Transposable element evolution in Heliconius suggests genome diversity within Lepidoptera [0.03%]
棒尺蛾中转座子的进化表明鳞翅目昆虫基因组的多样性
Christine A Lavoie,Roy N Platt nd,Peter A Novick et al.
Christine A Lavoie et al.
Background: Transposable elements (TEs) have the potential to impact genome structure, function and evolution in profound ways. In order to understand the contribution of transposable elements (TEs) to Heliconius melpomen...
In and out of the rRNA genes: characterization of Pokey elements in the sequenced Daphnia genome [0.03%]
进出rDNA基因组：水溞基因组测序分析揭示Pokey元件的特征
Tyler A Elliott,Deborah E Stage,Teresa J Crease et al.
Tyler A Elliott et al.
Background: Only a few transposable elements are known to exhibit site-specific insertion patterns, including the well-studied R-element retrotransposons that insert into specific sites within the multigene rDNA. The only...
Endonuclease-containing Penelope retrotransposons in the bdelloid rotifer Adineta vaga exhibit unusual structural features and play a role in expansion of host gene families [0.03%]
水熊虫Adineta vaga中的Penelope转座子具有独特的结构特征并在宿主基因家族的扩展中发挥作用
Irina R Arkhipova,Irina A Yushenova,Fernando Rodriguez
Irina R Arkhipova
Background: Penelope-like elements (PLEs) are an enigmatic group of retroelements sharing a common ancestor with telomerase reverse transcriptases. In our previous studies, we identified endonuclease-deficient PLEs that a...
The Putzig partners DREF, TRF2 and KEN are involved in the regulation of the Drosophila telomere retrotransposons, HeT-A and TART [0.03%]
DREF，TRF2和KEN这三种Putzig蛋白参与调节果蝇端粒转座子HeT-A和TART
Rute Silva-Sousa,Míriam Díaz Varela,Elena Casacuberta
Rute Silva-Sousa
Background: Telomere maintenance in Drosophila relies on the targeted transposition of three very special non-LTR retrotransposons, HeT-A, TART, and TAHRE (HTT). The sequences of the retrotransposon array build up the tel...
Annica Hedberg,Steinar D Johansen
Annica Hedberg
Group I introns are a distinct class of RNA self-splicing introns with an ancient origin. All known group I introns present in eukaryote nuclei interrupt functional ribosomal RNA genes located in ribosomal DNA loci. The discovery of the Tet...
Vincent A Streva,Zachary J Faber,Prescott L Deininger
Vincent A Streva
Background: The non-long terminal repeat (non-LTR) retrotransposons, long interspersed element-1 (LINE-1) and Alu are currently active retroelements in humans. We, and others, have observed that different populations of H...
Regulation of DNA transposition by CpG methylation and chromatin structure in human cells [0.03%]
DNA转座通过染色体结构在人类细胞中的甲基化调节
Tobias Jursch,Csaba Miskey,Zsuzsanna Izsvák et al.
Tobias Jursch et al.
Background: The activity of transposable elements can be regulated by different means. DNA CpG methylation is known to decrease or inhibit transpositional activity of diverse transposons. However, very surprisingly, it wa...
Now on display: a gallery of group II intron structures at different stages of catalysis [0.03%]
现在可供参观的展览：展示催化不同阶段的II类内含子结构画廊
Marco Marcia,Srinivas Somarowthu,Anna Marie Pyle
Marco Marcia
Group II introns are mobile genetic elements that self-splice and retrotranspose into DNA and RNA. They are considered evolutionary ancestors of the spliceosome, the ribonucleoprotein complex essential for pre-mRNA processing in higher euka...
Diversity of transposable elements and repeats in a 600 kb region of the fly Calliphora vicina [0.03%]
果蝇Calliphora vicina一60万碱基区域中的转座元件及重复序列的多样性研究
Bárbara Negre,Pat Simpson
Bárbara Negre
Background: Transposable elements (TEs) are a very dynamic component of eukaryotic genomes with important implications (e.g., in evolution) and applications (e.g., as transgenic tools). They also represent a major challen...
Homologues of bacterial TnpB_IS605 are widespread in diverse eukaryotic transposable elements [0.03%]
细菌TnpB_IS605的同源物在各种真核生物转座元件中广泛存在
Weidong Bao,Jerzy Jurka
Weidong Bao
Background: Bacterial insertion sequences (IS) of IS200/IS605 and IS607 family often encode a transposase (TnpA) and a protein of unknown function, TnpB. ...