======= JPH2 ======= == Gene Information == * **Official Symbol**: JPH2 * **Official Name**: junctophilin 2 * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=57158|57158]] * **UniProt**: [[https://www.uniprot.org/uniprot/Q9BR39|Q9BR39]] * **Interactions**: [[https://thebiogrid.org/search.php?search=JPH2&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20JPH2|Open PubMed]] * **OMIM**: [[https://omim.org/entry/605267|Open OMIM]] == Function Summary == * **Entrez Summary**: Junctional complexes between the plasma membrane and endoplasmic/sarcoplasmic reticulum are a common feature of all excitable cell types and mediate cross talk between cell surface and intracellular ion channels. The protein encoded by this gene is a component of junctional complexes and is composed of a C-terminal hydrophobic segment spanning the endoplasmic/sarcoplasmic reticulum membrane and a remaining cytoplasmic domain that shows specific affinity for the plasma membrane. This gene is a member of the junctophilin gene family. Alternative splicing has been observed at this locus and two variants encoding distinct isoforms are described. [provided by RefSeq, Jul 2008]. * **UniProt Summary**: Junctophilins contribute to the formation of junctional membrane complexes (JMCs) which link the plasma membrane with the endoplasmic or sarcoplasmic reticulum in excitable cells. Provides a structural foundation for functional cross-talk between the cell surface and intracellular calcium release channels. JPH2 is necessary for proper intracellular Ca(2+) signaling in cardiac myocytes via its involvement in ryanodine receptor-mediated calcium ion release. Contributes to the construction of skeletal muscle triad junctions. {ECO:0000269|PubMed:20095964}. |MORN| |junctional membrane complex| |positive regulation of ryanodine-sensitive calcium-release channel activity| |junctional sarcoplasmic reticulum membrane| |calcium-release channel activity| |phosphatidylinositol-5-phosphate binding| |phosphatidic acid binding| |regulation of ryanodine-sensitive calcium-release channel activity| |phosphatidylinositol-3,5-bisphosphate binding| |phosphatidylinositol-4-phosphate binding| |phosphatidylinositol-3,4,5-trisphosphate binding| |positive regulation of calcium ion transmembrane transporter activity| |phosphatidylinositol-3-phosphate binding| |positive regulation of release of sequestered calcium ion into cytosol| |positive regulation of calcium-mediated signaling| |sarcoplasmic reticulum| |positive regulation of calcium ion transport into cytosol| |release of sequestered calcium ion into cytosol| |negative regulation of sequestering of calcium ion| |phosphatidylserine binding| |calcium ion transmembrane import into cytosol| |positive regulation of cation channel activity| |positive regulation of calcium ion transmembrane transport| |calcium ion transport into cytosol| |phosphatidylinositol-4,5-bisphosphate binding| |regulation of release of sequestered calcium ion into cytosol| |regulation of cardiac muscle tissue development| |regulation of calcium ion transmembrane transporter activity| |cytosolic calcium ion transport| |regulation of calcium-mediated signaling| |regulation of calcium ion transport into cytosol| |positive regulation of ion transmembrane transporter activity| |positive regulation of transporter activity| |positive regulation of calcium ion transport| |regulation of sequestering of calcium ion| |Z disc| |regulation of striated muscle tissue development| |regulation of muscle tissue development| |regulation of muscle organ development| |positive regulation of cation transmembrane transport| |regulation of calcium ion transmembrane transport| |positive regulation of ion transmembrane transport| |regulation of cation channel activity| |calcium ion transmembrane transport| |positive regulation of transmembrane transport| |regulation of calcium ion transport| |calcium ion transport| |regulation of ion transmembrane transporter activity| |regulation of transmembrane transporter activity| |positive regulation of ion transport| |regulation of transporter activity| |positive regulation of cytosolic calcium ion concentration| |divalent metal ion transport| |divalent inorganic cation transport| |regulation of cytosolic calcium ion concentration| |regulation of cation transmembrane transport| |regulation of metal ion transport| |cellular calcium ion homeostasis| |calcium ion homeostasis| |cellular divalent inorganic cation homeostasis| |regulation of ion transmembrane transport| |divalent inorganic cation homeostasis| |cellular metal ion homeostasis| |inorganic cation transmembrane transport| |regulation of transmembrane transport| |cation transmembrane transport| |metal ion homeostasis| |cellular cation homeostasis| |metal ion transport| |cellular ion homeostasis| |inorganic ion transmembrane transport| |regulation of ion transport| |cation homeostasis| |inorganic ion homeostasis| |cellular chemical homeostasis| |ion homeostasis| |cation transport| |cellular homeostasis| |regulation of cellular localization| |endoplasmic reticulum membrane| |ion transmembrane transport| |positive regulation of transport| |endoplasmic reticulum| |positive regulation of intracellular signal transduction| |chemical homeostasis| |transmembrane transport| |ion transport| |DNA binding| |homeostatic process| |positive regulation of signal transduction| |positive regulation of molecular function| |positive regulation of cell communication| |positive regulation of signaling| |regulation of intracellular signal transduction| |establishment of localization in cell| |regulation of transport| \\ === CRISPR Data === No hits were found. 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**: 7213 * **Expression level (log2 read counts)**: -2.79 {{:chemogenomics:nalm6 dist.png?nolink |}}