A Rare Family of gtwin Retrotransposon Carrying a Mutation in the tRNA-Primer Binding Site Is Amplified in G-32 Drosophila melanogaster Strain

V. B. Salenko; A. P. Kotnova; I. A. Glukhov; Yu. E. Stefanov; S. A. Surkov; N. V. Lyubomirskaya; Y. V. Ilyin

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A Rare Family of gtwin Retrotransposon Carrying a Mutation in the tRNA-Primer Binding Site Is Amplified in G-32 Drosophila melanogaster Strain

机译：罕见的gtwin反转录转座子携带tRNA引物结合位点的突变在G-32果蝇黑色素瘤菌株中扩增。

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The LTR-retrotransposon gtwin of Drosophila melanogaster was first cloned from the laboratory strain G-32, which is characterized by a strong amplification of copies of this transposable element [1]. In addition, strain G-32 has a number of other unique features, such as the presence in the majority of studied species of a complex extended inversion in the third chromosome, within which gtwin insertions are accumulated [2], as well as an increased frequency of occurrence of single-stranded DNA breaks, which cause recombination processes and gene conversion [3]. Currently, gtwin transpositions in strain G-32 are not observed; however, extrachromosomal circular copies of this element containing two polymorphic sites in the binding sequence of the tRNA primer for the synthesis of the minus strand of DNA were identified in the genome.

机译：黑腹果蝇的LTR-逆转录转座子gtwin首先从实验室菌株G-32克隆，其特征是该转座因子的拷贝强烈扩增[1]。此外，G-32菌株还具有许多其他独特特征，例如在大多数研究物种中，第三条染色体中存在复杂的延伸倒位，其中gtwin插入物在其中积累[2]，并且其数量增加。单链DNA断裂的发生频率，这导致重组过程和基因转化[3]。目前，在菌株G-32中没有观察到gtwin转座；然而，在基因组中鉴定出了该元件的染色体外环状拷贝，该拷贝在tRNA引物的结合序列中含有两个多态性位点，用于合成DNA的负链。

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《Doklady biochemistry & biophysics》 |2011年第janaafeba期|p.16-19|共4页
作者
V. B. Salenko; A. P. Kotnova; I. A. Glukhov; Yu. E. Stefanov; S. A. Surkov; N. V. Lyubomirskaya; Y. V. Ilyin;
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Engelhardt Institute of Molecular Biology,Russian Academy of Sciences,ul. Vavilova 32, Moscow, 119991 Russia;

Engelhardt Institute of Molecular Biology,Russian Academy of Sciences,ul. Vavilova 32, Moscow, 119991 Russia;

Engelhardt Institute of Molecular Biology,Russian Academy of Sciences,ul. Vavilova 32, Moscow, 119991 Russia;

Engelhardt Institute of Molecular Biology,Russian Academy of Sciences,ul. Vavilova 32, Moscow, 119991 Russia;

Engelhardt Institute of Molecular Biology,Russian Academy of Sciences,ul. Vavilova 32, Moscow, 119991 Russia;

Engelhardt Institute of Molecular Biology,Russian Academy of Sciences,ul. Vavilova 32, Moscow, 119991 Russia;

Engelhardt Institute of Molecular Biology,Russian Academy of Sciences,ul. Vavilova 32, Moscow, 119991 Russia;

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1. Retrotransposon gtwin in the Drosophila melanogaster Laboratory Strain G-32: An Increased Number of Copies of This Element in the Genome Caused Chromosomal Aberration [J] . Yu. E. Stefanov, A. P. Kotnova, E. G. Pasyukova, Doklady biochemistry & biophysics . 2007,第1a6期

机译：果蝇G-32的果蝇实验室逆转录转座子gtwin：基因组中此元素的副本数量增加导致染色体畸变。
2. Amplification of “defective” retrotransposon gtwin in D. melanogaster strain carrying large complex chromosomal aberration [J] . Yury E. Stefanov, Ivan A. Glukhov, Alina P. Kotnova, Molecular Genetics and Genomics . 2010,第5期

机译：携带大型复杂染色体畸变的黑腹果蝇中“有缺陷”逆转录转座子gtwin的扩增
3. Amplification of "defective" retrotransposon gtwin in D. melanogaster strain carrying large complex chromosomal aberration [J] . Yury E. Stefanov, Ivan A. Glukhov, Alina P. Kotnova, Molecular genetics and genomics: MGG . 2010,第4期

机译：携带大的复杂染色体畸变的D. melanogaster菌株中“有缺陷的”逆转录转座子gtwin的扩增
4. Identification of multiple transcription initiation polyadenylation and splice sites in the Drosophila melanogaster TART family of telomeric retrotransposons [O] . Patrick H. Maxwell, John M. Belote, Robert W. Levis -1

机译：果蝇端粒反转录转座子的果蝇TART家族中的多个转录起始聚腺苷酸化和剪接位点的鉴定。
5. Amplification of the phosphorylation site - ATP-binding site cDNA fragment of the Na+,K+-ATPase and the Ca2+-ATPase of Drosophila melanogaster by polymerase chain reaction [O] . Váradi András, Gilmore-Heber Maureen, Benz Edward J. 1989

机译：果蝇Na +，K + -ATPase和Ca2 + -ATPase磷酸化位点-ATP结合位点cDNA片段的聚合酶链反应

A Rare Family of gtwin Retrotransposon Carrying a Mutation in the tRNA-Primer Binding Site Is Amplified in G-32 Drosophila melanogaster Strain

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