Can I read In vitro selection of a DNA aptamer targeted against Shigella dysenteriae on EtoBox?
In vitro selection of a DNA aptamer targeted against Shigella dysenteriae by Nuo Duan; Xiaoying Ding; Shijia Wu; Yu Xia; Xiaoyuan Ma; Zhouping Wang; Jie Chen is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is In vitro selection of a DNA aptamer targeted against Shigella dysenteriae about?
To identify DNA aptamers demonstrating binding specificity for Shigella dysenteriae, a whole-bacterium Systemic Evolution of Ligands by Exponential enrichment (SELEX) method was applied to a combinatorial library of single-stranded DNA (ssDNA) molecules. After several rounds of selection using S. dysenteriae as the target, the highly enriched oligonucleotide pool was sequenced and then grouped into different families based on primary sequence homologies and similarities in the secondary structures. Aptamer S 1, which showed particularly high binding affinity in preliminary studies, was chosen for further characterisation. This aptamer displayed a dissociation constant (K d value) of 23.47 ± 2.48 nM. Binding assays to assess the specificity of aptamer S 1 showed high binding affinity for S. dysenteriae and low apparent binding affinity for other bacteria. The ssDNA aptamers generated may serve as a new type of molecular probe for microbial pathogens, as it has the potential to overcome the tedious isolation and purification requirements for complex targets.
Who reads In vitro selection of a DNA aptamer targeted against Shigella dysenteriae?
It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- Nuo Duan; Xiaoying Ding; Shijia Wu; Yu Xia; Xiaoyuan Ma; Zhouping Wang; Jie Chen
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0167-7012)
- Published
- 2013
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)