======= KCNJ8 =======
== Gene Information ==
* **Official Symbol**: KCNJ8
* **Official Name**: potassium inwardly rectifying channel subfamily J member 8
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=3764|3764]]
* **UniProt**: [[https://www.uniprot.org/uniprot/Q15842|Q15842]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=KCNJ8&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20KCNJ8|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/600935|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: Potassium channels are present in most mammalian cells, where they participate in a wide range of physiologic responses. The protein encoded by this gene is an integral membrane protein and inward-rectifier type potassium channel. The encoded protein, which has a greater tendency to allow potassium to flow into a cell rather than out of a cell, is controlled by G-proteins. Defects in this gene may be a cause of J-wave syndromes and sudden infant death syndrome (SIDS). [provided by RefSeq, May 2012].
* **UniProt Summary**: This potassium channel is controlled by G proteins. 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 external barium (By similarity). {ECO:0000250|UniProtKB:Q63664, ECO:0000269|PubMed:28842488}.
|IRK|
|ATP-activated inward rectifier potassium channel activity|
|ventricular cardiac muscle cell membrane repolarization|
|membrane repolarization during ventricular cardiac muscle cell action potential|
|voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization|
|membrane repolarization during action potential|
|cardiac muscle cell membrane repolarization|
|membrane repolarization during cardiac muscle cell action potential|
|inward rectifier potassium channel activity|
|membrane repolarization|
|ventricular cardiac muscle cell action potential|
|cardiac muscle cell action potential involved in contraction|
|cardiac muscle cell contraction|
|potassium ion import across plasma membrane|
|cardiac muscle cell action potential|
|inorganic cation import across plasma membrane|
|inorganic ion import across plasma membrane|
|cardiac muscle contraction|
|voltage-gated potassium channel complex|
|heart contraction|
|actin-mediated cell contraction|
|action potential|
|import across plasma membrane|
|heart process|
|striated muscle contraction|
|actin filament-based movement|
|potassium ion transmembrane transport|
|potassium ion transport|
|muscle contraction|
|muscle system process|
|blood circulation|
|circulatory system process|
|monovalent inorganic cation transport|
|regulation of membrane potential|
|regulation of ion transmembrane transport|
|inorganic cation transmembrane transport|
|regulation of transmembrane transport|
|actin filament-based process|
|cation transmembrane transport|
|metal ion transport|
|inorganic ion transmembrane transport|
|import into cell|
|regulation of ion transport|
|cation transport|
|ion transmembrane transport|
|transmembrane transport|
|ion transport|
|movement of cell or subcellular component|
|regulation of transport|
|system process|
\\
=== CRISPR Data ===
^Screen^Score^
|[[:results:exp487|Hinokiflavone 12μM R08 exp487]]|-1.85|
|[[:results:exp114|A-196 10μM R03 exp114]]|1.98|
No correlation found to any other genes in chemogenomics.
Global Fraction of Cell Lines Where Essential: 0/739
^Tissue^Fraction Of Cell Lines Where Essential^
|1290807.0|0/1|
|909776.0|0/1|
|bile duct|0/28|
|blood|0/28|
|bone|0/26|
|breast|0/33|
|central nervous system|0/56|
|cervix|0/4|
|colorectal|0/17|
|esophagus|0/13|
|fibroblast|0/1|
|gastric|0/16|
|kidney|0/21|
|liver|0/20|
|lung|0/75|
|lymphocyte|0/16|
|ovary|0/26|
|pancreas|0/24|
|peripheral nervous system|0/16|
|plasma cell|0/15|
|prostate|0/1|
|skin|0/24|
|soft tissue|0/9|
|thyroid|0/2|
|upper aerodigestive|0/22|
|urinary tract|0/29|
|uterus|0/5|
== Essentiality in NALM6 ==
* **Essentiality Rank**: 9006
* **Expression level (log2 read counts)**: -7.68
{{:chemogenomics:nalm6 dist.png?nolink |}}