p110δ, a Novel Phosphatidylinositol 3-Kinase Catalytic Subunit That Associates with p85 and Is Expressed Predominantly in Leukocytes
Year: 1997
Type: article
Abstract: We have identified a novel p110 isoform of phosphatidylinositol 3-kinase from human leukocytes that we have termed p110delta. In addition, we have independently isolated p110delta from a mouse embryo library on the basis of its ability to interact with Ha-RasV12 in the yeast two-hybrid system. This unique isoform contains all of the conserved structural features characteristic of the p110 family. Recombinant p110delta phosphorylates phosphatidylinositol and coimmunoprecipitates with p85. However, in contrast to previously described p110 subunits, p110delta is expressed in a tissue-restricted fashion; it is expressed at high levels in lymphocytes and lymphoid tissues and may therefore play a role in phosphatidylinositol 3-kinase-mediated signaling in the immune system.
Source: Journal of Biological Chemistry
Institutions: EKOS Corporation, University of Michigan, Fred Hutch Cancer Center
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: hybrid
Estimated APC paid: $3,430
Funder: National Cancer Institute
OpenAlex ID: W2017190378