Identification
HMDB Protein ID CDBP03947
Secondary Accession Numbers Not Available
Name Inward rectifier potassium channel 13
Description Not Available
Synonyms
  1. Inward rectifier K(+) channel Kir7.1
  2. Potassium channel, inwardly rectifying subfamily J member 13
Gene Name KCNJ13
Protein Type Transporter
Biological Properties
General Function Involved in inward rectifier potassium channel activity
Specific Function Inward rectifier potassium channels are characterized by a greater tendency to allow potassium to flow into the cell rather than out of it. Their voltage dependence is regulated by the concentration of extracellular potassium; as external potassium is raised, the voltage range of the channel opening shifts to more positive voltages. The inward rectification is mainly due to the blockage of outward current by internal magnesium. KCNJ13 has a very low single channel conductance, low sensitivity to block by external barium and cesium, and no dependence of its inward rectification properties on the internal blocking particle magnesium
GO Classification
Component
membrane
cell part
Function
potassium channel activity
voltage-gated potassium channel activity
transmembrane transporter activity
substrate-specific transmembrane transporter activity
ion transmembrane transporter activity
transporter activity
ion channel activity
inward rectifier potassium 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
Pathways
Gene Properties
Chromosome Location Chromosome:2
Locus 2q37
SNPs KCNJ13
Gene Sequence
>1083 bp
ATGGACAGCAGTAATTGCAAAGTTATTGCTCCTCTCCTAAGTCAAAGATACCGGAGGATG
GTCACCAAGGATGGCCACAGCACACTTCAAATGGATGGCGCTCAAAGAGGTCTTGCATAT
CTTCGAGATGCTTGGGGAATCCTAATGGACATGCGCTGGCGTTGGATGATGTTGGTCTTT
TCTGCTTCTTTTGTTGTCCACTGGCTTGTCTTTGCAGTGCTCTGGTATGTTCTGGCTGAG
ATGAATGGTGATCTGGAACTAGATCATGATGCCCCACCTGAAAACCACACTATCTGTGTC
AAGTATATCACCAGTTTCACAGCTGCATTCTCCTTCTCCCTGGAGACACAACTCACAATT
GGTTATGGTACCATGTTCCCCAGTGGTGACTGTCCAAGTGCAATCGCCTTACTTGCCATA
CAAATGCTCCTAGGCCTCATGCTAGAGGCTTTTATCACAGGTGCTTTTGTGGCGAAGATT
GCCCGGCCAAAAAATCGAGCTTTTTCAATTCGCTTTACTGACATAGCAGTAGTAGCTCAC
ATGGATGGCAAACCTAATCTTATCTTCCAAGTGGCCAACACCCGACCTAGCCCTCTAACC
AGTGTCCGGGTCTCAGCTGTACTCTATCAGGAAAGAGAAAATGGCAAACTCTACCAGACC
AGTGTGGATTTCCACCTTGATGGCATCAGTTCTGACGAATGTCCATTCTTCATCTTTCCA
CTAACGTACTATCACTCCATTACACCATCAAGTCCTCTGGCTACTCTGCTCCAGCATGAA
AATCCTTCTCACTTTGAATTAGTTGTATTCCTTTCAGCAATGCAGGAGGGCACTGGAGAA
ATATGCCAAAGGAGGACATCCTACCTACCGTCTGAAATCATGTTACATCACTGTTTTGCA
TCTCTGTTGACCCGAGGTTCCAAAGGTGAATATCAAATCAAGATGGAGAATTTTGACAAG
ACTGTCCCTGAATTTCCAACTCCTCTGGTTTCTAAAAGCCCAAACAGGACTGACCTGGAT
ATCCACATCAATGGACAAAGCATTGACAATTTTCAGATCTCTGAAACAGGACTGACAGAA
TAA
Protein Properties
Number of Residues 360
Molecular Weight 40529.2
Theoretical pI 6.23
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["54-78", "134-155"]
Protein Sequence
>Inward rectifier potassium channel 13
MDSSNCKVIAPLLSQRYRRMVTKDGHSTLQMDGAQRGLAYLRDAWGILMDMRWRWMMLVF
SASFVVHWLVFAVLWYVLAEMNGDLELDHDAPPENHTICVKYITSFTAAFSFSLETQLTI
GYGTMFPSGDCPSAIALLAIQMLLGLMLEAFITGAFVAKIARPKNRAFSIRFTDTAVVAH
MDGKPNLIFQVANTRPSPLTSVRVSAVLYQERENGKLYQTSVDFHLDGISSDECPFFIFP
LTYYHSITPSSPLATLLQHENPSHFELVVFLSAMQEGTGEICQRRTSYLPSEIMLHHCFA
SLLTRGSKGEYQIKMENFDKTVPEFPTPLVSKSPNRTDLDIHINGQSIDNFQISETGLTE
GenBank ID Protein 3650320
UniProtKB/Swiss-Prot ID O60928
UniProtKB/Swiss-Prot Entry Name IRK13_HUMAN
PDB IDs Not Available
GenBank Gene ID AJ007557
GeneCard ID KCNJ13
GenAtlas ID KCNJ13
HGNC ID HGNC:6259
References
General References Not Available