Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
Pt 6
pubmed:dateCreated
2007-5-11
pubmed:databankReference
pubmed:abstractText
Nicotinic acetylcholine receptors (nAChRs) are ligand-gated ion channels that mediate the fast actions of the neurotransmitter, acetylcholine. Invertebrate nAChRs are of interest as they are targets of widely-selling insecticides and drugs that control nematode parasites. Here, we report the cloning of ShAR2beta, a candidate nAChR subunit from the blood fluke, Schistosoma haematobium, which is the third trematode nAChR subunit to be characterized. While ShAR2beta possesses key structural features common to all nAChRs, its amino acid sequence shares considerably low identity with those of insect, nematode and vertebrate nAChR subunits. In particular, the second transmembrane domain of ShAR2beta, which lines the ion channel, bears unusual amino acid residues which will likely give rise to a receptor with distinct functional properties. Phylogenetic analysis shows that ShAR2beta is a divergent nAChR subunit that may define a clade of trematode-specific subunits. We discuss our findings in the context of potentially exploiting this receptor as a target for controlling schistosome parasites.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0031-1820
pubmed:author
pubmed:issnType
Print
pubmed:volume
134
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
833-40
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
ShAR2beta, a divergent nicotinic acetylcholine receptor subunit from the blood fluke Schistosoma.
pubmed:affiliation
The School of Biology, University of Leeds, West Yorkshire, Leeds, LS2 9JT, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't