Expression of the ligand-binding nicotinic acetylcholine receptor subunit D alpha 2 in the Drosophila central nervous system.
Expression of the ligand-binding nicotinic acetylcholine receptor subunit D alpha 2 in the Drosophila central nervous system.
复制标题
配体结合烟碱乙酰胆碱受体亚基 D α 2 在果蝇中枢神经系统中的表达。
DOI:
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发表时间:
1994
期刊:
影响因子:
--
通讯作者:
E. Gundelfinger
中科院分区:
文献类型:
--
作者:
Petra Jonas;B. Phannavong;Renate Schuster;Christiane Schröder;E. Gundelfinger
The D alpha 2 gene encodes a ligand-binding subunit of nicotinic acetylcholine receptors (nAChRs) from Drosophila melanogaster. We have studied the distribution of D alpha 2 transcripts and protein by in situ hybridization and immunohistochemistry, respectively, as well as the regulation of D alpha 2 gene expression in vivo using D alpha 2 promoter fragments fused to the Escherichia coli lacZ gene. Transcripts and protein from the D alpha 2 gene were detected exclusively in the central nervous system. Both in late embryos and adults D alpha 2-like immunoreactivity is widely but not uniformly distributed in the synaptic neuropil, suggesting that the D alpha 2 protein is a subunit of a synaptic nicotinic receptor. Its distribution resembles that of ALS and ARD proteins, two other nAChR subunits of the fly. Five different D alpha 2-lacZ fusion gene constructs were introduced into the Drosophila genome by P-element-mediated gene transfer to identity functional elements of the D alpha 2 promoter. All constructs produce a basic lacZ expression pattern that is compatible with the distribution of D alpha 2 transcripts and protein. A 880 bp upstream fragment harbors the cis elements for the expression of a weak but specific basic D alpha 2 pattern. The next 350 bp further upstream significantly enhance beta-galactosidase expression without influencing the pattern of expression. Between 1.7 and 7.3 kb upstream of the transcription start site one or more elements that are required for D alpha 2 expression in optic lobe tangential cells are located.
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影响因子:
10.5
作者:
JOHNSON, WA;MCCORMICK, CA;HIRSH, J
通讯作者:
HIRSH, J
影响因子:
3.3
作者:
H. Robertson;C. Preston;R. Phillis;D. Johnson-Schlitz;Wendy K. Benz;W. Engels
通讯作者:
H. Robertson;C. Preston;R. Phillis;D. Johnson-Schlitz;Wendy K. Benz;W. Engels
DOI:
--
发表时间:
1991
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Prody,CA;Merlie,JP
通讯作者:
Merlie,JP
影响因子:
10.5
作者:
Sun,XH;Lis,JT;Wu,R
通讯作者:
Wu,R
影响因子:
10.5
作者:
Topol,J;Dearolf,CR;Prakash,K;Parker,CS
通讯作者:
Parker,CS