGGASSPSAAAAAAAAVS
SSAPEIVVSKPEHNNSNNLALYGTGGGGSTGGGGGGGGSGHGSSSGTKSSKKKNQNIGYK
LGHRRALFEKRKRLSDYALIFGMFGIVVMVIETELSWGAYDKASLYSLALKCLISLSTII
LLGLIIVYHAREIQLFMVDNGADDWRIAMTYERIFFICLEILVCAIHPIPGNYTFTWTAR
LAFSYAPSTTTADVDIILSIPMFLRLYLIARVMLLHSKLFTDASSRSIGALNKINFNTRF
VMKTLMTICPGTVLLVFSISLWIIAAWTVRACERYHDQQDVTSNFLGAMWLISITFLSIG
YGDMVPNTYCGKGVCLLTGIMGAGCTALVVAVVARKLELTKAEKHVHNFMMDTQLTKRVK
NAAANVLRETWLIYKNTKLVKKIDHAKVRKHQRKFLQAIHQLRSVKMEQRKLNDQANTLV
DLAKTQNIMYDMISDLNERSEDFEKRIVTLETKLETLIGSIHALPGLISQTIRQQQRDFI
EAQMESYDKHVTYNAERSRSSSRRRRSSSTAPPTSSESS
GenBank ID Protein 10334701
UniProtKB/Swiss-Prot ID Q9H2S1
UniProtKB/Swiss-Prot Entry Name KCNN2_HUMAN
PDB IDs
GenBank Gene ID AF239613
GeneCard ID KCNN2
GenAtlas ID KCNN2
HGNC ID HGNC:6291
References
General References Not Available