======= LCT ======= == Gene Information == * **Official Symbol**: LCT * **Official Name**: lactase * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=3938|3938]] * **UniProt**: [[https://www.uniprot.org/uniprot/P09848|P09848]] * **Interactions**: [[https://thebiogrid.org/search.php?search=LCT&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20LCT|Open PubMed]] * **OMIM**: [[https://omim.org/entry/603202|Open OMIM]] == Function Summary == * **Entrez Summary**: The protein encoded by this gene belongs to the glycosyl hydrolase 1 family of proteins. The encoded preproprotein is proteolytically processed to generate the mature enzyme. This enzyme is integral to the plasma membrane and has both phlorizin hydrolase activity and lactase activity. Mutations in this gene are associated with congenital lactase deficiency. Polymorphisms in this gene are associated with lactase persistence, in which intestinal lactase activity persists at childhood levels into adulthood. [provided by RefSeq, Jan 2016]. * **UniProt Summary**: LPH splits lactose in the small intestine. |Glyco hydro 1| |lactase activity| |glycosylceramidase activity| |beta-glucosidase activity| |polysaccharide digestion| |digestion| |apical plasma membrane| |carbohydrate metabolic process| |integral component of plasma membrane| |membrane| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp101|Nicotinamide 1000μM R03 exp101]]|1.75| |[[:results:exp235|Geldanamycin 0.01μM R05 exp235]]|1.77| 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**: 5540 * **Expression level (log2 read counts)**: 0.38 {{:chemogenomics:nalm6 dist.png?nolink |}}