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6421
SignalSilence® PLCgamma 1 siRNA (Human Specific)
siRNA

SignalSilence® PLCgamma 1 siRNA (Human Specific) #6421

This product is discontinued

Western Blotting

Western blot analysis of extracts from HeLa cells transfected with 100 nM control siRNA #6201 (-) or PLCgamma1 siRNA (+), using PLCgamma1 Antibody #2822 and p42 MAP Kinase (Erk2) Antibody #9108. The PLCgamma1 Antibody confirms silencing of PLCgamma1 expression, and p42 MAP Kinase (Erk2) Antibody is used to control for loading and specificity of PLCgamma1 siRNA.

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Fluorescent Detection

Fluorescent detection of SignalSilence® Control siRNA (Fluorescein Conjugate) #6201 in living HeLa cells 24 hours post-transfection, demonstrating nearly 100% transfection efficiency.

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CST recommends transfection with 100 nM human-specific PLCgamma1 siRNA 48 to 72 hours prior to cell lysis. See Protocol for transfection procedure

Storage:

SignalSilence® siRNA is supplied in RNAse-free water. Aliquot and store at -20ºC.

SignalSilence® PLCgamma1 siRNA from Cell Signaling Technology allows the researcher to specifically inhibit PLCgamma1 expression using RNA interference, a method in which gene expression can be selectively silenced through the delivery of double stranded RNA molecules into the cell. All SignalSilence® siRNA products are rigorously tested in-house and have been shown to reduce protein expression in specified cell lines.

Phosphoinositide-specific phospholipase C (PLC) plays a significant role in transmembrane signaling. In response to extracellular stimuli such as hormones, growth factors and neurotransmitters, PLC hydrolyzes phosphatidylinositol 4,5-bisphosphate (PIP2) to generate two secondary messengers: inositol 1,4,5-triphosphate (IP3) and diacylglycerol (DAG) (1). At least four families of PLCs have been identified: PLCβ, PLCγ, PLCδ and PLCε. The PLCβ subfamily includes four members, PLCβ1-4. All four members of the subfamily are activated by α- or β-γ-subunits of the heterotrimeric G-proteins (2,3).

Phosphorylation is one of the key mechanisms that regulates the activity of PLC. Phosphorylation of Ser1105 by PKA or PKC inhibits PLCβ3 activity (4,5). Ser537 of PLCβ3 is phosphorylated by CaMKII, and this phosphorylation may contribute to the basal activity of PLCβ3. PLCγ is activated by both receptor and nonreceptor tyrosine kinases (6).

PLCγ forms a complex with EGF and PDGF receptors, which leads to the phosphorylation of PLCγ at Tyr771, 783 and 1248 (7). Phosphorylation by Syk at Tyr783 activates the enzymatic activity of PLCγ1 (8).

Small interfering RNA (siRNA) has been used to specifically silence PLCgamma1 expression in HepG2 cells (9).

  1. Singer, W.D. et al. (1997) Annu Rev Biochem 66, 475-509.
  2. Smrcka, A.V. et al. (1991) Science 251, 804-7.
  3. Taylor, S.J. et al. (1991) Nature 350, 516-8.
  4. Yue, C. et al. (1998) J Biol Chem 273, 18023-7.
  5. Yue, C. et al. (2000) J Biol Chem 275, 30220-5.
  6. Margolis, B. et al. (1989) Cell 57, 1101-7.
  7. Kim, H.K. et al. (1991) Cell 65, 435-41.
  8. Wang, Z. et al. (1998) Mol Cell Biol 18, 590-7.
  9. Kwon, Y.K. et al. (2003) J Cell Biol 163, 375-84.
Entrez-Gene Id
5335
Swiss-Prot Acc.
P19174
For Research Use Only. Not For Use In Diagnostic Procedures.

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
SignalSilence is a registered trademark of Cell Signaling Technology, Inc.
Limited Use Label License, RNA interference: This product is licensed under European Patent 1144623 and foreign equivalents from Ribopharma AG, Kulmbach, Germany and is provided only for use in non-commercial research specifically excluding use (a) in drug discovery or drug development, including target identification or target validation, by or on behalf of a commercial entity, (b) for contract research or commercial screening services, (c) for the production or manufacture of siRNA-related products for sale, or (d) for the generation of commercial databases for sale to Third Parties. Information about licenses for these and other commercial uses is available from Ribopharma AG, Fritz-Hornschuch-Str. 9, D-95326 Kulmbach, Germany.

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