Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2004-9-28
pubmed:abstractText
The rolling blackout (rbo) gene encodes an integral plasma membrane lipase required for Drosophila phototransduction. Photoreceptors are enriched for the RBO protein, and temperature-sensitive rbo mutants show reversible elimination of phototransduction within minutes, demonstrating an acute requirement for the protein. The block is activity dependent, indicating that the action of RBO is use dependent. Conditional rbo mutants show activity-dependent depletion of diacylglycerol and concomitant accumulation of phosphatidylinositol phosphate and phosphatidylinositol 4,5-bisphosphate within minutes of induction, suggesting rapid downregulation of phospholipase C (PLC) activity. The RBO requirement identifies an essential regulatory step in G-protein-coupled, PLC-dependent inositol lipid signaling mediating activation of TRP and TRPL channels during phototransduction.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1097-6256
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1070-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:15361878-Amino Acid Sequence, pubmed-meshheading:15361878-Animals, pubmed-meshheading:15361878-Animals, Genetically Modified, pubmed-meshheading:15361878-Base Sequence, pubmed-meshheading:15361878-Carboxylic Ester Hydrolases, pubmed-meshheading:15361878-Cell Membrane, pubmed-meshheading:15361878-Chromosome Mapping, pubmed-meshheading:15361878-DNA, Complementary, pubmed-meshheading:15361878-Diglycerides, pubmed-meshheading:15361878-Down-Regulation, pubmed-meshheading:15361878-Drosophila Proteins, pubmed-meshheading:15361878-Drosophila melanogaster, pubmed-meshheading:15361878-GTP-Binding Proteins, pubmed-meshheading:15361878-Gene Expression Regulation, pubmed-meshheading:15361878-Membrane Potentials, pubmed-meshheading:15361878-Membrane Proteins, pubmed-meshheading:15361878-Molecular Sequence Data, pubmed-meshheading:15361878-Mutation, pubmed-meshheading:15361878-Phosphatidylinositol 4,5-Diphosphate, pubmed-meshheading:15361878-Phospholipases, pubmed-meshheading:15361878-Photoreceptor Cells, Invertebrate, pubmed-meshheading:15361878-Temperature, pubmed-meshheading:15361878-Type C Phospholipases, pubmed-meshheading:15361878-Vision, Ocular
pubmed:year
2004
pubmed:articleTitle
Rolling blackout, a newly identified PIP2-DAG pathway lipase required for Drosophila phototransduction.
pubmed:affiliation
Department of Biological Sciences, Vanderbilt Kennedy Center, Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee 37235-1634, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.