Single-stranded Dna
Single-stranded Dna - Related Videos
13:46
Separation of Single-stranded DNA, Double-stranded DNA and RNA from an Environmental Viral Community Using Hydroxyapatite Chromatography
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Cited by 5 •
2011
We describe an efficient method to separate single-stranded DNA, double-stranded DNA and RNA molecules from environmental viral communities. Nucleic acids are fractionated using hydroxyapatite chromatography with increasing concentrations of phosphate-containing buffers. This method permits the isolation of all viral nucleic acid types from environmental samples.
03:02
Microsphere Polymerase Chain Reaction to Amplify Single-Stranded DNA
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2025
This video describes the technique of amplifying single-stranded DNA using oligonucleotide-coated polymer microspheres in a single-tube reaction. This process yields pure single-stranded DNA, which can be further used for DNA sequencing and microarray analysis.
10:23
Self-assembly of Complex Two-dimensional Shapes from Single-stranded DNA Tiles
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Cited by 5 •
2015
DNA tiling is an effective approach to make programmable nanostructures. We describe the protocols to construct complex two-dimensional shapes by the self-assembly of single-stranded DNA tiles.
01:03
Single-Strand DNA Binding Proteins
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2023
For successful DNA replication, the unwinding of double-stranded DNA must be accompanied by stabilization and protection of the separated single strands of the DNA. This crucial task is performed by single-strand DNA-binding (SSB) proteins. They bind to the DNA in a sequence-independent manner, which means that the nitrogenous bases of the DNA need not be present in a specific order for binding of SSB proteins to it. The binding of SSB proteins straightens single-stranded DNA (ssDNA) and makes...
08:53
Strand-Specific Analysis of Proteins at Replicating DNA Strands by Enrichment and Sequencing of Protein-Associated Nascent DNA Method
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2025
Enrichment and sequencing of protein-associated nascent DNA (eSPAN) was developed to detect the relative abundance of a chromatin-associated protein on two replicating DNA strands, thereby revealing molecular insight into chromatin replication and its coupled processes. This protocol describes eSPAN procedures in yeast and mouse embryonic stem (ES) cells.
FAQs
Because the bases are not paired with a second DNA strand, they can form complementary hydrogen bonds with another nucleic acid strand. This enables single-stranded DNA to hybridize with matching sequences and also allows parts of the molecule to fold into defined structures. These interactions support molecular recognition and help explain its value in biotechnology.
Complementary base pairing allows a new DNA strand to align with a single-stranded DNA template under suitable conditions. The existing sequence therefore provides information for synthesizing a matching strand. This templating property connects ssDNA with replication-related processes and supports its use in amplification methods and other workflows that require sequence-directed DNA production.
The main functional difference is the accessibility of its bases. In double-stranded DNA, bases participate in pairing between two strands, whereas ssDNA presents an unpaired sequence that can interact directly with complementary nucleic acids or fold back on itself. Consequently, ssDNA can provide flexible recognition and structural behavior useful for studying genetic materials and designing biotechnology tools.
Its sequence and the surrounding conditions influence whether single-stranded DNA pairs with another nucleic acid strand or forms an internal structure. Complementary sequences favor hydrogen-bonded hybridization, while suitable internal base relationships can support folding. These alternatives matter because they determine how the molecule presents its sequence and shape during molecular recognition, synthesis, or biotechnology applications.
A probe uses the sequence-specific pairing ability of ssDNA to interact with a complementary nucleic acid sequence. Researchers can therefore select or design a strand whose bases recognize a target sequence under suitable conditions. This application makes ssDNA useful for examining molecular identity and interactions, especially when sequence-specific hybridization is central to the experiment.
Single-stranded DNA can provide an accessible sequence for complementary base pairing and DNA synthesis, two properties relevant to sequencing and amplification workflows. In these applications, the strand’s nucleotide order supplies information or a template for generating related DNA products. The resulting approaches allow researchers to analyze or reproduce genetic sequence information using controlled molecular interactions.
Studying ssDNA helps researchers examine viral genomes and replication intermediates, where the behavior of an unpaired nucleic acid strand can reveal how genetic information is maintained or copied. Its ability to hybridize, fold, and serve as a synthesis template also provides experimental ways to investigate molecular recognition and the behavior of flexible genetic materials in biology.
Synthetic biology can take advantage of ssDNA sequence recognition, folding, and templating properties when researchers design nucleic-acid-based systems. A selected sequence may provide a programmable interaction site, a defined molecular structure, or information for producing a complementary strand. These features make ssDNA useful for constructing and investigating engineered genetic materials without limiting its relevance to natural DNA processes.