Avancerad sökning

Hittade 5 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Development of benzoquinoquinoxaline derivatives as triplex-specific probes : Recognition of DNA structures at repeats sequences

   Författare :Helen Bergquist; Rula Zain; Keith Fox; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Triplex; H-DNA; BQQ; BQQ-OP; BQQ-Bodipy; triplet repeat; DNA; non-B-DNA; pkd1; frataxin; Friedreich s ataxia; Molecular biology; Molekylärbiologi; Molecular Biology; molekylärbiologi;

   Sammanfattning : Repeat sequences are associated with several human diseases, such as Friedreich’s ataxia, polycystic kidney disease and cancer. These sequences can form non-B-DNA structures, including triplex (H-DNA) DNA, and are associated with genomic instability and altered gene expression. LÄS MER

3. 2. Fixation of Functionalized DNA Nanostructures

   Författare :Erik Lundberg; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; triplex recognition; dna; self-assembly; gel electrophoresis; nanotechnology; cross-linking; spectroscopy; fixation; fret; click chemistry;

   Sammanfattning : This thesis features results from two different studies on a fully addressable non-repetitive network on the nanometre scale, assembled by synthetic DNA molecules. A bio-inspired molecular approach, based on principles of self-assembly, has brought about a paradigm shift in nanoscience, from a top-down to a bottom-up perspective. LÄS MER

4. 3. Bottom-up Fabrication of Functional DNA Nanostructures

   Författare :Erik Lundberg; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; click chemistry; gel electrophoresis; self-assembly; cross-linking; lipid membrane; fixation; linear dichroism; nanotechnology; spectroscopy; fret; dna; triplex recognition;

   Sammanfattning : This thesis demonstrates bottom-up fabrication of a fully addressable non-repetitive network on the nanometer scale, assembled by synthetic DNA molecules. Each side constitutes a unique sequence of 10 bases, i.e. 3. LÄS MER

5. 4. Structural Adaptation of DNA to Small Ligands and Recombination Proteins

   Författare :Hye-Kyung Kim; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; triplex DNA; groove binders; intercalators; SANS; DNA; optical spectroscopy; recombination proteins;

   Sammanfattning : In order to contribute to the understanding of mechanisms of recognition in nucleic acid systems, the interaction of DNA with a variety of ligands, representing different cases of adaptation of the double-helix structure, was studied using flow linear dichroism (LD), circular dichroism (CD), fluorescence and absorption spectroscopic techniques. A chiral hydrophobic metal complex, [Ru(dpphen)3]2+ was examined, since this had been reported to be the most efficient molecule to discriminate DNA handedness. LÄS MER

7. 5. Some Aspects of Nucleic Acids Chemistry

   Författare :Edouard Zamaratski; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bioorganic chemistry; Bioorganisk kemi; Bioorganic chemistry; Bioorganisk kemi; bioorganisk kemi; Biorganic Chemistry;

   Sammanfattning : This thesis is divided into two parts based on a total of 8 papers: Part 1: Synthesis, physicochemical and biochemical studies of chemically modified oligonucleotides and their duplexes and triplexes. Potency of the chromophore conjugated DNA oligonucleotides as antigene and antisense gene repressors was evaluated. LÄS MER