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1-Phosphatidylinositol-4,5-bisphosphate phosphodiesterase delta-3 is an enzyme that in humans is encoded by the PLCD3 gene.[1][2][3]


This gene encodes a member of the phospholipase C family, which catalyze the hydrolysis of phosphatidylinositol 4,5-bisphosphate to generate the second messengers diacylglycerol and inositol 1,4,5-trisphosphate (IP3). Diacylglycerol and IP3 mediate a variety of cellular responses to extracellular stimuli by inducing protein kinase C and increasing cytosolic Ca2+ concentrations. This enzyme localizes to the plasma membrane and requires calcium for activation. Its activity is inhibited by spermine, sphingosine, and several phospholipids.[3]


  1. Kim H, Suh PG, Ryu SH, Park SH (Apr 2000). "Assignment of the human PLC delta3 gene (PLCD3) to human chromosome band 17q21 by fluorescence in situ hybridization". Cytogenetics and Cell Genetics. 87 (3–4): 209–10. doi:10.1159/000015469. PMID 10702670.
  2. Ghosh S, Pawelczyk T, Lowenstein JM (Mar 1997). "Phospholipase C isoforms delta 1 and delta 3 from human fibroblasts. High-yield expression in Escherichia coli, simple purification, and properties". Protein Expression and Purification. 9 (2): 262–78. doi:10.1006/prep.1996.0682. PMID 9056492.
  3. 3.0 3.1 "Entrez Gene: PLCD3 phospholipase C, delta 3".

Further reading

  • Cefai D, Debre P, Kaczorek M, Idziorek T, Autran B, Bismuth G (Dec 1990). "Human immunodeficiency virus-1 glycoproteins gp120 and gp160 specifically inhibit the CD3/T cell-antigen receptor phosphoinositide transduction pathway". The Journal of Clinical Investigation. 86 (6): 2117–24. doi:10.1172/JCI114950. PMC 329852. PMID 1979339.
  • Zauli G, Previati M, Caramelli E, Bassini A, Falcieri E, Gibellini D, Bertolaso L, Bosco D, Robuffo I, Capitani S (Sep 1995). "Exogenous human immunodeficiency virus type-1 Tat protein selectively stimulates a phosphatidylinositol-specific phospholipase C nuclear pathway in the Jurkat T cell line". European Journal of Immunology. 25 (9): 2695–700. doi:10.1002/eji.1830250944. PMID 7589147.
  • Chen P, Mayne M, Power C, Nath A (Sep 1997). "The Tat protein of HIV-1 induces tumor necrosis factor-alpha production. Implications for HIV-1-associated neurological diseases". The Journal of Biological Chemistry. 272 (36): 22385–8. doi:10.1074/jbc.272.36.22385. PMID 9278385.
  • Pawełczyk T, Matecki A (1998). "Expression, purification and kinetic properties of human recombinant phospholipase C delta 3". Acta Biochimica Polonica. 44 (2): 221–9. PMID 9360711.
  • Mayne M, Bratanich AC, Chen P, Rana F, Nath A, Power C (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.
  • Pawelczyk T, Matecki A (Oct 1998). "Localization of phospholipase C delta3 in the cell and regulation of its activity by phospholipids and calcium". European Journal of Biochemistry / FEBS. 257 (1): 169–77. doi:10.1046/j.1432-1327.1998.2570169.x. PMID 9799116.
  • Pawelczyk T, Matecki A (Jun 1999). "Phospholipase C-delta3 binds with high specificity to phosphatidylinositol 4,5-bisphosphate and phosphatidic acid in bilayer membranes". European Journal of Biochemistry / FEBS. 262 (2): 291–8. doi:10.1046/j.1432-1327.1999.00388.x. PMID 10336610.
  • Haughey NJ, Holden CP, Nath A, Geiger JD (Oct 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". Journal of Neurochemistry. 73 (4): 1363–74. doi:10.1046/j.1471-4159.1999.0731363.x. PMID 10501179.
  • Mayne M, Holden CP, Nath A, Geiger JD (Jun 2000). "Release of calcium from inositol 1,4,5-trisphosphate receptor-regulated stores by HIV-1 Tat regulates TNF-alpha production in human macrophages". Journal of Immunology. 164 (12): 6538–42. doi:10.4049/jimmunol.164.12.6538. PMID 10843712.
  • Lin FG, Cheng HF, Lee IF, Kao HJ, Loh SH, Lee WH (Aug 2001). "Downregulation of phospholipase C delta3 by cAMP and calcium". Biochemical and Biophysical Research Communications. 286 (2): 274–80. doi:10.1006/bbrc.2001.5371. PMID 11500033.
  • Ananthanarayanan B, Das S, Rhee SG, Murray D, Cho W (Feb 2002). "Membrane targeting of C2 domains of phospholipase C-delta isoforms". The Journal of Biological Chemistry. 277 (5): 3568–75. doi:10.1074/jbc.M109705200. PMID 11706040.
  • Nagase T, Kikuno R, Ohara O (Dec 2001). "Prediction of the coding sequences of unidentified human genes. XXII. The complete sequences of 50 new cDNA clones which code for large proteins". DNA Research. 8 (6): 319–27. doi:10.1093/dnares/8.6.319. PMID 11853319.
  • Bennasser Y, Badou A, Tkaczuk J, Bahraoui E (Nov 2002). "Signaling pathways triggered by HIV-1 Tat in human monocytes to induce TNF-alpha". Virology. 303 (1): 174–80. doi:10.1006/viro.2002.1676. PMID 12482669.
  • Colland F, Jacq X, Trouplin V, Mougin C, Groizeleau C, Hamburger A, Meil A, Wojcik J, Legrain P, Gauthier JM (Jul 2004). "Functional proteomics mapping of a human signaling pathway". Genome Research. 14 (7): 1324–32. doi:10.1101/gr.2334104. PMC 442148. PMID 15231748.