| http://www.reactome.org/bio... | rdf:type | biopax3:BiochemicalReaction | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:comment | Reviewed: Akkerman, JW, 2009-06-03 | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:comment | Edited: Jupe, S, 2009-09-09 | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:comment | The active form of G protein alpha subunit q (Gq-alpha) was found to activate phospholipase C beta-1 (PLC-beta1), in investigations using bovine membranes. Subsequently, all 4 human isoforms have been shown to be activated by Gq, though activation of PLCbeta-4 is limited. In recombinant assays, several activated rat G alpha q family members were found to stimulate human PLC-beta isoforms with the same rank order of decreasing potency. PLC-beta1 stimulation was slightly more than for PLC-beta3; PLC-beta3 stimulation was 10-fold greater than for beta-2. PLC-beta2 is expressed specifically in hematopoietic cells. PLC-beta acts directly on Gq to accelerate hydrolysis of bound GTP, thus PLC-betas are GTPase activating proteins (GAPs). The crystal structure of the C-terminal region from Turkey PLC-beta, revealed a novel fold composed almost entirely of three long helices forming a coiled-coil that dimerizes along its long axis in an antiparallel orientation. The extent of the dimer interface and gel exclusion chromatography data suggest that PLC-betas are functionally dimeric. | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:comment | Authored: Jupe, S, 2009-06-03 | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:xref | urn:biopax:UnificationXref:... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:xref | http://identifiers.org/pubm... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:xref | http://identifiers.org/pubm... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:xref | urn:biopax:UnificationXref:... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:xref | http://identifiers.org/pubm... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:dataSource | urn:biopax:Provenance:react... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:dataSource | http://www.reactome.org/bio... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:displayName | PLC beta is activated by G alpha (q) | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:left | http://www.reactome.org/bio... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:left | http://www.reactome.org/bio... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:right | http://www.reactome.org/bio... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:stepProcess | http://www.reactome.org/bio... | lld:biopax3 |
| http://www.reactome.org/bio... | biopax3:pathwayComponent | http://www.reactome.org/bio... | lld:biopax3 |
