Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6402
pubmed:dateCreated
1992-12-24
pubmed:abstractText
The fungal metabolite brefeldin A is a powerful tool for investigating membrane traffic in eukaryotic cells. The effects of brefeldin A on traffic are partly explained by its ability to prevent binding of cytosolic coat proteins onto membranes. The non-clathrin coatomer complex binds reversibly to Golgi membranes in a GTP-controlled cycle. The low-molecular-mass GTP-binding protein ADP-ribosylation factor (ARF), which also associates reversibly with Golgi membranes, is required for coatomer binding and probably accounts for the control by guanine nucleotide of the coatomer-membrane interaction. Brefeldin A prevents the assembly of coatomer onto the membrane by inhibiting the GTP-dependent interaction of ARF with the Golgi membrane, but the nature of this interaction has not been established. Here we demonstrate that Golgi membranes can specifically catalyse the exchange of GTP onto ARF and that brefeldin A prevents this function.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0028-0836
pubmed:author
pubmed:issnType
Print
pubmed:day
26
pubmed:volume
360
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
350-2
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Brefeldin A inhibits Golgi membrane-catalysed exchange of guanine nucleotide onto ARF protein.
pubmed:affiliation
Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't