======= BEST1 ======= == Gene Information == * **Official Symbol**: BEST1 * **Official Name**: bestrophin 1 * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=7439|7439]] * **UniProt**: [[https://www.uniprot.org/uniprot/O76090|O76090]] * **Interactions**: [[https://thebiogrid.org/search.php?search=BEST1&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20BEST1|Open PubMed]] * **OMIM**: [[https://omim.org/entry/607854|Open OMIM]] == Function Summary == * **Entrez Summary**: This gene encodes a member of the bestrophin gene family. This small gene family is characterized by proteins with a highly conserved N-terminus with four to six transmembrane domains. Bestrophins may form chloride ion channels or may regulate voltage-gated L-type calcium-ion channels. Bestrophins are generally believed to form calcium-activated chloride-ion channels in epithelial cells but they have also been shown to be highly permeable to bicarbonate ion transport in retinal tissue. Mutations in this gene are responsible for juvenile-onset vitelliform macular dystrophy (VMD2), also known as Best macular dystrophy, in addition to adult-onset vitelliform macular dystrophy (AVMD) and other retinopathies. Alternative splicing results in multiple variants encoding distinct isoforms.[provided by RefSeq, Nov 2008]. * **UniProt Summary**: Forms calcium-sensitive chloride channels. Highly permeable to bicarbonate. {ECO:0000269|PubMed:11904445, ECO:0000269|PubMed:12907679, ECO:0000269|PubMed:18400985}. |Bestrophin| |transepithelial chloride transport| |transepithelial transport| |detection of light stimulus involved in sensory perception| |detection of light stimulus involved in visual perception| |detection of visible light| |chloride channel complex| |chloride channel activity| |detection of light stimulus| |chloride transmembrane transport| |chloride transport| |inorganic anion transmembrane transport| |detection of external stimulus| |detection of abiotic stimulus| |inorganic anion transport| |basolateral plasma membrane| |visual perception| |sensory perception of light stimulus| |regulation of calcium ion transport| |anion transmembrane transport| |response to light stimulus| |regulation of metal ion transport| |response to radiation| |detection of stimulus involved in sensory perception| |anion transport| |inorganic ion transmembrane transport| |detection of stimulus| |regulation of ion transport| |ion transmembrane transport| |sensory perception| |identical protein binding| |response to abiotic stimulus| |transmembrane transport| |ion transport| |nervous system process| |regulation of transport| |system process| |membrane| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp535|Trimetrexate 0.03μM R08 exp535]]|-2.52| |[[:results:exp159|Docetaxel 0.001 to 0.002μM on day4 R04 exp159]]|-1.79| |[[:results:exp263|Aphidicolin 0.04μM R06 exp263]]|-1.76| 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**: 14825 * **Expression level (log2 read counts)**: 4.67 {{:chemogenomics:nalm6 dist.png?nolink |}}