Identification
BMDB Protein ID BMDBP02639
Secondary Accession Numbers None
Name Inward rectifier potassium channel 2
Synonyms Not Available
Gene Name KCNJ2
Protein Type Enzyme
Biological Properties
General Function Involved in inward rectifier potassium channel activity
Specific Function Probably participates in establishing action potential waveform and excitability of neuronal and muscle tissues. 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. Can be blocked by extracellular barium and cesium (By similarity).
Pathways
  • Muscle/Heart Contraction
Reactions Not Available
GO Classification Not Available
Cellular Location Not Available
Gene Properties
Chromosome Location 19
Locus Not Available
SNPs KCNJ2
Gene Sequence Not Available
Protein Properties
Number of Residues 427
Molecular Weight 48286.0
Theoretical pI 5.47
Pfam Domain Function Not Available
Signals
  • None
Transmembrane Regions
  • 82-106
  • 157-178
Protein Sequence
>Inward rectifier potassium channel 2
MGSVRTNRYSIVSSEEDGMKLATLAVANGFGNGKSKVHTRQQCRSRFVKKDGHCNVQFIN
VGEKGQRYLADIFTTCVDIRWRWMLVIFCLAFVLSWLFFGCVFWLIALLHGDLDASKESK
ACVSEVNSFTAAFLFSIETQTTIGYGFRCVTDECPVAVFMVVFQSIVGCIIDAFIIGAVM
AKMAKPKKRNETLVFSHNAVIAMRDGKLCLMWRVGNLRKSHLVEAHVRAQLLKSRITSEG
EYIPLDQIDINVGFDSGIDRIFLVSPITIVHEIDEDSPLYDLSKQDIDNADFEIVVILEG
MVEATAMTTQCRSSYLANEILWGHRYEPVLFEEKHYYKVDYSRFHKTYEVPNTPLCSARD
LAEKKYILSNANSFCYENEVALTSKEEDDSENGVPESTSTDTPPDIDLHNQASVPLEPRP
LRRESEI
GenBank ID Protein AAB71888.1
UniProtKB/Swiss-Prot ID O19182
UniProtKB/Swiss-Prot Entry Name KCNJ2_BOVIN
PDB IDs
GenBank Gene ID AF020792
GeneCard ID KCNJ2
GenAtlas ID Not Available
HGNC ID Not Available
References
General References Not Available