Characterization of genomic poly(dT-dG).poly(dC-dA) sequences: structure, organization, and conformation

Characterization of genomic poly(dT-dG).poly(dC-dA) sequences: structure, organization, and conformation
复制标题

基因组 Poly(dT-dG).poly(dC-dA) 序列的表征:结构、组织和构象

DOI:
--
复制
发表时间:
1984
影响因子:
5.3
通讯作者:
B. Stollar
B. Stollar
中科院分区:
生物学2区
文献类型:
--
作者:
H. Hamada;M. Petrino;T. Kakunaga;M. Seidman;B. Stollar

文献摘要

参考文献

被引文献

相似文献

杂交研究表明真核基因组中大量存在聚(dT-dG).聚(dC-dA)(TG 元件),这是一种潜在的 Z-DNA 序列。我们从人类基因组的不同位置分离并表征了 TG 元件:从随机分离的克隆中,与肌动蛋白基因家族相关,并与另一个重复元件连接。结果表明,这些 TG 元件具有以下典型特征:元件由 20 至 60 个碱基对 (dT-dG)n.(dC-dA)n 组成,我们研究中表征的序列两侧没有直接或反向重复,序列散布而不是在卫星块中,元件通常不与其他重复元件相关,并且一些元件发现于编码序列附近或内含子中。对超螺旋质粒中基因组 TG 元件构象的研究表明了 TG 元件的几个独特特性:仅在低离子强度下才呈 Z 型,S1 核酸酶识别其 Z 型,并明显偏爱 B-Z 连接之一,敏感区域在 B-Z 连接附近延伸 20 个碱基对。与超螺旋质粒的结果相反,S1 核酸酶未能识别微型染色体中的 TG 元件。
Hybridization studies suggest the abundant presence of poly(dT-dG).poly(dC-dA) (TG-element), a potential Z-DNA sequence, in eucaryotic genomes. We have isolated and characterized TG-elements from different locations in the human genome: from randomly isolated clones, associated with the actin gene family, and linked to another repeated element. The results indicate that the following features are typical of these TG-elements: the elements consist of 20 to 60 base pairs of (dT-dG)n.(dC-dA)n, the sequences characterized in our study were not flanked by direct or inverted repeats, the sequences are interspersed rather than in satellite blocks, the elements are not usually associated with other repeated elements, and some of the elements are found near coding sequences or in introns. Studies on the conformation of a genomic TG-element in a supercoiled plasmid indicate several distinct properties of the TG-element: it is in the Z-form only at low ionic strength, S1 nuclease recognizes its Z-form with a marked preference for one of the B-Z junctions, and the sensitive region extends for 20 base pairs near the B-Z junction. In contrast to the result with the supercoiled plasmid, S1 nuclease failed to recognize the TG-element in minichromosomes.
非 Alu 家族散布在人类 DNA 中的重复序列及其转录活性。
DOI: 10.1093/nar/12.6.2669
发表时间: 1984
影响因子: 14.9
作者:
Sun,L;Paulson,KE;Schmid,CW;Kadyk,L;Leinwand,L
通讯作者: Leinwand,L
DOI: 10.1016/0022-2836(81)90219-9
发表时间: 1981-01-01
影响因子: 5.6
作者:
DEININGER, PL;JOLLY, DJ;SCHMID, CW
通讯作者: SCHMID, CW
DOI: 10.1073/pnas.80.8.2127
发表时间: 1983-04
影响因子: 11.1
作者:
T. Vasicek;B. E. McDevitt;M. Freeman;B. Fennick;G. Hendy;J. Potts;A. Rich;H. Kronenberg
通讯作者: T. Vasicek;B. E. McDevitt;M. Freeman;B. Fennick;G. Hendy;J. Potts;A. Rich;H. Kronenberg
DOI: 10.1073/pnas.78.6.3546
发表时间: 1981-01-01
期刊: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子: --
作者:
LAFER, EM;MOLLER, A;RICH, A
通讯作者: RICH, A
人类和黑猩猩伪 α 珠蛋白基因侧翼的基因间 DNA 序列。
DOI: 10.1093/nar/11.22.8087
发表时间: 1983
影响因子: 14.9
作者:
Sawada,I;Beal,MP;Shen,CK;Chapman,B;Wilson,AC;Schmid,C
通讯作者: Schmid,C