scholarly journals Target Site Specificity of the Tos17 Retrotransposon Shows a Preference for Insertion within Genes and against Insertion in Retrotransposon-Rich Regions of the Genome

2003 ◽  
Vol 15 (8) ◽  
pp. 1771-1780 ◽  
Author(s):  
Akio Miyao ◽  
Katsuyuki Tanaka ◽  
Kazumasa Murata ◽  
Hiromichi Sawaki ◽  
Shin Takeda ◽  
...  
Keyword(s):  
2019 ◽  
Vol 39 (13) ◽  
Author(s):  
Angad Garg ◽  
Yehuda Goldgur ◽  
Ana M. Sanchez ◽  
Beate Schwer ◽  
Stewart Shuman

ABSTRACT Pho7 is the Schizosaccharomyces pombe fission yeast Zn2Cys6 transcriptional factor that drives a response to phosphate starvation in which phosphate acquisition genes are upregulated. Here we report a crystal structure at 1.6-Å resolution of the Pho7 DNA-binding domain (DBD) bound at its target site 2 in the pho1 promoter (5′-TCGGAAATTAAAAA). Comparison to the previously reported structure of Pho7 DBD in complex with its binding site in the tgp1 promoter (5′-TCGGACATTCAAAT) reveals shared determinants of target site specificity as well as variations in the protein-DNA interface that accommodate different promoter DNA sequences. Mutagenesis of Pho7 amino acids at the DNA interface identified nucleobase contacts at the periphery of the footprint that are essential for the induction of pho1 expression in response to phosphate starvation and for Pho7 binding to site 1 in the pho1 promoter.


2019 ◽  
Vol 76 (3) ◽  
pp. 423-436.e3 ◽  
Author(s):  
Jonas Westergaard Højfeldt ◽  
Lin Hedehus ◽  
Anne Laugesen ◽  
Tülin Tatar ◽  
Laura Wiehle ◽  
...  
Keyword(s):  

Structure ◽  
2020 ◽  
Vol 28 (8) ◽  
pp. 954-962.e4 ◽  
Author(s):  
Samual D. Dick ◽  
Stefania Federico ◽  
Siobhan M. Hughes ◽  
Valerie E. Pye ◽  
Nicola O'Reilly ◽  
...  

2011 ◽  
Vol 55 (11) ◽  
pp. 5370-5373 ◽  
Author(s):  
Gaelle Cuzon ◽  
Thierry Naas ◽  
Patrice Nordmann

ABSTRACTThe carbapenemase geneblaKPC, which is rapidly spreading worldwide, is located on a Tn3-based transposon, Tn4401. In a transposition-conjugation assay, Tn4401was able to mobilizeblaKPC-2gene at a frequency of 4.4 × 10−6/recipient cell. A 5-bp target site duplication was evidenced upon each insertion without target site specificity. This study demonstrated that Tn4401is an active transposon capable of mobilizingblaKPCgenes at high frequency.


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