======= IRS4 =======
== Gene Information ==
* **Official Symbol**: IRS4
* **Official Name**: insulin receptor substrate 4
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=8471|8471]]
* **UniProt**: [[https://www.uniprot.org/uniprot/O14654|O14654]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=IRS4&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20IRS4|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/300904|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: IRS4 encodes the insulin receptor substrate 4, a cytoplasmic protein that contains many potential tyrosine and serine/threonine phosphorylation sites. Tyrosine-phosphorylated IRS4 protein has been shown to associate with cytoplasmic signalling molecules that contain SH2 domains. The IRS4 protein is phosphorylated by the insulin receptor tyrosine kinase upon receptor stimulation.. [provided by RefSeq, Jul 2008].
* **UniProt Summary**: Acts as an interface between multiple growth factor receptors possessing tyrosine kinase activity, such as insulin receptor, IGF1R and FGFR1, and a complex network of intracellular signaling molecules containing SH2 domains. Involved in the IGF1R mitogenic signaling pathway. Promotes the AKT1 signaling pathway and BAD phosphorylation during insulin stimulation without activation of RPS6KB1 or the inhibition of apoptosis. Interaction with GRB2 enhances insulin-stimulated mitogen-activated protein kinase activity. May be involved in nonreceptor tyrosine kinase signaling in myoblasts. Plays a pivotal role in the proliferation/differentiation of hepatoblastoma cell through EPHB2 activation upon IGF1 stimulation. May play a role in the signal transduction in response to insulin and to a lesser extent in response to IL4 and GH on mitogenesis. Plays a role in growth, reproduction and glucose homeostasis. May act as negative regulators of the IGF1 signaling pathway by suppressing the function of IRS1 and IRS2. {ECO:0000269|PubMed:10531310, ECO:0000269|PubMed:10594015, ECO:0000269|PubMed:12639902, ECO:0000269|PubMed:17408801, ECO:0000269|PubMed:9553137}.
|IRS|
|phosphatidylinositol 3-kinase binding|
|insulin receptor binding|
|SH3/SH2 adaptor activity|
|insulin receptor signaling pathway|
|cellular response to insulin stimulus|
|response to insulin|
|cellular response to peptide hormone stimulus|
|cellular response to peptide|
|response to peptide hormone|
|response to peptide|
|transmembrane receptor protein tyrosine kinase signaling pathway|
|cellular response to organonitrogen compound|
|cellular response to hormone stimulus|
|cellular response to nitrogen compound|
|enzyme linked receptor protein signaling pathway|
|response to hormone|
|response to organonitrogen compound|
|cellular response to oxygen-containing compound|
|response to nitrogen compound|
|cellular response to endogenous stimulus|
|response to endogenous stimulus|
|response to oxygen-containing compound|
|positive regulation of signal transduction|
|positive regulation of cell communication|
|positive regulation of signaling|
\\
=== CRISPR Data ===
^Screen^Score^
|[[:results:exp71|KU-0063794 3.8μM R02 exp71]]|-1.7|
No correlation found to any other genes in chemogenomics.
Global Fraction of Cell Lines Where Essential: 2/694
^Tissue^Fraction Of Cell Lines Where Essential^
|1290807.0|0/1|
|909776.0|0/1|
|bile duct|0/28|
|blood|0/26|
|bone|0/26|
|breast|0/30|
|central nervous system|0/49|
|cervix|0/4|
|colorectal|0/17|
|esophagus|0/11|
|fibroblast|0/1|
|gastric|0/14|
|kidney|0/18|
|liver|0/19|
|lung|1/72|
|lymphocyte|0/16|
|ovary|0/25|
|pancreas|0/22|
|peripheral nervous system|0/15|
|plasma cell|0/12|
|prostate|0/1|
|skin|0/20|
|soft tissue|0/9|
|thyroid|0/2|
|upper aerodigestive|0/22|
|urinary tract|0/28|
|uterus|0/5|
== Essentiality in NALM6 ==
* **Essentiality Rank**: 11347
* **Expression level (log2 read counts)**: -7.68
{{:chemogenomics:nalm6 dist.png?nolink |}}