Suppr超能文献

含聚腺苷酸的多瘤“早期”和“晚期”信使核糖核酸的分离与特性分析

Isolation and characterization of poly(A)-containing polyoma "early" and "late" messenger RNAs.

作者信息

Rosenthal L J

出版信息

Nucleic Acids Res. 1976 Mar;3(3):661-76. doi: 10.1093/nar/3.3.661.

Abstract

During late lytic infection of mouse kidney cell cultures polyoma 16S and 19S (late 19S RNA) were isolated by oligo(dT)-cellulose chromatography. Approximately 60-80% of total cytoplasmic polyoma RNA contained tracts of poly(A) which were retained by oligo(dT)-cellulose. Early in lytic infection when viral DNA synthesis and the production of capsid protein are blocked by the addition of 5-fluorodeoxyuridine, approximately 100% of polyoma "early" 19S RNA was quantitatively retained by oligo(dT)-cellulose indicating the presence of poly(A) tracts on most 19S mRNA molecules. In addition, 2 classes polyoma RNA, synthesized after the onset of cellular RNA synthesis under conditions where DNA synthesis is inhibited with 5-fluorodeoxyuridine, were found to contain tracts of poly(A). These species sedimenting at 16S and 19S in aqueous sucrose density gradients were also quantitatively retained by oligo (dT)-cellulose.

摘要

在小鼠肾细胞培养物的晚期裂解感染期间,通过寡聚(dT)-纤维素色谱法分离出多瘤病毒16S和19S(晚期19S RNA)。大约60-80%的细胞质多瘤病毒RNA含有多聚(A)序列,这些序列被寡聚(dT)-纤维素保留。在裂解感染早期,当通过添加5-氟脱氧尿苷阻断病毒DNA合成和衣壳蛋白产生时,大约100%的多瘤病毒“早期”19S RNA被寡聚(dT)-纤维素定量保留,这表明大多数19S mRNA分子上存在多聚(A)序列。此外,在DNA合成被5-氟脱氧尿苷抑制的条件下,在细胞RNA合成开始后合成的两类多瘤病毒RNA被发现含有多聚(A)序列。这些在蔗糖密度梯度水溶液中沉降系数为16S和19S的RNA种类也被寡聚(dT)-纤维素定量保留。

相似文献

6
Characterization of late polyoma mRNA.晚期多瘤病毒mRNA的特性分析
J Virol. 1974 Aug;14(2):249-60. doi: 10.1128/JVI.14.2.249-260.1974.
10
A study on the transcription of the polyoma viral genome.一项关于多瘤病毒基因组转录的研究。
Proc Natl Acad Sci U S A. 1970 Jan;65(1):226-33. doi: 10.1073/pnas.65.1.226.

引用本文的文献

本文引用的文献

1
Purification of polyoma virus.多瘤病毒的纯化
Virology. 1963 Feb;19:158-68. doi: 10.1016/0042-6822(63)90005-9.

文献检索

告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。

立即免费搜索

文件翻译

保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。

立即免费体验