======= SLC8B1 =======
== Gene Information ==
* **Official Symbol**: SLC8B1
* **Official Name**: solute carrier family 8 member B1
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=80024|80024]]
* **UniProt**: [[https://www.uniprot.org/uniprot/Q6J4K2|Q6J4K2]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=SLC8B1&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20SLC8B1|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/609841|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: N/A
* **UniProt Summary**: Mitochondrial sodium/calcium antiporter that mediates sodium-dependent calcium efflux from mitochondrion, by mediating the exchange of 3 sodium ions per 1 calcium ion (PubMed:20018762, PubMed:22829870, PubMed:23056385, PubMed:24898248, PubMed:28219928). Plays a central role in mitochondrial calcium homeostasis by mediating mitochondrial calcium extrusion: calcium efflux is essential for mitochondrial function and cell survival, notably in cardiomyocytes (By similarity). Regulates rates of glucose-dependent insulin secretion in pancreatic beta-cells during the first phase of insulin secretion: acts by mediating efflux of calcium from mitochondrion, thereby affecting cytoplasmic calcium responses (PubMed:23056385). Required for store-operated Ca(2+) entry (SOCE) and Ca(2+) release-activated Ca(2+) (CRAC) channel regulation: sodium transport by SLC8B1 leads to promote calcium-shuttling that modulates mitochondrial redox status, thereby regulating SOCE activity (PubMed:28219928). Involved in B-lymphocyte chemotaxis (By similarity). Able to transport Ca(2+) in exchange of either Li(+) or Na(+), explaining how Li(+) catalyzes Ca(2+) exchange (PubMed:15060069). In contrast to other members of the family its function is independent of K(+) (PubMed:15060069). {ECO:0000250|UniProtKB:Q925Q3, ECO:0000269|PubMed:15060069, ECO:0000269|PubMed:20018762, ECO:0000269|PubMed:22829870, ECO:0000269|PubMed:23056385, ECO:0000269|PubMed:24898248, ECO:0000269|PubMed:28219928}.
|Na Ca ex|
|calcium:sodium antiporter activity involved in regulation of cardiac muscle cell membrane potential|
|calcium:cation antiporter activity|
|calcium export from the mitochondrion|
|calcium:sodium antiporter activity|
|mitochondrial crista|
|calcium ion export|
|regulation of cardiac muscle cell membrane potential|
|integral component of mitochondrial membrane|
|regulation of store-operated calcium entry|
|mitochondrial calcium ion transmembrane transport|
|mitochondrial calcium ion homeostasis|
|regulation of lymphocyte chemotaxis|
|release of sequestered calcium ion into cytosol|
|negative regulation of sequestering of calcium ion|
|regulation of lymphocyte migration|
|calcium ion transmembrane import into cytosol|
|calcium ion transport into cytosol|
|cytosolic calcium ion transport|
|sodium ion transmembrane transport|
|mitochondrial transmembrane transport|
|sarcolemma|
|regulation of leukocyte chemotaxis|
|regulation of sequestering of calcium ion|
|sodium ion transport|
|regulation of insulin secretion|
|glucose homeostasis|
|carbohydrate homeostasis|
|regulation of leukocyte migration|
|calcium ion transmembrane transport|
|regulation of peptide hormone secretion|
|regulation of chemotaxis|
|mitochondrial transport|
|regulation of calcium ion transport|
|calcium ion transport|
|regulation of hormone secretion|
|positive regulation of cytosolic calcium ion concentration|
|divalent metal ion transport|
|divalent inorganic cation transport|
|regulation of cytosolic calcium ion concentration|
|regulation of metal ion transport|
|mitochondrial inner membrane|
|monovalent inorganic cation transport|
|regulation of membrane potential|
|cellular calcium ion homeostasis|
|calcium ion homeostasis|
|regulation of protein secretion|
|cellular divalent inorganic cation homeostasis|
|divalent inorganic cation homeostasis|
|regulation of peptide secretion|
|regulation of hormone levels|
|cellular metal ion homeostasis|
|inorganic cation 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|
|regulation of protein transport|
|cation homeostasis|
|inorganic ion homeostasis|
|regulation of peptide transport|
|cellular chemical homeostasis|
|regulation of establishment of protein localization|
|regulation of secretion by cell|
|ion homeostasis|
|regulation of secretion|
|cation transport|
|regulation of cell migration|
|protein homodimerization activity|
|cellular homeostasis|
|regulation of cell motility|
|ion transmembrane transport|
|regulation of locomotion|
|regulation of cellular component movement|
|regulation of protein localization|
|regulation of response to external stimulus|
|chemical homeostasis|
|transmembrane transport|
|ion transport|
|homeostatic process|
|regulation of immune system process|
|establishment of localization in cell|
|regulation of transport|
\\
=== CRISPR Data ===
^Screen^Score^
|[[:results:exp295|Pyronaridine 1μM R06 exp295]]|-1.76|
|[[:results:exp165|RO-3306 3 to 4μM on day4 R04 exp165]]|1.88|
|[[:results:exp114|A-196 10μM R03 exp114]]|2.09|
|[[:results:exp530|Thioridazine 5μM R08 exp530]]|2.2|
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**: 8681
* **Expression level (log2 read counts)**: 3.89
{{:chemogenomics:nalm6 dist.png?nolink |}}