double-stranded DNA


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double-stranded DNA (dsDNA),

a molecule of DNA consisting of two parallel strands joined by hydrogen bonds between complementary purines and pyrimidines; a double helix, the form in which DNA occurs in chromosomes.
References in periodicals archive ?
Su, "Micropatterned paper devices using amine-terminated polydiacetylene vesicles as colorimetric probes for enhanced detection of double-stranded DNA," Sensors and Actuators B: Chemical, vol.
But large double-stranded DNA viruses like poxviruses and herpesviruses are much slower to evolve than RNA viruses, leaving scientists wondering how they adapt to compete in the arms race with the immune system.
Incubation of splenocytes with 3 [micro]M mitomycin C for 1 and 4.5 h resulted in 23 and 32%, respectively, less double-stranded DNA than in saline-treated cells (Table 2).
That method, created in the mid-1970s by Frederick Sanger of the Medical Research Council in Cambridge, England, starts with the isolation of long strings of double-stranded DNA from cells.
According to Stanford Medical School, "The picture of RNA polymerase at work provided an atomic-level window into how the protein complex unzips and then re-zips the double-stranded DNA like a Ziploc bag after using the internal code to build a specific RNA molecule.
The researchers found a way to control the assembly of gold nanoparticles using rigid, double-stranded DNA. Their technique takes advantage of this molecule's natural tendency to pair up components called bases, known by the code letters A, T, G and C.
The life of phages is discussed in contributions on DNA packaging in double-stranded DNA phages, general aspects of lysogeny, gene regulatory circuitry of phage lambda, regulation of lambda gene expression by transcription termination and antitermination, and phage lysis.
Topo II, a nuclear protein that is essential for normal cellular processes such as replication, binds to double-stranded DNA cutting it to relieve supercoiling.
Chlordecone also raised levels of antibodies to native, double-stranded DNA, another specific marker for SLE.
These ribozymes were synthesized and used as templates in PCR reactions to generate double-stranded DNA. Each was cloned into pPCR-Script by blunt-end ligation and transformed into XL-10 Gold Ultracompetent cells.
The small globular lesions, which look like M&M's attached to the skin, are caused by a large double-stranded DNA virus of the poxvirus family.