PLCB1

Phospholipase C, beta 1 (phosphoinositide-specific)
Identifiers
Symbols	PLCB1; EIEE12; FLJ45792; PI-PLC; PLC-154; PLC-I; PLC154; PLCB1A; PLCB1B
External IDs	OMIM: 607120 MGI: 97613 HomoloGene: 22876 GeneCards: PLCB1 Gene
EC number	3.1.4.11
Gene Ontology Molecular function • phosphatidylinositol phospholipase C activity • phosphatidylinositol phospholipase C activity • signal transducer activity • GTPase activator activity • calcium ion binding • calmodulin binding • phosphatidylinositol-4,5-bisphosphate binding • hydrolase activity • enzyme binding • protein homodimerization activity Cellular component • nuclear chromatin • membrane fraction • nucleus • cytoplasm • cytosol • cytosol • nuclear speck Biological process • G2/M transition of mitotic cell cycle • signal transduction • muscarinic acetylcholine receptor signaling pathway • glutamate signaling pathway • synaptic transmission • learning • memory • regulation of G-protein coupled receptor protein signaling pathway • lipid catabolic process • cerebral cortex development • positive regulation of interleukin-12 production • intracellular signal transduction • interleukin-12-mediated signaling pathway • interleukin-15-mediated signaling pathway • CD24 biosynthetic process • positive regulation of embryonic development • positive regulation of GTPase activity • positive regulation of myoblast differentiation • negative regulation of transcription, DNA-dependent • positive regulation of transcription, DNA-dependent • positive regulation of JNK cascade • phosphatidylinositol metabolic process • insulin-like growth factor receptor signaling pathway • positive regulation of developmental growth • G1 phase • activation of meiosis involved in egg activation • interleukin-1-mediated signaling pathway • regulation of fertilization • positive regulation of acrosome reaction • negative regulation of monocyte extravasation Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	23236	18795
Ensembl	ENSG00000182621	ENSMUSG00000051177
UniProt	Q9NQ66	Q2M4J2
RefSeq (mRNA)	NM_015192.2	NM_019677
RefSeq (protein)	NP_056007.1	NP_062651
Location (UCSC)	Chr 20: 8.11 – 8.95 Mb	Chr 2: 134.61 – 135.3 Mb
PubMed search	[1]	[2]

1-Phosphatidylinositol-4,5-bisphosphate phosphodiesterase beta-1 is an enzyme that in humans is encoded by the PLCB1 gene.

The protein encoded by this gene catalyzes the formation of inositol 1,4,5-trisphosphate and diacylglycerol from phosphatidylinositol 4,5-bisphosphate. This reaction uses calcium as a cofactor and plays an important role in the intracellular transduction of many extracellular signals. This gene is activated by two G-protein alpha subunits, alpha-q and alpha-11. Two transcript variants encoding different isoforms have been found for this gene.

Interactions

PLCB1 has been shown to interact with TRPM7.

