The human L-myc gene encodes multiple nuclear phosphoproteins from alternatively processed mRNAs

The human L-myc gene encodes multiple nuclear phosphoproteins from alternatively processed mRNAs
复制标题

人类 L-myc 基因编码来自选择性加工的 mRNA 的多种核磷蛋白

DOI:
10.1128/mcb.8.10.4381-4388.1988
复制
发表时间:
1988
影响因子:
5.3
通讯作者:
J. Minna
J. Minna
中科院分区:
生物学2区
文献类型:
--
作者:
J. De Grève;J. Battey;J. Fedorko;M. Birrer;G. Evan;F. Kaye;E. Sausville;J. Minna

文献摘要

参考文献

被引文献

相似文献

人类原癌基因L-myc通过交替的核糖核酸加工产生至少四种不同的mRNA。我们在一个高表达L-myc基因的小细胞癌细胞系中发现了两个磷酸化的L-myc蛋白[p60L-myc(人)和p66L-myc(人)],其分子质量分别为60,000和66,000道尔顿。与先前报道的c-myc和N-myc蛋白一样,这些蛋白的半衰期很短,并定位于核基质部分。体外翻译实验表明,p60和p66都是由保留内含子1的3.9kb的基因编码的,而只有p60蛋白是由3.6kb的L-myc基因编码的,而内含子1被去掉了。用2.2kb的模板在体外合成了L-myc蛋白[p32L-myc(人)和p37L-myc(人)],但体内免疫沉淀未检测到此类蛋白。这些观察表明,L-myc转录本的替代RNA加工可能在确定p60L-myc和p66L-myc蛋白的稳态水平方面发挥作用。
The human proto-oncogene L-myc generates at least four different mRNAs by alternative RNA processing. We have identified two phosphorylated L-myc proteins with molecular masses of 60,000 and 66,000 daltons [p60L-myc(human) and p66L-myc(human)] in a small-cell carcinoma line expressing high levels of L-myc mRNA. These proteins have a short half-life and are localized to the nuclear matrix fraction, as previously reported for the c-myc and N-myc proteins. In vitro translation experiments demonstrated that both the p60 and p66 species are encoded by a 3.9-kilobase (kb) mRNA which retains intron 1, while only the p60 protein is translated from a 3.6-kb L-myc mRNA which has had intron 1 removed. While L-myc proteins [p32L-myc(human) and p37L-myc(human)] could be synthesized in vitro from 2.2-kb mRNA templates, no such proteins were detected by immunoprecipitation in vivo. These observations suggest that alternative RNA processing of the L-myc transcript could play a role in determining the steady-state levels of the p60L-myc and p66L-myc proteins.
DOI: --
发表时间: 1986-12
期刊: Cancer research
影响因子: 11.2
作者:
P. Nisen;K. Zimmerman;S. Cotter;F. Gilbert;F. Alt
通讯作者: P. Nisen;K. Zimmerman;S. Cotter;F. Gilbert;F. Alt
DOI: 10.1126/science.6719137
发表时间: 1984-01-01
期刊: SCIENCE
影响因子: 56.9
作者:
BRODEUR, GM;SEEGER, RC;BISHOP, JM
通讯作者: BISHOP, JM
N-myc可以与ras协同转化培养中的正常细胞。
DOI: 10.1073/pnas.82.16.5455
发表时间: 1985
影响因子: 11.1
作者:
Yancopoulos,GD;Nisen,PD;Tesfaye,A;Kohl,NE;Goldfarb,MP;Alt,FW
通讯作者: Alt,FW
人类 N-myc 癌基因编码的蛋白质的鉴定和表征。
DOI: 10.1126/science.3008339
发表时间: 1986
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Slamon,DJ;Boone,TC;Seeger,RC;Keith,DE;Chazin,V;Lee,HC;Souza,LM
通讯作者: Souza,LM
DOI: 10.1073/pnas.81.24.7742
发表时间: 1984-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
RAMSAY, G;EVAN, GI;BISHOP, JM
通讯作者: BISHOP, JM