Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2001-3-29
pubmed:abstractText
Assembly of the soluble N-ethylmaleimide sensitive factor attachment protein receptor (SNARE) complex is an essential step for neurotransmitter release in synapses. The presynaptic plasma membrane associated proteins (t-SNAREs), SNAP-25 (synaptosome-associated protein of 25,000 Da) and syntaxin 1A may form an intermediate complex that later binds to vesicle-associated membrane protein 2 (VAMP2). Using spin labeling electron paramagnetic resonance (EPR), we found that the two t-SNARE proteins assemble into a parallel four-helix bundle that consists of two identical syntaxin 1A components and the N-terminal and C-terminal domains of SNAP-25. Although the structure is generally similar to that of the final SNARE complex, the middle region of the helical bundle appears more flexible in the t-SNARE complex. Such flexibility might facilitate interactions between VAMP2 and the t-SNARE complex.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1072-8368
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
308-11
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
The neuronal t-SNARE complex is a parallel four-helix bundle.
pubmed:affiliation
Department of Chemistry, University of California, Berkeley, California 94720, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't