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Literature summary for 3.1.4.11 extracted from

  • Rhee, S.G.
    Regulation of phosphoinositide-specific phospholipase C (2001), Annu. Rev. Biochem., 70, 281-312.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
B cell antigen receptor induces activation of PLC-gamma2, pathway Mammalia
G protein alpha12 activates PLC-epsilon Homo sapiens
G protein betagamma activates PLC-beta isoenzymes with the exception of PLC-beta4 Mammalia
G protein qalpha activates PLC-beta isoenzymes, G protein-coupled receptor-mediated activation Mammalia
additional information modes of activation/activation pathways of the PLC isoenzymes beta, gamma, delta and epsilon Mammalia
Ras activator of PLC-epsilon Homo sapiens
receptor protein tyrosine kinase activates PLC-gamma, growth factor receptor-mediated activation Mammalia
T cell antigen receptor induces activation of PLC-gamma1, pathway Mammalia

Crystallization (Commentary)

Crystallization (Comment) Organism
PLC-delta1 complexed with inositol 1,4,5-trisphosphate Rattus norvegicus

Localization

Localization Comment Organism GeneOntology No. Textmining
cell membrane the PH domain of PLC-delta1 may tether the enzyme to the cell membrane by specific binding to phosphatidylinositol 4,5-bisphosphate Rattus norvegicus
-
-
membrane PLC-beta Mammalia 16020
-
nucleus PLC-beta1 is the major isoform of the nucleus Mammalia 5634
-

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ requirement, mode of Ca2+ binding at the catalytic domain of PLC-delta1 Rattus norvegicus
Ca2+ requirement, PLC isoenzymes beta, gamma, delta and epsilon, delta-type isoenzymes are most sensitive Mammalia

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
85000
-
x * 85000, about, PLC-delta isoenzymes, x * 120000-155000, PLC-beta and -gamma isoenzymes, x * 230000-260000, PLC-epsilon Mammalia
230000
-
x * 230000, x * 260000, two alternatively spliced PLC-epsilon forms Homo sapiens
260000
-
x * 230000, x * 260000, two alternatively spliced PLC-epsilon forms Homo sapiens

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + H2O Mammalia regulation of PLC isoenzymes, cellular signaling 1D-myo-inositol 1,4,5-trisphosphate + diacylglycerol intracellular messengers ?

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
PLC-epsilon
-
Mammalia
-
PLC-beta, -gamma, -delta and -epsilon
-
Rattus norvegicus
-
PLC-delta1
-
Rattus norvegicus PLC-delta1
-
PLC-delta1
-

Posttranslational Modification

Posttranslational Modification Comment Organism
phosphoprotein PLC-gamma1 and 2, tyrosine phosphorylation activates enzyme Mammalia

Reaction

Reaction Comment Organism Reaction ID
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + H2O = 1D-myo-inositol 1,4,5-trisphosphate + diacylglycerol mechanism Mammalia

Source Tissue

Source Tissue Comment Organism Textmining
heart PLC-epsilon, most abundantly in Homo sapiens
-
additional information the two alternatively spliced forms of PLC-epsilon are present in a wide variety of human tissues Homo sapiens
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + H2O domain organization of the PLC isoenzymes beta, gamma, delta and epsilon, distinct regulatory domains Mammalia 1D-myo-inositol 1,4,5-trisphosphate + diacylglycerol
-
?
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + H2O domain structure of PLC-epsilon, contains RasGEF and RA domains Homo sapiens 1D-myo-inositol 1,4,5-trisphosphate + diacylglycerol
-
?
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + H2O PLC-delta1, structure of the catalytic domain, His-311 and His-356 act as general acid-base catalysts Rattus norvegicus 1D-myo-inositol 1,4,5-trisphosphate + diacylglycerol 4- and 5-phosphoryl groups of inositol 1,4,5-trisphosphate interact with the side chains of Lys-32 and Lys-57 and with those of Lys-30, Arg-40 and Lys-57 of PLC-delta1, respectively ?
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + H2O regulation of PLC isoenzymes, cellular signaling Mammalia 1D-myo-inositol 1,4,5-trisphosphate + diacylglycerol intracellular messengers ?
1-phosphatidyl-1D-myo-inositol 4,5-bisphosphate + H2O PLC-delta1, structure of the catalytic domain, His-311 and His-356 act as general acid-base catalysts Rattus norvegicus PLC-delta1 1D-myo-inositol 1,4,5-trisphosphate + diacylglycerol 4- and 5-phosphoryl groups of inositol 1,4,5-trisphosphate interact with the side chains of Lys-32 and Lys-57 and with those of Lys-30, Arg-40 and Lys-57 of PLC-delta1, respectively ?
phosphatidylinositol + H2O PLC-delta1, structure of the catalytic domain Rattus norvegicus ?
-
?
phosphatidylinositol + H2O PLC-delta1, structure of the catalytic domain Rattus norvegicus PLC-delta1 ?
-
?
phosphatidylinositol 4-phosphate + H2O PLC-delta1, structure of the catalytic domain Rattus norvegicus ?
-
?
phosphatidylinositol 4-phosphate + H2O PLC-delta1, structure of the catalytic domain Rattus norvegicus PLC-delta1 ?
-
?

Subunits

Subunits Comment Organism
? x * 230000, x * 260000, two alternatively spliced PLC-epsilon forms Homo sapiens
? x * 85000, about, PLC-delta isoenzymes, x * 120000-155000, PLC-beta and -gamma isoenzymes, x * 230000-260000, PLC-epsilon Mammalia

Synonyms

Synonyms Comment Organism
More four PLC subfamilies: beta, gamma, delta and epsilon Mammalia