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Isolation of deletion alleles by G4 DNA-induced mutagenesis. 2009

Daphne B Pontier, and Evelien Kruisselbrink, and Victor Guryev, and Marcel Tijsterman
Hubrecht Institute-Koninklijke Nederlandse Akademie van Wetenschappen, University Medical Centre Utrecht, Utrecht, The Netherlands.

Metazoan genomes contain thousands of sequence tracts that match the guanine-quadruplex (G4) DNA signature G(3)N(x)G(3)N(x)G(3)N(x)G(3), a motif that is intrinsically mutagenic, probably because it can form secondary structures during DNA replication. Here we show how and to what extent this feature can be used to generate deletion alleles of many Caenorhabditis elegans genes.

UI MeSH Term Description Entries
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D000483 Alleles Variant forms of the same gene, occupying the same locus on homologous CHROMOSOMES, and governing the variants in production of the same gene product. Allelomorphs,Allele,Allelomorph
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D016296 Mutagenesis Process of generating a genetic MUTATION. It may occur spontaneously or be induced by MUTAGENS. Mutageneses
D017173 Caenorhabditis elegans A species of nematode that is widely used in biological, biochemical, and genetic studies. Caenorhabditis elegan,elegan, Caenorhabditis
D017353 Gene Deletion A genetic rearrangement through loss of segments of DNA or RNA, bringing sequences which are normally separated into close proximity. This deletion may be detected using cytogenetic techniques and can also be inferred from the phenotype, indicating a deletion at one specific locus. Deletion, Gene,Deletions, Gene,Gene Deletions
D054856 G-Quadruplexes Higher-order DNA and RNA structures formed from guanine-rich sequences. They are formed around a core of at least 2 stacked tetrads of hydrogen-bonded GUANINE bases. They can be formed from one two or four separate strands of DNA (or RNA) and can display a wide variety of topologies, which are a consequence of various combinations of strand direction, length, and sequence. (From Nucleic Acids Res. 2006;34(19):5402-15) DNA G-Quadruplexes,DNA, Quadruplex,G-Quadruplexes, DNA,G-Quadruplexes, RNA,Guanine-Quadruplexes,Guanine-Quartets,Guanine-Tetrads,Quadruplex DNA,RNA, G-Quadruplexes,Tetraplex DNA,DNA G Quadruplexes,DNA, Tetraplex,G Quadruplexes,G Quadruplexes, DNA,G Quadruplexes, RNA,G-Quadruplexes RNA,G-Quadruplexes RNAs,Guanine Quadruplexes,Guanine Quartets,Guanine Tetrads,Guanine-Quartet,Guanine-Tetrad,RNA G-Quadruplexes,RNA, G Quadruplexes,RNAs, G-Quadruplexes

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