Cloning and characterization of a G protein alpha-subunit-encoding gene from the basidiomycete, Coprinus congregatus.

Cloning and characterization of a G protein alpha-subunit-encoding gene from the basidiomycete, Coprinus congregatus.
复制标题

担子菌鬼伞 G 蛋白 α 亚基编码基因的克隆和表征。

DOI:
10.1016/0378-1119(95)00378-j
复制
发表时间:
1995
期刊:
影响因子:
3.5
通讯作者:
I. Ross
I. Ross
中科院分区:
生物学3区
文献类型:
--
作者:
K. Kozak;L. Foster;I. Ross

文献摘要

参考文献

被引文献

相似文献

利用PCR技术从鸡腿菇菌丝顶端细胞(HTC)文库中克隆了两个G蛋白α亚基(CGPα1和CGPα2)的cDNA克隆。Cc cgpαl基因的序列分析表明,该基因含有一个开放阅读框(ORF),可翻译成一个假定的353个氨基酸(aa)的产物。预测的CGPα 1蛋白表现出与所有已知G蛋白α亚基的相似性(它具有GTP结合蛋白的所有共有区域),特别是哺乳动物视网膜G蛋白,transducin。CGPα 1的氨基酸序列与转导素亚家族的氨基酸序列有50%的同源性,CGPα 1与转导素α亚基的氨基酸序列分组相同,并且与许多其他G蛋白不同,CGPα 1和转导素似乎都具有霍乱毒素(CTX)和百日咳毒素(PTX)敏感位点。对cgpα 1和cgpα2 mRNA表达的初步RT-PCR分析表明,与cgpα2的组成型表达不同,cgpα 1仅在有对光反应能力的HTC中表达。因此,cgpαl产物,CGPαl,是一个可能的候选者,用于调节在Cc中发现的蓝光诱导的信号转导光形态建成系统
Complementary DNA (cDNA) clones encoding two G protein α-subunit proteins (CGPα1 and CGPα2) were isolated from a Coprinus congregatus (Cc) hyphal tip cell (HTC) library using PCR-generated biotinylated G protein probes. Sequence analysis of the Cc cgpαl gene indicates that the gene contains an open reading frame (ORF) that translates into a putative 353-amino-acid (aa) product. The predicted CGPαl protein exhibits similarity to all known G protein α-subunits (it has all of the consensus regions for a GTP-binding protein), especially the mammalian retinal G protein, transducin. The CGPαl aa sequence is 50% identical overall to the transducin subfamily, cgpαl shares the same aa size grouping as transducin α-subunits and, unlike many other G proteins, both CGPαl and transducin seem to possess a cholera toxin (CTX)- and pertussis toxin (PTX)-sensitive site. Preliminary reverse transcription PCR (RT-PCR) analysis of cgpαl and cgpα2 mRNA expression revealed that, unlike cgpα2 which seems to be constitutively expressed, cgpαl is expressed only in HTC that are competent in responding to light. Thus, the cgpαl product, CGPαl, is a likely candidate for regulating the blue light-induced signal transduction photomorphogenesis system found in Cc
DOI: --
发表时间: 1984
期刊: The Journal of biological chemistry
影响因子: --
作者:
Codina,J;Hildebrandt,JD;Sekura,RD;Birnbaumer,M;Bryan,J;Manclark,CR;Iyengar,R;Birnbaumer,L
通讯作者: Birnbaumer,L
DOI: --
发表时间: 1983
期刊: The Journal of biological chemistry
影响因子: --
作者:
Fung,BK
通讯作者: Fung,BK
DOI: 10.1073/pnas.88.20.8925
发表时间: 1991
影响因子: 11.1
作者:
Warpeha,KM;Hamm,HE;Rasenick,MM;Kaufman,LS
通讯作者: Kaufman,LS
DOI: 10.1038/ki.1987.240
发表时间: 1987-10
影响因子: 19.6
作者:
Tadashi Yamamoto;Curtis B. Wilson
通讯作者: Tadashi Yamamoto;Curtis B. Wilson
DOI: --
发表时间: 1983
期刊: The Journal of biological chemistry
影响因子: --
作者:
Fung,BK;Nash,CR
通讯作者: Nash,CR