Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-7-12
pubmed:abstractText
A chimera based on the chicken alpha4 nicotinic acetylcholine receptor (nAChR) subunit containing an insert from loop B to the N-terminus of the Drosophila melanogaster Dalpha2 (=SAD) subunit was constructed and co-expressed with the chicken beta2 nAChR subunit in Xenopus laevis oocytes. The actions of the neonicotinoid insecticide imidacloprid were examined. Replacement of the region loop B to the N-terminus of the alpha4 subunit by the corresponding region of the Dalpha2 subunit had little effect on the concentration-response curve for imidacloprid. However, replacement of Glu219 by proline in the YXCC motif in loop C of the chimeric alpha4 subunit resulted in a marked displacement to the left of the concentration-response curve for imidacloprid not seen when an equivalent mutation was made in the alpha4beta2 nAChR. The results suggest that the region loop B to the N-terminus in the Dalpha2 subunit contributes to the high imidacloprid sensitivity of the hybrid Dalpha2beta2 nAChR.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0304-3940
pubmed:author
pubmed:issnType
Print
pubmed:day
9
pubmed:volume
385
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
168-72
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Insect-vertebrate chimeric nicotinic acetylcholine receptors identify a region, loop B to the N-terminus of the Drosophila Dalpha2 subunit, which contributes to neonicotinoid sensitivity.
pubmed:affiliation
Department of Applied Biological Chemistry, School of Agriculture, Kinki University, 3327-204 Nakamachi, Nara 631-8505, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't