Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2008-12-8
pubmed:abstractText
Phosphoinositides are lipid second messengers that are essential for many cellular processes, including signal transduction and cell compartmentalization. Among them, phosphatidylinositol 5-phosphate (PtdIns5P) is the least characterized, although several proteins involved in its regulation are implicated in human diseases. We studied the distribution of 32 PtdIns5P-metabolizing proteins in 39 eukaryotic genomes. Phylogenetic profiles identify four groups of co-evolving proteins, confirming known protein complexes and revealing new ones. The complexes comprise a phosphatase, a kinase and a regulator; this indicates that physical interactions between the three partners are necessary for the acute spatial regulation of PtdIns5P turnover. By examining PtdIns5P metabolism in this new perspective, we propose a role for PtdIns5P in membrane trafficking from late endosomal compartments to the plasma membrane.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0968-0004
pubmed:author
pubmed:issnType
Print
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
453-60
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
PtdIns5P regulation through evolution: roles in membrane trafficking?
pubmed:affiliation
Department of Structural Biology and Genomics, rue Laurent Fries, Illkirch, F-67400 France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't