Complementary DNA strands were generated from 300 ng mirVana enriched miRNA fractions in a 20 μL reaction volume using the Invitrogen NCode miRNA First-Strand cDNA Synthesis kit.
DNA sequence data from both strands was generated from single clones using the primer walking approach, which also conducted with ABI 3730x1 DNA Analyzer.
Binding sites on the positive strand are generated by a distinct set of states to those on the negative strand.
One instance where this might happen is when two UV lesions, one on each DNA strand, are generated in a limited region; this configuration has been defined "closely opposing UV lesions" [73 75].
For second-strand cDNA synthesis, the mRNA template was removed and a replacement strand was generated to form double-stranded (ds) cDNA.
The second strand was generated using a SuperScript Double-Stranded cDNA Synthesis kit (Invitrogen, Camarillo, CA), purified via magnetic beads, the ends repaired and a single adenine base added to the 3′ ends.
Then the first cDNA strand was synthesized using the mRNA fragments as templates, and the second strand was generated using a SuperScript Double-Stranded cDNA Synthesis kit (Invitrogen, Camarillo, CA), purified via magnetic beads, the ends repaired and a single nucleotide A (adenine) added to the 3′ ends.
The leading strand moves continuously, while the lagging strand is generated discontinuously.
Virtually perfect 50-nt base-space reads on the forward strand were generated from the same reference.
The first cDNA strand was generated using RevertAid™ First Strand cDNA Synthesis Kit (Fermentas, Thermo SCIENTIFIC, USA) following the manufacture' protocol.
