======= PLB1 =======
== Gene Information ==
* **Official Symbol**: PLB1
* **Official Name**: phospholipase B1
* **Aliases and Previous Symbols**: N/A
* **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=151056|151056]]
* **UniProt**: [[https://www.uniprot.org/uniprot/Q6P1J6|Q6P1J6]]
* **Interactions**: [[https://thebiogrid.org/search.php?search=PLB1&organism=9606|BioGRID]]
* **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20PLB1|Open PubMed]]
* **OMIM**: [[https://omim.org/entry/610179|Open OMIM]]
== Function Summary ==
* **Entrez Summary**: This gene encodes a membrane-associated phospholipase that displays lysophospholipase and phospholipase A2 activities through removal of sn-1 and sn-2 fatty acids of glycerophospholipids. In addition, it displays lipase and retinyl ester hydrolase activities. The encoded protein is highly conserved and is composed of a large, glycosylated extracellular domain composed of four tandem homologous domains, followed by a hydrophobic segment that anchors the enzyme to the membrane and a short C-terminal cytoplasmic tail. This gene has been identified as a candidate rheumatoid arthritis risk gene. [provided by RefSeq, Jul 2016].
* **UniProt Summary**: Membrane-associated phospholipase. Exhibits a calcium- independent broad substrate specificity including phospholipase A2/lysophospholipase activity. Preferential hydrolysis at the sn-2 position of diacylphospholipids and diacyglycerol, whereas it shows no positional specificity toward triacylglycerol. Exhibits also esterase activity toward p-nitrophenyl. May act on the brush border membrane to facilitate the absorption of digested lipids (By similarity). {ECO:0000250}.
|Lipase GDSL|
|retinyl-palmitate esterase activity|
|positive regulation of acrosome reaction|
|positive regulation of fertilization|
|regulation of acrosome reaction|
|lysophospholipase activity|
|phospholipase A2 activity consuming 1,2-dioleoylphosphatidylethanolamine)|
|phospholipase A2 activity (consuming 1,2-dipalmitoylphosphatidylcholine)|
|phosphatidylcholine acyl-chain remodeling|
|phospholipase A2 activity|
|regulation of fertilization|
|retinol metabolic process|
|brush border membrane|
|phosphatidylcholine metabolic process|
|primary alcohol metabolic process|
|positive regulation of reproductive process|
|retinoid metabolic process|
|diterpenoid metabolic process|
|terpenoid metabolic process|
|cellular hormone metabolic process|
|isoprenoid metabolic process|
|regulation of reproductive process|
|ammonium ion metabolic process|
|hormone metabolic process|
|lipid catabolic process|
|glycerophospholipid metabolic process|
|alcohol metabolic process|
|apical plasma membrane|
|phospholipid metabolic process|
|glycerolipid metabolic process|
|organic hydroxy compound metabolic process|
|positive regulation of multi-organism process|
|regulation of hormone levels|
|regulation of multi-organism process|
|organophosphate metabolic process|
|cellular lipid metabolic process|
|lipid metabolic process|
|small molecule metabolic process|
|organic substance catabolic process|
\\
=== CRISPR Data ===
^Screen^Score^
|[[:results:exp474|CR131-b 0.005μM R08 exp474]]|-1.97|
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**: 2851
* **Expression level (log2 read counts)**: -4.6
{{:chemogenomics:nalm6 dist.png?nolink |}}