PURIFICATION AND CLONING OF A RIBOSOMAL-RNA GENE FRAGMENT FROM MOUSE DNA

被引:7
作者
MISHIMA, Y [1 ]
SAKAI, M [1 ]
MURAMATSU, M [1 ]
KATAOKA, T [1 ]
HONJO, T [1 ]
机构
[1] UNIV TOKYO, FAC MED, DEPT PHYSIOL CHEM & NUTR, TOKYO 113, JAPAN
来源
PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES | 1978年 / 54卷 / 10期
关键词
D O I
10.2183/pjab.54.657
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Newborn mouse DNA was digested with a restriction endonuclease EcoRI and concentrated with respect to ribosomal RNA sequences by an RPC-5 column. DNA fragments of 14–17 kilobases in length, most probably containing promoter region of the ribosomal RNA gene, were used for cloning with λgt WES · λB as a vector using an in vitro packaging technique. Several clones containing 18S rRNA sequences were obtained. One of the clones which was transferred to a plasmid pBR322 (designated as pMrEL-1) was 14 kilobases in length, having only a part of 18S rRNA sequence. These results strongly suggest that this fragment carries a promoter region of the ribosomal RNA gene. © 1978, The Japan Academy. All rights reserved.
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页码:657 / 662
页数:6
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