Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.1.4.3 (phospholipase C)
 18,461 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Two proteins of the IP3 transduction pathway were identified by Western blots in homogenates of isolated pheromone-sensitive sensilla of the silkmoth Antheraea polyphemus. A 110 kDa protein was recognized by an antiserum raised against the Drosophila phospholipase C beta (PLC beta p121) and a 80kDa protein was labelled by an antiserum against a synthetic peptide of a conserved region of protein kinase C (PKC). Incubation of homogenized sensory hairs with the main sex pheromone component, (E,Z) 6-11 hexadecadienyl acetate, resulted in a 6-fold increase in the activity of PKC compared to controls without pheromone. In contrast, incubation with pheromone did not affect the activity of protein kinase A (PKA). Activation of PKC by the membrane permeable dioctanoylglycerol led to excitation of the pheromone-sensitive receptor neurons. These data support the current concept that pheromone perception of moths is mediated by the IP3 transduction pathway.
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PMID:Identification of PLC beta and PKC in pheromone receptor neurons of Antheraea polyphemus. 1085 42

Inositide-specific phospholipase C (PLC) signaling constitutes a central intermediate in a number of cellular functions among which the control of cell growth raises a particular interest. Indeed, we have previously shown that nuclear phospholipase C beta1 (PLC beta1) is central for the regulation of mitogen-induced cell growth. We have also assigned by fluorescence in situ hybridization (FISH) analysis the PLC beta1 to human chromosome 20p12. In this study, we have carried out a detailed analysis of the human gene, showing the existence of alternative splicing, which gives rise, besides the two forms (1a and 1b) already shown in rodents, to a new 600 bp smaller form coding for a 110 kDa protein. We have also identified a new exon at the 5', showing no homology with the rodent sequence. Here we provide the complete determination of the exon/intron structure of the gene spanning 250 kb of DNA. We found that the exons are quite small, ranging from 49 to 222 bp, while the introns vary between 108 bp and 34,400 bp. The availability of the understanding of the genome organization of this inositide-specific PLC, which represents a key step of the cell cycle related signaling, could actually pave the way for further genetic analysis of p12 region of human chromosome 20 in diseases involving alterations of the control of cell growth such as malignancies.
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PMID:Molecular characterization of the human PLC beta1 gene. 1221 92