Identification
HMDB Protein ID CDBP02972
Secondary Accession Numbers Not Available
Name Small conductance calcium-activated potassium channel protein 1
Description Not Available
Synonyms
  1. KCa2.1
  2. SK1
  3. SKCa 1
  4. SKCa1
Gene Name KCNN1
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:1
Locus 19p13.1
SNPs KCNN1
Gene Sequence
>1632 bp
ATGAACAGCCACAGCTACAATGGCAGCGTGGGGCGGCCGCTGGGCAGCGGGCCGGGCGCC
CTGGGACGAGACCCTCCGGACCCTGAGGCCGGCCACCCCCCACAACCCCCGCACAGCCCG
GGCCTCCAGGTGGTAGTGGCCAAGAGTGAGCCAGCCCGGCCCTCACCCGGCAGCCCCCGG
GGGCAGCCCCAGGACCAGGACGATGACGAGGATGATGAGGAAGATGAGGCCGGCAGGCAG
AGAGCCTCGGGGAAACCCTCAAATGTGGGCCACCGCCTGGGCCACCGGCGGGCGCTCTTC
GAGAAGCGGAAGCGCCTCAGCGACTATGCCCTCATTTTCGGCATGTTTGGCATCGTCGTC
ATGGTGACGGAGACCGAGCTGTCCTGGGGGGTGTACACCAAGGAGTCTCTGTACTCATTC
GCACTCAAATGCCTCATCAGCCTCTCCACGGCCATCCTGCTGGGTCTCGTTGTCCTCTAC
CATGCCCGGGAGATCCAGCTGTTCATGGTGGACAACGGGGCTGATGACTGGCGCATCGCC
ATGACCTGCGAGCGCGTGTTCCTCATCTCGCTAGAGCTGGCAGTGTGCGCCATTCACCCG
GTGCCCGGCCACTACCGCTTCACGTGGACGGCGCGGCTGGCCTTCACGTACGCGCCCTCG
GTGGCCGAGGCCGACGTGGACGTGCTGCTGTCCATCCCCATGTTCCTGCGCCTCTACCTG
CTGGGCCGGGTGATGCTACTGCACAGCAAAATCTTCACGGACGCCTCGAGCCGCAGCATC
GGGGCCCTCAACAAGATCACCTTCAACACGCGCTTCGTCATGAAGACACTCATGACCATC
TGCCCCGGCACCGTGCTGCTGGTCTTCAGCATCTCCTCCTGGATCATCGCAGCCTGGACC
GTGCGCGTCTGCGAGAGGTACCACGACAAGCAGGAAGTGACCAGCAACTTCCTGGGGGCC
ATGTGGCTGATTTCCATCACCTTCCTCTCCATTGGCTACGGCGACATGGTGCCCCACACC
TACTGCGGGAAGGGTGTGTGCCTGCTCACTGGCATCATGGGAGCTGGCTGTACCGCGCTC
GTGGTGGCTGTGGTGGCTCGGAAGCTGGAGCTCACCAAGGCTGAGAAGCACGTGCACAAC
TTCATGATGGACACTCAGCTCACCAAGCGGGTAAAAAACGCCGCTGCTAACGTTCTCAGG
GAGACGTGGCTCATCTACAAACATACCAGGCTGGTGAAGAAGCCAGACCAAGCCCGGGTT
CGGAAACACCAGCGTAAGTTCCTCCAAGCCATCCATCAGGCTCAGAAGCTCCGGAGTGTG
AAGATCGAGCAAGGGAAGCTGAACGACCAGGCTAACACGCTTACCGACCTAGCCAAGACC
CAGACCGTCATGTACGACCTTGTATCGGAGCTGCACGCTCAGCACGAGGAGCTGGAGGCC
CGCCTGGCCACCCTGGAAAGCCGCTTGGATGCGCTGGGTGCCTCTCTACAGGCCCTGCCT
GGCCTCATCGCCCAAGCCATACGCCCACCCCCGCCTCCCCTGCCTCCCAGGCCCGGCCCC
GGCCCCCAAGACCAGGCAGCCCGGAGCTCCCCCTGCCGGTGGACGCCCGTGGCCCCCTCG
GACTGCGGGTGA
Protein Properties
Number of Residues 543
Molecular Weight 59986.9
Theoretical pI 9.05
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["111-131", "140-160", "179-199", "228-248", "277-297", "346-366"]
Protein Sequence
>Small conductance calcium-activated potassium channel protein 1
MNSHSYNGSVGRPLGSGPGALGRDPPDPEAGHPPQPPHSPGLQVVVAKSEPARPSPGSPR
GQPQDQDDDEDDEEDEAGRQRASGKPSNVGHRLGHRRALFEKRKRLSDYALIFGMFGIVV
MVTETELSWGVYTKESLYSFALKCLISLSTAILLGLVVLYHAREIQLFMVDNGADDWRIA
MTCERVFLISLELAVCAIHPVPGHYRFTWTARLAFTYAPSVAEADVDVLLSIPMFLRLYL
LGRVMLLHSKIFTDASSRSIGALNKITFNTRFVMKTLMTICPGTVLLVFSISSWIIAAWT
VRVCERYHDKQEVTSNFLGAMWLISITFLSIGYGDMVPHTYCGKGVCLLTGIMGAGCTAL
VVAVVARKLELTKAEKHVHNFMMDTQLTKRVKNAAANVLRETWLIYKHTRLVKKPDQARV
RKHQRKFLQAIHQAQKLRSVKIEQGKLNDQANTLTDLAKTQTVMYDLVSELHAQHEELEA
RLATLESRLDALGASLQALPGLIAQAIRPPPPPLPPRPGPGPQDQAARSSPCRWTPVAPS
DCG
GenBank ID Protein 25777643
UniProtKB/Swiss-Prot ID Q92952
UniProtKB/Swiss-Prot Entry Name KCNN1_HUMAN
PDB IDs Not Available
GenBank Gene ID NM_002248.3
GeneCard ID KCNN1
GenAtlas ID KCNN1
HGNC ID HGNC:6290
References
General References Not Available