Further reading

• Nakajima D, Okazaki N, Yamakawa H, et al. (2003). "Construction of expression-ready cDNA clones for KIAA genes: manual curation of 330 KIAA cDNA clones". DNA Res. 9 (3): 99–106. doi:10.1093/dnares/9.3.99. PMID 12168954. 
• Martelli AM, Fiume R, Faenza I, et al. (2006). "Nuclear phosphoinositide specific phospholipase C (PI-PLC)-beta 1: a central intermediary in nuclear lipid-dependent signal transduction". Histol. Histopathol. 20 (4): 1251–60. PMID 16136505. 
• Cocco L, Follo MY, Faenza I, et al. (2007). "Nuclear inositide signaling: an appraisal of phospholipase C beta 1 behavior in myelodysplastic and leukemia cells". Adv. Enzyme Regul. 47: 2–9. doi:10.1016/j.advenzreg.2006.12.003. PMID 17335878. 
• Cefai D, Debre P, Kaczorek M, et al. (1991). "Human immunodeficiency virus-1 glycoproteins gp120 and gp160 specifically inhibit the CD3/T cell-antigen receptor phosphoinositide transduction pathway". J. Clin. Invest. 86 (6): 2117–24. doi:10.1172/JCI114950. PMC 329852. PMID 1979339. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=329852. 
• Zauli G, Previati M, Caramelli E, et al. (1995). "Exogenous human immunodeficiency virus type-1 Tat protein selectively stimulates a phosphatidylinositol-specific phospholipase C nuclear pathway in the Jurkat T cell line". Eur. J. Immunol. 25 (9): 2695–700. doi:10.1002/eji.1830250944. PMID 7589147. 
• Hwang SC, Park KH, Ha MJ, et al. (1997). "Distribution of phospholipase C isozymes in normal human lung tissue and their immunohistochemical localization". J. Korean Med. Sci. 11 (4): 305–13. PMC 3054083. PMID 8878798. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3054083. 
• Chen P, Mayne M, Power C, Nath A (1997). "The Tat protein of HIV-1 induces tumor necrosis factor-alpha production. Implications for HIV-1-associated neurological diseases". J. Biol. Chem. 272 (36): 22385–8. doi:10.1074/jbc.272.36.22385. PMID 9278385. 
• Nagase T, Ishikawa K, Miyajima N, et al. (1998). "Prediction of the coding sequences of unidentified human genes. IX. The complete sequences of 100 new cDNA clones from brain which can code for large proteins in vitro". DNA Res. 5 (1): 31–9. doi:10.1093/dnares/5.1.31. PMID 9628581. 
• Snow BE, Hall RA, Krumins AM, et al. (1998). "GTPase activating specificity of RGS12 and binding specificity of an alternatively spliced PDZ (PSD-95/Dlg/ZO-1) domain". J. Biol. Chem. 273 (28): 17749–55. doi:10.1074/jbc.273.28.17749. PMID 9651375. 
• Mayne M, Bratanich AC, Chen P, et al. (1998). "HIV-1 tat molecular diversity and induction of TNF-alpha: implications for HIV-induced neurological disease". Neuroimmunomodulation 5 (3–4): 184–92. doi:10.1159/000026336. PMID 9730685. 
• Haughey NJ, Holden CP, Nath A, Geiger JD (1999). "Involvement of inositol 1,4,5-trisphosphate-regulated stores of intracellular calcium in calcium dysregulation and neuron cell death caused by HIV-1 protein tat". J. Neurochem. 73 (4): 1363–74. doi:10.1046/j.1471-4159.1999.0731363.x. PMID 10501179. 
• Mayne M, Holden CP, Nath A, Geiger JD (2000). "Release of calcium from inositol 1,4,5-trisphosphate receptor-regulated stores by HIV-1 Tat regulates TNF-alpha production in human macrophages". J. Immunol. 164 (12): 6538–42. PMID 10843712. 
• Tang Y, Tang J, Chen Z, et al. (2001). "Association of mammalian trp4 and phospholipase C isozymes with a PDZ domain-containing protein, NHERF". J. Biol. Chem. 275 (48): 37559–64. doi:10.1074/jbc.M006635200. PMID 10980202. 
• Dowal L, Elliott J, Popov S, et al. (2001). "Determination of the contact energies between a regulator of G protein signaling and G protein subunits and phospholipase C beta 1". Biochemistry 40 (2): 414–21. doi:10.1021/bi001923. PMID 11148035. 
• Xu A, Wang Y, Xu LY, Gilmour RS (2001). "Protein kinase C alpha -mediated negative feedback regulation is responsible for the termination of insulin-like growth factor I-induced activation of nuclear phospholipase C beta1 in Swiss 3T3 cells". J. Biol. Chem. 276 (18): 14980–6. doi:10.1074/jbc.M009144200. PMID 11278470. 
• Xu A, Suh PG, Marmy-Conus N, et al. (2001). "Phosphorylation of nuclear phospholipase C beta1 by extracellular signal-regulated kinase mediates the mitogenic action of insulin-like growth factor I". Mol. Cell. Biol. 21 (9): 2981–90. doi:10.1128/MCB.21.9.2981-2990.2001. PMC 86927. PMID 11287604. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=86927. 
• Vitale M, Matteucci A, Manzoli L, et al. (2001). "Interleukin 2 activates nuclear phospholipase Cbeta by mitogen-activated protein kinase-dependent phosphorylation in human natural killer cells". FASEB J. 15 (10): 1789–91. PMID 11481231. 
• Singer AU, Waldo GL, Harden TK, Sondek J (2002). "A unique fold of phospholipase C-beta mediates dimerization and interaction with G alpha q". Nat. Struct. Biol. 9 (1): 32–6. doi:10.1038/nsb731. PMID 11753430.