Vector Construction
Vector Construction - Related Videos
09:16
A Simple and Efficient Approach to Construct Mutant Vaccinia Virus Vectors
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Cited by 13 •
2016
Vaccinia virus (VV) has been widely used in biomedical research and the improvement of human health. This article describes a simple, highly efficient method to edit the VV genome using a CRISPR-Cas9 system.
12:59
High-throughput CRISPR Vector Construction and Characterization of DNA Modifications by Generation of Tomato Hairy Roots
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Cited by 37 •
2016
Using DNA assembly, multiple CRISPR vectors can be constructed in parallel in a single cloning reaction, making the construction of large numbers of CRISPR vectors a simple task. Tomato hairy roots are an excellent model system to validate CRISPR vectors and generate mutant materials.
09:02
Subcloning Plus Insertion (SPI) - A Novel Recombineering Method for the Rapid Construction of Gene Targeting Vectors
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Cited by 4 •
2015
Gene targeting methodologies can be used to generate transgenic mice with knockout, knock-in and tagged alleles. Here, we describe an improved method of recombineering in E. coli, that we term ‘subcloning plus insertion’, which can be used to generate custom gene targeting vectors rapidly.
14:23
Recombineering Homologous Recombination Constructs in Drosophila
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Cited by 9 •
2013
Homologous recombination techniques greatly advance Drosophila genetics by enabling the creation of molecularly precise mutations. The recent adoption of recombineering allows one to manipulate large pieces of DNA and transform them into Drosophila6. The methods presented here combine these techniques to rapidly generate large homologous recombination vectors.
09:20
Vectors in Multiple Directions
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2023
Source: Nicholas Timmons, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA This experiment demonstrates how vectors add and subtract in multiple directions. The goal will be to analytically calculate the addition or subtraction of multiple vectors and then to experimentally confirm the calculations. A vector is an object with both magnitude and direction. The magnitude of a vector is simply denoted as the length,...
FAQs
Vector design links each backbone element to a specific experimental requirement. The origin of replication helps the recombinant DNA molecule remain in the host cell, while a selectable marker provides a way to distinguish cells associated with the vector. If the goal is expression, the promoter governs when the inserted sequence is expressed under intended biological conditions.
Insert orientation and reading frame are central to reliable expression. The sequence must face the intended direction and remain aligned with the coding context supplied by the vector; otherwise, the resulting construct may not produce the expected product. Sequence verification checks these design features before researchers interpret expression or protein-production results.
Restriction enzyme digestion and ligation join prepared DNA fragments through compatible design, whereas sequence-overlap methods assemble fragments using matching regions. The choice therefore depends on how the insert and backbone are designed for joining. Both approaches aim to produce the intended recombinant molecule, but verification remains important because assembly alone does not confirm orientation, reading frame, or sequence accuracy.
A typical workflow begins by selecting a vector backbone and chosen genetic sequence, then designing the junctions so the insert is correctly oriented and, when needed, in frame with expression elements. Researchers assemble the parts by restriction enzyme digestion and ligation or by sequence-overlap methods. They then verify the resulting sequence before using the construct in downstream biological experiments.
Constructed vectors can carry genes for cloning, enable protein production, support cell modification, and help investigators examine gene regulation or gene function. The appropriate design depends on whether the priority is maintaining the sequence, expressing it, or testing its biological effects. These applications make vector design useful across experimental biology, where different constructs address different research objectives.
Expression is not determined by the insert alone. The vector must contain an appropriate promoter when expression is required, and the construct must operate under the intended biological conditions in the host cell. Consequently, a correctly assembled sequence can still give an uninformative result if its regulatory design does not match the experimental objective.