Molecular cloning of a novel mRNA sequence expressed in cleavage stage mouse embryos

Molecular cloning of a novel mRNA sequence expressed in cleavage stage mouse embryos
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卵裂期小鼠胚胎中表达的新型 mRNA 序列的分子克隆

DOI:
10.1002/mrd.1080340102
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发表时间:
1993
影响因子:
2.5
通讯作者:
M. Nozaki
M. Nozaki
中科院分区:
生物学3区
文献类型:
--
作者:
H. Miyamoto;A. Matsushiro;M. Nozaki

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在一种研究小鼠早期发育过程中转录的基因的方法中,从8细胞桑椹胚中分离的poly(A)RNA构建了cDNA文库。用从8细胞桑椹胚或未受精卵分离的poly(A)RNA上合成的标记cDNA探针差异筛选cDNA文库。选择在8细胞桑椹胚中丰度增加的6个克隆并进一步分析。测序分析表明,这些克隆中的一些对应于RNA转录从B1和B2重复序列,以及mRNA的细胞色素C氧化酶I和NADH脱氢酶III来自线粒体基因组。一个克隆与任何已知序列都不相同。未鉴定序列(M025)在未受精卵中的水平较低,但在2细胞期增加。氨基酸序列分析表明,M025基因可能编码一种钙结合蛋白。© 1993 Wiley利斯公司
In an approach to study genes transcribed during early mouse development, a cDNA library was constructed from poly(A) RNA isolated from the 8‐cell morula. The cDNA library was differentially screened with labelled cDNA probes synthesized on poly(A) RNA isolated from the 8‐cell morula or unfertilized eggs. Six clones which increased in abundance in the 8‐cell morula were selected and further analyzed. Sequencing analyses showed that some of these clones corresponded to RNA transcripts from B1 and B2 repetitive sequences, as well as mRNA for cytochrome C oxidase I and NADH dehydrogenase III derived from the mitochondrial genome. One clone was not identical to any known sequences. The unidentified sequence (M025) was found at low levels in the unfertilized egg, but increased at the 2‐cell stage. The predicted amino acid sequence revealed that the M025 gene may encode a Ca2+ binding protein. © 1993 Wiley‐Liss, Inc.
DOI: --
发表时间: 1990
期刊: The Journal of biological chemistry
影响因子: --
作者:
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发表时间: 1987
期刊: Development (Cambridge, England)
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