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This enzyme work well at A↓pN, T ↓pN sites, and especially A↓pN sites are 100% degraded. However, it is difficult to degrade C↓pC, C↓pG site. Mung bean exonuclease is a nuclease derived from mung beans that removes nucleotides in a step-wise manner from single stranded DNA molecules and is used to remove such ssDNA from a mixture also ...
To follow the transition of dsDNA (double-stranded) to ssDNA (single-stranded), intercalating dyes are employed. These dyes show differential fluorescence emission dependent on their association with double-stranded or single-stranded DNA. SYBR Green I is a first generation dye for HRM. It fluoresces when intercalated into dsDNA and not ssDNA.
A section of DNA. The bases lie horizontally between the two spiraling strands [15] (animated version). The DNA double helix is stabilized primarily by two forces: hydrogen bonds between nucleotides and base-stacking interactions among aromatic nucleobases. [16] The four bases found in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T).
In the RecFOR pathway, the RecFR complex binds where the single-strand DNA of the 3' meets the double-strand DNA. RecO then displaces SSBP from the ssDNA, although SSBP remains attached to RecO. RecFOR then loads RecA onto a recessed 5' end of this ssDNA-dsDNA junction. The RecR subunit in RecFR then interacts with RecO to form the RecFOR complex.
Orthopoxvirus particles. A DNA virus is a virus that has a genome made of deoxyribonucleic acid (DNA) that is replicated by a DNA polymerase.They can be divided between those that have two strands of DNA in their genome, called double-stranded DNA (dsDNA) viruses, and those that have one strand of DNA in their genome, called single-stranded DNA (ssDNA) viruses. dsDNA viruses primarily belong ...
At a wavelength of 260 nm, the average extinction coefficient for double-stranded DNA (dsDNA) is 0.020 (μg/mL) −1 cm −1, for single-stranded DNA (ssDNA) it is 0.027 (μg/mL) −1 cm −1, for single-stranded RNA (ssRNA) it is 0.025 (μg/mL) −1 cm −1 and for short single-stranded oligonucleotides it is dependent on the length and base ...
Nucleic acid thermodynamics is the study of how temperature affects the nucleic acid structure of double-stranded DNA (dsDNA). The melting temperature (T m) is defined as the temperature at which half of the DNA strands are in the random coil or single-stranded (ssDNA) state. T m depends on the length of the DNA molecule and its specific ...
In RNA viruses, homologous recombination can be either precise or imprecise. In the precise type of RNA-RNA recombination, there is no difference between the two parental RNA sequences and the resulting crossover RNA region. Because of this, it is often difficult to determine the location of crossover events between two recombining RNA sequences.